[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1295":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":21,"key_elements":22,"impurities":11,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":32,"dana8ed2":33,"dana8ed3":34,"dana8ed4":33,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":38,"c":40,"alpha":38,"beta":38,"gamma":38,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":41,"csmetamict":13,"commentcrystal":11,"twinning":42,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":43,"tlform":11,"hmin":44,"hmax":44,"hardtype":45,"vhnmin":38,"vhnmax":38,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":46,"dmeas2":47,"dcalc":48,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":49,"lustretype":50,"commentluster":11,"diapheny":51,"streak":52,"colour":53,"commentcolor":11,"colors":54,"streak_colors":58,"luminescence":11,"uv":59,"cleavage":60,"cleavagetype":61,"fracturetype":62,"tenacity":63,"commentbreak":11,"opticaltype":64,"opticalsign":65,"opticalalpha":38,"opticalalpha2":38,"opticalalphaerror":11,"opticalbeta":38,"opticalbeta2":38,"opticalbetaerror":11,"opticalgamma":38,"opticalgamma2":38,"opticalgammaerror":11,"opticalomega":66,"opticalomega2":67,"opticalomegaerror":11,"opticalepsilon":68,"opticalepsilon2":69,"opticalepsilonerror":11,"opticaln":38,"opticaln2":38,"opticalnerror":11,"optical2vcalc":38,"optical2vcalc2":38,"optical2vcalcerror":11,"optical2vmeasured":38,"optical2vmeasured2":38,"optical2vmeasurederror":11,"rimin":70,"rimax":71,"opticaldispersion":11,"opticalpleochroism":72,"opticalpleochorismdesc":73,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":74,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":75,"otheroccurrence":76,"type_specimen_store":77,"description_short":78,"aboutname":79,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":80,"reviewed_at":11,"variety_of":11,"varieties":81,"group_members":82,"associates":83,"confused_with":103,"type_localities":104,"occurrence_total":111,"citations":112,"images":260,"structures":650,"synonyms":661,"language_names":685,"wikidata_qid":862,"texts":863},1295,"1:1:1295:5","13029dc9-6e2e-4025-8ec1-ed3b6643f99e","Dioptase","Dpt",0,"mineral",null,36817,false,"CuSiO\u003Csub>3\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","CuSiO\u003Csub>3\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20],"Cu","Si","O","H",[17,18,19,20],[17],"14.2.1",[25,26],"APPROVED","GRANDFATHERED","1797","9","C","J","30","61","1","3","Trigonal",10,80,"0","14.566","7.778",18,"On \u003Cmi>{10_11}\u003C\u002Fmi>, uncommon.","Long to short prismatic [0001], dominant forms \u003Cmi>{11_20}, and {02_21}, {13_41}.\u003C\u002Fmi>",5,3,"3.28","3.35","3.296","Vitreous","Sub-Adamantine,Vitreous,Sub-Vitreous","Transparent,Translucent","Green","Emerald Green, blue-green",[55,56,57],"green","blue","colorless",[55],"Nonfluorescent in UV.","Perfect on \u003Cmi>{10_11}\u003C\u002Fmi>","Perfect","Irregular\u002FUneven,Conchoidal","brittle","Uniaxial","+","1.652","1.658","1.704","1.71",1.652,1.71,"Weak","absorption reported as O>E;\r\nhowever, absorption observed as O = very pale powder blue, E = pale cyan; E>O","Pyroelectric","A secondary mineral in the oxidized zones of copper deposits.","In the oxidized zone of some copper deposits.","No defined type material.","Bright emerald-green modified rhombohedral usually elongated crystals.","Named in 1797 by Hauy from the Greek for \"through\" and \"to see\" in allusion to the visibility of internal cleavage planes.","2025-09-02 21:12:31",[],[],[84,94],{"id":85,"name":86,"entrytype":9,"csystem":87,"ima_formula":88,"mindat_formula":89,"hmin":90,"hmax":45,"dmeas":91,"dcalc":92,"primary_image_id":93},1583,"Fornacite","Monoclinic","CuPb\u003Csub>2\u003C\u002Fsub>(CrO\u003Csub>4\u003C\u002Fsub>)(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","Pb\u003Csub>2\u003C\u002Fsub>Cu(CrO\u003Csub>4\u003C\u002Fsub>)(AsO\u003Csub>4\u003C\u002Fsub>)(OH)",2,"6.27","6.30",9296,{"id":95,"name":96,"entrytype":9,"csystem":97,"ima_formula":98,"mindat_formula":98,"hmin":99,"hmax":99,"dmeas":100,"dcalc":101,"primary_image_id":102},2812,"Murdochite","Isometric","Cu\u003Csub>12\u003C\u002Fsub>Pb\u003Csub>2\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>Cl\u003Csub>2\u003C\u002Fsub>",4,"5.9","6.06",16875,[],[105],{"id":106,"txt":107,"latitude":108,"longitude":109,"country":110},2225,"Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Bukhar-Zhyrau District, Karaganda Region, Kazakhstan",49.8163889,73.995,"Kazakhstan",154,[113,116,119,123,127,131,134,139,144,148,153,157,161,166,171,175,180,184,188,193,198,203,208,213,218,223,228,232,236,241,246,251,255],{"id":114,"year":11,"html":115,"doi":11},16107741,"Traite de Minéralogie: III: 477.",{"id":117,"year":11,"html":118,"doi":11},16107750,"Soviet Physics – Doklady: 23: 215-217.",{"id":120,"year":121,"html":122,"doi":11},16107737,1793,"Delamétherie, J.C. (1793) De la cristallisation d'une émeraude. Observations sur la Physique, sur l’Histoire Naturelle et sur les Arts: 42: 154-154.",{"id":124,"year":125,"html":126,"doi":11},19812146,1796,"Haüy, René Just (1796) Extrait du Traité Élémentaire de Minéralogie que le C.en Haüy s'occupe de rédiger. \u003Ci>Journal des mines\u003C\u002Fi>,  5 (28). 249-334 \u003Ca target='_blank' href='https:\u002F\u002Fwww.annales.org\u002Farchives\u002Fannales\u002F1796-1797\u002F128-172.pdf?reftype=.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":128,"year":129,"html":130,"doi":11},16107739,1798,"Haüy, C. (1798) Sur la dioptase. Bulletin des Science, par la Société Philomathique: 1798: 101-101.",{"id":132,"year":129,"html":133,"doi":11},16107740,"Vauquelin, L.N. (1798) De la dioptase de Hauy, émeraudine de delamétherie. Essai dur la dioptase. Observations sur la Physique, sur l’Histoire Naturelle et sur les Arts: 46: 301-302.",{"id":135,"year":136,"html":137,"doi":138},1150273,1842,"Miller, W. H. (1842) XLVII. On the optical constants of tourmaline, dioptase and anatase. \u003Ci>The London, Edinburgh, And Dublin Philosophical Magazine And Journal Of Science\u003C\u002Fi>,  S. 3 Vol. 21 (138) London. 277-278 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F14786444208621546'>doi:10.1080\u002F14786444208621546\u003C\u002Fa>","10.1080\u002F14786444208621546",{"id":140,"year":141,"html":142,"doi":143},4460154,1846,"Websky, M. (1846) Beitrag zur Charakteristik des Dioptas. \u003Ci>Annalen der Physik und Chemie\u003C\u002Fi>, 145. 543-548 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fandp.18461451209'>doi:10.1002\u002Fandp.18461451209\u003C\u002Fa>","10.1002\u002Fandp.18461451209",{"id":145,"year":146,"html":147,"doi":11},16956961,1882,"Hills, R. C. (1882) Dioptase from Arizona. \u003Ci>American Journal Of Science\u003C\u002Fi>,  S. 3 Vol. 23. 325",{"id":149,"year":150,"html":151,"doi":152},399727,1890,"Jannettaz, Édouard (1890) Note sur une dioptase du Congo français. \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  13 (4) 159 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1890.2166'>doi:10.3406\u002Fbulmi.1890.2166\u003C\u002Fa>","10.3406\u002Fbulmi.1890.2166",{"id":154,"year":155,"html":156,"doi":11},16107745,1892,"Lacroix, A. (1892) Sur la dioptase du Congo français. Comptes rendus de l'Académie des Sciences, 114, 1384-1386.",{"id":158,"year":159,"html":160,"doi":11},16107746,1952,"Belov, N.V., Butusov, V.P., Golovastikov, N.J. (1952) Crystal Structure of Dioptase. Doklady Akademii Nauk SSSR, 87, 953-956.",{"id":162,"year":163,"html":164,"doi":165},5707502,1954,"Heide, Hans Gunther (1954) Die Struktur des Dioptas, Cu6(Si6O18)·6 H2O. \u003Ci>Die Naturwissenschaften\u003C\u002Fi>,  41 (17). 402-403 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00629583'>doi:10.1007\u002Fbf00629583\u003C\u002Fa>","10.1007\u002Fbf00629583",{"id":167,"year":168,"html":169,"doi":170},466746,1955,"Heide, H. G., Boll-Dornberger, K., Thilo, E., Thilo, E. M. (1955) Die Struktur des Dioptas, Cu6(Si6O18)6H2O. \u003Ci>Acta Crystallographica\u003C\u002Fi>,  8 (7) 425-430 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0365110x55001345'>doi:10.1107\u002Fs0365110x55001345\u003C\u002Fa>","10.1107\u002Fs0365110x55001345",{"id":172,"year":173,"html":174,"doi":11},16107748,1957,"Belov, N.V. (1957) New silicate structures. Acta Crystallographica: 10: 757-758.",{"id":176,"year":177,"html":178,"doi":179},16104250,1974,"Adams, David M.; Gardner, Ian R. (1974) Single-crystal vibrational spectra of beryl and dioptase. \u003Ci>Journal of the Chemical Society, Dalton Transactions 14\u003C\u002Fi>, 1502-1505 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1039\u002Fdt9740001502'>doi:10.1039\u002Fdt9740001502\u003C\u002Fa>","10.1039\u002Fdt9740001502",{"id":181,"year":182,"html":183,"doi":11},526906,1977,"Ribbe, Paul H., Gibbs, G. V., Hamil, Martha M. (1977) A refinement of the structure of dioptase, Cu6[Si6O18]·6H2O. \u003Ci>American Mineralogist\u003C\u002Fi>,  62 (7-8) 807-811 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM62\u002FAM62_807.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":185,"year":186,"html":187,"doi":11},16107749,1978,"Belov, N.V., Maksimov, B.A., Nozik, Y.Z., Muradyan, L.A. (1978) The refinement of the crystal structure of dioptase Cu6(Si6O18)(H2O)6 by the X-ray and neutron diffraction methods. Doklady Akademii Nauk SSSR: 239: 842-845.",{"id":189,"year":190,"html":191,"doi":192},111577,1988,"Breuer, K.-H.; Eysel, W. (1988) Structural and chemical varieties of dioptase, Cu\u003Csub>6\u003C\u002Fsub>[Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>] · 6 H\u003Csub>2\u003C\u002Fsub>O. I. Thermal properties. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  184 (1-2). 1-12 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1988.184.1-2.1'>doi:10.1524\u002Fzkri.1988.184.1-2.1\u003C\u002Fa>","10.1524\u002Fzkri.1988.184.1-2.1",{"id":194,"year":195,"html":196,"doi":197},111723,1989,"Breuer, K.-H.; Eysel, W.; Müller, R. (1989) Structural and chemical varieties of dioptase, Cu\u003Csub>6\u003C\u002Fsub>[Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>] · 6H\u003Csub>2\u003C\u002Fsub>O. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  187 (1-2). 15-23 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1989.187.1-2.15'>doi:10.1524\u002Fzkri.1989.187.1-2.15\u003C\u002Fa>","10.1524\u002Fzkri.1989.187.1-2.15",{"id":199,"year":200,"html":201,"doi":202},14276573,1993,"Kiseleva, Irina A., Ogorodova, Lyubov P., Melchakova, Lyubov V., Bisengalieva, Mira R. (1993) Thermodynamic properties of copper silicate: dioptase: Cu6Si6O18·6H2O. \u003Ci>The Journal of Chemical Thermodynamics\u003C\u002Fi>, 25 (5) 621-630 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1006\u002Fjcht.1993.1057'>doi:10.1006\u002Fjcht.1993.1057\u003C\u002Fa>","10.1006\u002Fjcht.1993.1057",{"id":204,"year":205,"html":206,"doi":207},152269,1995,"McKeown, David A., Kim, Charles C., Bell, Michael I. (1995) Vibrational analysis of dioptase Cu6Si6O18.6(H2O) and its puckered six-membered ring. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  22 (3)  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00202293'>doi:10.1007\u002Fbf00202293\u003C\u002Fa>","10.1007\u002Fbf00202293",{"id":209,"year":210,"html":211,"doi":212},3141788,1996,"Goryainov, S. V. (1996) Dehydration-induced changes in the vibrational states of dioptase Cu6Si6O18·6H2O. \u003Ci>Journal of Structural Chemistry\u003C\u002Fi>, 37 (1). 58-64 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf02578571'>doi:10.1007\u002Fbf02578571\u003C\u002Fa>","10.1007\u002Fbf02578571",{"id":214,"year":215,"html":216,"doi":217},115302,1997,"Brandt, H.-J.; Otto, H. H. (1997) Synthesis and crystal structure of Cu6[Ge6O18] · 6H2O, a dioptase-type cyclo-germanate. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  212 (1). 34 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1997.212.1.34'>doi:10.1524\u002Fzkri.1997.212.1.34\u003C\u002Fa>","10.1524\u002Fzkri.1997.212.1.34",{"id":219,"year":220,"html":221,"doi":222},6141726,2001,"Selvin, P.Christopher, Watanabe, S., Ayala-Arenas, J.S. (2001) Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase). \u003Ci>Radiation Physics and Chemistry\u003C\u002Fi>, 61. 531-533 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0969-806x(01)00323-1'>doi:10.1016\u002Fs0969-806x(01)00323-1\u003C\u002Fa>","10.1016\u002Fs0969-806x(01)00323-1",{"id":224,"year":225,"html":226,"doi":227},30203,2002,"Cook, Robert B. (2002) Connoisseur's Choice: Dioptase, Tsumeb, Namibia. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  77 (3) 176-180 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00357529.2002.9926680'>doi:10.1080\u002F00357529.2002.9926680\u003C\u002Fa>","10.1080\u002F00357529.2002.9926680",{"id":229,"year":225,"html":230,"doi":231},152923,"Belokoneva, E. L.; Gubina, Yu. K.; Forsyth, J. B.; Brown, P. J. (2002) The charge-density distribution, its multipole refinement and the antiferromagnetic structure of dioptase, Cu6[Si6O18]·6H2O. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  29 (6). 430-438 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-002-0246-6'>doi:10.1007\u002Fs00269-002-0246-6\u003C\u002Fa>","10.1007\u002Fs00269-002-0246-6",{"id":233,"year":225,"html":234,"doi":235},6109088,"Gros, C, Lemmens, P, Choi, K.-Y, Güntherodt, G, Baenitz, M, Otto, H. H (2002) Quantum phase transition in the dioptase magnetic lattice. \u003Ci>Europhysics Letters (EPL)\u003C\u002Fi>, 60. 276-280 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1209\u002Fepl\u002Fi2002-00347-0'>doi:10.1209\u002Fepl\u002Fi2002-00347-0\u003C\u002Fa>","10.1209\u002Fepl\u002Fi2002-00347-0",{"id":237,"year":238,"html":239,"doi":240},5223942,2009,"Ohta, H; Fujisawa, M; Souda, N; Okubo, S; Ohmichi, E; Sakurai, T; Kikuchi, H; Ono, T; Tanaka, H; Matsubayashi, K; et al. (2009) Magnetic susceptibility measurement under high pressure and magnetization measurement of S = 1\u002F2 dioptase lattice antiferromagnet. \u003Ci>Journal of Physics: Conference Series\u003C\u002Fi>,  150 (4). 042151 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1088\u002F1742-6596\u002F150\u002F4\u002F042151'>doi:10.1088\u002F1742-6596\u002F150\u002F4\u002F042151\u003C\u002Fa>","10.1088\u002F1742-6596\u002F150\u002F4\u002F042151",{"id":242,"year":243,"html":244,"doi":245},14209174,2010,"Janson, O., Tsirlin, A. A., Schmitt, M., Rosner, H. (2010) Large quantum fluctuations in the strongly coupled spin-12chains of green dioptaseCu6Si6O18⋅6H2O. \u003Ci>Physical Review B\u003C\u002Fi>, 82 (1)  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1103\u002Fphysrevb.82.014424'>doi:10.1103\u002Fphysrevb.82.014424\u003C\u002Fa>","10.1103\u002Fphysrevb.82.014424",{"id":247,"year":248,"html":249,"doi":250},16449900,2013,"Frost, Ray L., Xi, Yunfei (2013) Thermogravimetric analysis of the copper silicate mineral dioptase Cu6[Si6O18]·6H2O. \u003Ci>Journal of Thermal Analysis and Calorimetry\u003C\u002Fi>, 112 (2) 615-619 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs10973-012-2599-5'>doi:10.1007\u002Fs10973-012-2599-5\u003C\u002Fa>","10.1007\u002Fs10973-012-2599-5",{"id":252,"year":253,"html":254,"doi":11},16963991,2018,"(2018) Dioptase. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fdioptase.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":256,"year":257,"html":258,"doi":259},14259372,2019,"Podlesnyak, A.; Prokhnenko, O.; Nikitin, S. E.; Kolesnikov, A. I.; Matsuda, M.; Dissanayake, S. E.; Prisk, T. R.; Nojiri, H.; Díaz-Ortega, I. F.; Kidder, M. K.; et al. (2019) Magnetic ground state and magnetic excitations in black dioptase \u003Cmml:math xmlns:mml=\"http:\u002F\u002Fwww.w3.org\u002F1998\u002FMath\u002FMathML\">\u003Cmml:mrow>\u003Cmml:msub>\u003Cmml:mi>Cu\u003C\u002Fmml:mi>\u003Cmml:mn>6\u003C\u002Fmml:mn>\u003C\u002Fmml:msub>\u003Cmml:msub>\u003Cmml:mi>Si\u003C\u002Fmml:mi>\u003Cmml:mn>6\u003C\u002Fmml:mn>\u003C\u002Fmml:msub>\u003Cmml:msub>\u003Cmml:mi mathvariant=\"normal\">O\u003C\u002Fmml:mi>\u003Cmml:mn>18\u003C\u002Fmml:mn>\u003C\u002Fmml:msub>\u003C\u002Fmml:mrow>\u003C\u002Fmml:math>. \u003Ci>Physical Review B\u003C\u002Fi>,  100 (18). 184401 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1103\u002Fphysrevb.100.184401'>doi:10.1103\u002Fphysrevb.100.184401\u003C\u002Fa>","10.1103\u002Fphysrevb.100.184401",[261,268,277,287,292,298,306,315,320,328,332,338,345,352,359,367,375,384,393,398,407,416,424,431,438,446,454,461,470,477,485,492,499,508,517,526,533,540,546,553,559,566,572,579,587,595,603,609,616,623,629,636,643],{"id":262,"source_url":263,"license_code":264,"credit_html":265,"title":7,"description":11,"author":11,"original_width":266,"original_height":267},29617,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F149574","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F149574\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",1000,605,{"id":269,"source_url":270,"license_code":264,"credit_html":271,"title":272,"description":273,"author":274,"original_width":275,"original_height":276},52519,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8736868","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8736868\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptasecongo2.jpg","\u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FDioptase\" class=\"mw-redirect\" title=\"Dioptase\">Dioptase\u003C\u002Fa> - Renéville; Djoué, Brazzaville Region (Renéville Region), Republic of Congo (Brazzaville) (4.3x4.3cm)","Didier Descouens",2593,2713,{"id":278,"source_url":279,"license_code":280,"credit_html":281,"title":282,"description":283,"author":284,"original_width":285,"original_height":286},7262,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145215","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145215\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-146729.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kimbedi, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPool_Department\" class=\"extiw\" title=\"en:Pool Department\">Pool Region\u003C\u002Fa>, Republic of Congo (Brazzaville) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-145535.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.0 x 1.7 x 1.4 cm.\u003C\u002Fdd>\n\u003Cdd>Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. These specimens show great color, with larger sized crystals and EXCELLENT gemminess. This particular specimen is comprised of very sharp, highly lustrous, gemmy, rich emerald green color Dioptase crystals forming a very attractive thumbnail specimen. This find seemed to be somewhat limited, and hopefully will produce more of this SUPERB quality Dioptase. With the price of Tsumeb Dioptase specimens rising daily, this is a great opportunity to snag a \"Tsumeb\"-type quality specimen of this species for a fraction of the price. A gorgeous thumbnail of this exciting new material. Ex. Brian Kosnar Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",431,432,{"id":288,"source_url":289,"license_code":264,"credit_html":290,"title":7,"description":11,"author":11,"original_width":266,"original_height":291},29618,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F92283","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F92283\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",680,{"id":293,"source_url":294,"license_code":295,"credit_html":296,"title":7,"description":11,"author":11,"original_width":266,"original_height":297},29619,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F116525","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F116525\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",666,{"id":299,"source_url":300,"license_code":280,"credit_html":301,"title":302,"description":303,"author":284,"original_width":304,"original_height":305},52520,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10109320","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10109320\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-18577.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A startlingly sculptural specimen! Pristine and perfect all around. Erik Louw was a miner on the dioptase stope who traded extensively and accumulated one of the finest Tsumeb miniatures collections, purchased in entirety by the Sussmans in the late 1990's. 4 x 4 x 1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",640,611,{"id":307,"source_url":308,"license_code":264,"credit_html":309,"title":310,"description":311,"author":312,"original_width":313,"original_height":314},7264,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006295","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006295\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase. Reneville, Kongo-9079.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa> (Weight: 126.4 g) – Place of discovery: Reneville, Kongo","Raimond Spekking",5483,4112,{"id":316,"source_url":317,"license_code":264,"credit_html":318,"title":7,"description":11,"author":11,"original_width":266,"original_height":319},29620,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F92297","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F92297\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",580,{"id":321,"source_url":322,"license_code":264,"credit_html":323,"title":324,"description":325,"author":312,"original_width":326,"original_height":327},7265,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006301","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006301\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase. Reneville, Kongo-9081.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa> (Weight: 126.4 g) – Reneville, Kongo",5245,3934,{"id":329,"source_url":330,"license_code":295,"credit_html":331,"title":7,"description":11,"author":11,"original_width":266,"original_height":297},29621,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F116526","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F116526\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":333,"source_url":334,"license_code":264,"credit_html":335,"title":336,"description":325,"author":312,"original_width":337,"original_height":337},7266,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006303","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006303\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase. Reneville, Kongo-9082.jpg",3446,{"id":339,"source_url":340,"license_code":264,"credit_html":341,"title":342,"description":325,"author":312,"original_width":343,"original_height":344},7267,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006311","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006311\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase. Reneville, Kongo-9083.jpg",6192,3483,{"id":346,"source_url":347,"license_code":280,"credit_html":348,"title":349,"description":350,"author":284,"original_width":351,"original_height":286},52524,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166795","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166795\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-249079.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kimbedi, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPool_Department\" class=\"extiw\" title=\"en:Pool Department\">Pool Region\u003C\u002Fa>, Republic of Congo (Brazzaville) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-145535.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.7 x 4.5 x 4.0 cm.\u003C\u002Fdd>\n\u003Cdd>Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. The best of these specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen is filled with sharp, rich emerald green color Dioptase forming a very attractive, three dimensional piece. This find seemed to be somewhat limited, and hopefully will produce more of this fine Dioptase.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",475,{"id":353,"source_url":354,"license_code":264,"credit_html":355,"title":356,"description":325,"author":312,"original_width":357,"original_height":358},7268,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006324","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130006324\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase. Reneville, Kongo-9084.jpg",6694,4463,{"id":360,"source_url":361,"license_code":280,"credit_html":362,"title":363,"description":364,"author":284,"original_width":365,"original_height":366},52525,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447357","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447357\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-di13f.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Christoff Mine, Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-212307.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 7.5 x 5.4 x 5.1 cm\n\u003Cdl>\u003Cdt>Dioptase\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Most specimens from this new mine are relatively gracile and elegant, or contain massive dioptase with small crystals shooting from it. This special piece is a relative monster, in comparison. It is a large specimen of massive dioptase, with a bit of matrix backing it, on which sit FAT, robust, squarish crystals of dioptase of huge size. That large crystal is 4.5 x 2.6 x 2.4 cm in size!!! It is contacted at the base, but is pristine on its termination and displays very dramatically. The crystals to the lower-left of the big one look oddly squarish- a habit I simply have never seen in dioptase, ever, from anywhere. Although the piece isn't perfect at the edges, it presents a display core that is impactful and shocking for the size of that central crystal; and I think is of some importance in the literal sense of the word, for the species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",1800,1745,{"id":368,"source_url":369,"license_code":280,"credit_html":370,"title":371,"description":372,"author":284,"original_width":373,"original_height":374},52526,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10448435","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10448435\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-fc11b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 3.1 x 2.3 x 1.8 cm\n\u003Cdl>\u003Cdt>Dioptase\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A killer toenail featuring a 2.25 x 1 x 1 cm dioptase crystal perched atop a natural pedestal. No damage, this is pristine! The aesthetics are incredible. Would trim slightly to a full thumbnail, as well...\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,302,{"id":376,"source_url":377,"license_code":280,"credit_html":378,"title":379,"description":380,"author":381,"original_width":382,"original_height":383},52527,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=52162572","Assianir, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=52162572\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptasio.jpg","dioptasio","Assianir",1826,2842,{"id":385,"source_url":386,"license_code":264,"credit_html":387,"title":388,"description":389,"author":390,"original_width":391,"original_height":392},52528,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113721533","Koreller, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113721533\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Muséum de Nantes - 254 - Dioptase (République Démocratique du Congo).jpg","Dioptase, en provenance de la République Démocratique du Congo, au Muséum de Nantes","Koreller",4272,2848,{"id":394,"source_url":395,"license_code":264,"credit_html":396,"title":397,"description":389,"author":390,"original_width":391,"original_height":392},52529,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113721535","Koreller, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113721535\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Muséum de Nantes - 255 - Dioptase (République Démocratique du Congo).jpg",{"id":399,"source_url":400,"license_code":264,"credit_html":401,"title":402,"description":403,"author":404,"original_width":405,"original_height":406},52532,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146206964","TomWG00, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146206964\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lapworth Museum of Geology - Dioptase.jpg","A specimen of Dioptase (copper cyclosilicate)","TomWG00",3024,4032,{"id":408,"source_url":409,"license_code":295,"credit_html":410,"title":411,"description":412,"author":413,"original_width":414,"original_height":415},52533,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=177744683","WantuchWaclaw, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=177744683\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase crystal macro Wantuch.jpg","Macro of a dioptase crystal, a raw material for green pigment.","WantuchWaclaw",564,1006,{"id":417,"source_url":418,"license_code":280,"credit_html":419,"title":420,"description":421,"author":284,"original_width":422,"original_height":423},16337,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150665","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150665\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-174051.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.1 x 7.1 x 3 cm.\u003C\u002Fdd>\n\u003Cdd>This is a fine specimen of dioptase with unusually well-isolated crystals on sparkling white matrix of calcite (or, perhaps, the related rare species Minrecordite). The crystals reach 6 mm in size and there are several dozen present. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,567,{"id":425,"source_url":426,"license_code":280,"credit_html":427,"title":428,"description":429,"author":284,"original_width":422,"original_height":430},16338,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150668","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150668\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-174054.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.2 x 6.8 x 4.2 cm.\u003C\u002Fdd>\n\u003Cdd>This is a fine specimen of dioptase with unusually well-isolated crystals on sparkling white matrix of calcite (or, perhaps, the related rare species Minrecordite). The crystals reach 1.3 cm in size! Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",543,{"id":432,"source_url":433,"license_code":280,"credit_html":434,"title":435,"description":436,"author":274,"original_width":437,"original_height":383},7261,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8876953","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8876953\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptasetsumeb5.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa> with \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">calcite\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002Fminrecordite\" class=\"extiw\" title=\"en:minrecordite\">minrecordite\u003C\u002Fa>  - Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia (5.5x4cm).",4153,{"id":439,"source_url":440,"license_code":264,"credit_html":441,"title":442,"description":443,"author":444,"original_width":182,"original_height":445},7263,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41089362","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=41089362\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase, quartz 1100.2612.jpg","dioptase, quartz : Kaokoveld Plateau, Kunene Region, Namibia","Géry PARENT",1318,{"id":447,"source_url":448,"license_code":280,"credit_html":449,"title":450,"description":451,"author":284,"original_width":452,"original_height":453},52521,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10130987","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10130987\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Calcite-41440.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Beautifully gemmy and lustrous, emerald-green dioptase crystals to 4 mm line a vug in matrix filled with lustrous, transparent, colorless calcite rhombs to 1.0 cm from Tsumeb. 4.3 x 3.5 x 3.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",620,650,{"id":455,"source_url":456,"license_code":280,"credit_html":457,"title":458,"description":459,"author":284,"original_width":422,"original_height":460},52523,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148223","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148223\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Shattuckite-163280.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FShattuckite\" class=\"extiw\" title=\"en:Shattuckite\">Shattuckite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30243.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.5 x 2.1 x 2.0 cm.\u003C\u002Fdd>\n\u003Cdd>An adorable thumbnail specimen with two gemmy dioptase crystals to about 7mm, perched inside a velvety shattuckite vug. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",460,{"id":462,"source_url":463,"license_code":295,"credit_html":464,"title":465,"description":466,"author":467,"original_width":468,"original_height":469},2238,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588390","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588390\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Atacamit Olivenit Dioptas 2.jpg","Atacamite, olivenite and Dioptase from La Farola, Chile","Slashme",4191,2970,{"id":471,"source_url":472,"license_code":295,"credit_html":473,"title":474,"description":466,"author":467,"original_width":475,"original_height":476},2239,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588391","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588391\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Atacamit Olivenit Dioptas 1.jpg",4541,2989,{"id":478,"source_url":479,"license_code":280,"credit_html":480,"title":481,"description":482,"author":274,"original_width":483,"original_height":484},9295,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6804395","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6804395\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptasereneville2.jpg","\u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FDioptase\" class=\"mw-redirect\" title=\"Dioptase\">Dioptase\u003C\u002Fa> \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FCerussite\" class=\"mw-redirect\" title=\"Cerussite\">Cerussite\u003C\u002Fa> \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FFornacite\" class=\"mw-redirect\" title=\"Fornacite\">Fornacite\u003C\u002Fa> - Renéville; Djoué, Brazzaville Region (Renéville Region), \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FRepublic_of_Congo\" class=\"mw-redirect\" title=\"Republic of Congo\">Republic of Congo\u003C\u002Fa> (Brazzaville)  (8x7cm)",4592,3056,{"id":486,"source_url":487,"license_code":280,"credit_html":488,"title":489,"description":490,"author":284,"original_width":491,"original_height":373},11254,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145332","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145332\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Heterogenite-146937.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHeterogenite\" class=\"extiw\" title=\"en:Heterogenite\">Heterogenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.9 x 2.6 x 2.1 cm.\u003C\u002Fdd>\n\u003Cdd>The star of this Tsumeb dioptase is a 1.8 cm crystal that has this very unusual and pretty multiply terminated, stepped form. These emerald green crystals are surrounded by black heterogenite, so the specimen has an unusual appearance compared to the average Tsumeb diop. Tsumeb dioptases are ALWAYS desirable and have always been among the crystal specimens most highly prized by collectors.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",268,{"id":493,"source_url":494,"license_code":280,"credit_html":495,"title":496,"description":497,"author":284,"original_width":422,"original_height":498},12031,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153047","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153047\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Hydrozincite-Wulfenite-180778.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHydrozincite\" class=\"extiw\" title=\"en:Hydrozincite\">Hydrozincite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWulfenite\" class=\"extiw\" title=\"en:Wulfenite\">Wulfenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTiger\" class=\"extiw\" title=\"en:Tiger\">Tiger\u003C\u002Fa>, Mammoth District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPinal_County,_Arizona\" class=\"extiw\" title=\"en:Pinal County, Arizona\">Pinal County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArizona\" class=\"extiw\" title=\"en:Arizona\">Arizona\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3380.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.9 x 2.5 x 2.1 cm.\u003C\u002Fdd>\n\u003Cdd>Beautifully gemmy, emerald-green dioptase needles are concentrated near the crest of the wedge-like, mounded matrix. Wulfenites cover the entire piece and are coated with hydrozincite. Ex. John Ydren Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",421,{"id":500,"source_url":501,"license_code":280,"credit_html":502,"title":503,"description":504,"author":505,"original_width":506,"original_height":507},16336,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9451376","Joachim Esche, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9451376\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Minrecordite and Dioptase - Tsumeb Mine, Namibia.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinrecordite\" class=\"extiw\" title=\"en:Minrecordite\">Minrecordite\u003C\u002Fa> (colorless) und \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa> (green) - Locality: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia - collected 1979, field of view 10 mm","Joachim Esche",1024,793,{"id":509,"source_url":510,"license_code":280,"credit_html":511,"title":512,"description":513,"author":514,"original_width":515,"original_height":516},16339,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77344348","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77344348\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Minrecordite, Dioptase-431573.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinrecordite\" class=\"extiw\" title=\"en:Minrecordite\">Minrecordite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Oshikoto Region, Namibia\u003C\u002Fdd>\n\u003Cdd>Field of view: 6 mm\u003C\u002Fdd>\n\u003Cdd>Ex Al Kidwell collection\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",932,711,{"id":518,"source_url":519,"license_code":520,"credit_html":521,"title":522,"description":523,"author":524,"original_width":506,"original_height":525},27334,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32615615","CC BY 3.0","John Hagstrom, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=32615615\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Vauquelinite, Dioptase-439000.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAntigorite\" class=\"extiw\" title=\"en:Antigorite\">Antigorite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Blue Bell Mine (Blue Bell claims; Hard Luck Mine; Hard Luck claims; Atkinson), Baker, Soda Lake Mts, San Bernardino Co., California, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Vauquelinite and Dioptase. specimen dimension is 21CM X9CM, field of view is 5mm. taken with a Variscope using Helicon Focus.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","John Hagstrom",768,{"id":527,"source_url":528,"license_code":280,"credit_html":529,"title":530,"description":531,"author":284,"original_width":373,"original_height":532},49894,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162556","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162556\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Dolomite-223892.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDolomite\" class=\"extiw\" title=\"en:Dolomite\">Dolomite\u003C\u002Fa> (Var.: Cobaltoan Dolomite)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.8 x 6.4 x 5.0 cm.\u003C\u002Fdd>\n\u003Cdd>A fine, 3-dimensional Tsumeb specimen with several vugs on 3 sides richly lined with scintillating, gemmy, emerald-green dioptase crystals. Several of the vugs are lined with sparkly pink, cobaltoan dolomite microcrystals, adding a very nice contrast to the dioptase crystals. Ex. Rob Smith Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",337,{"id":534,"source_url":535,"license_code":280,"credit_html":536,"title":537,"description":538,"author":284,"original_width":422,"original_height":539},51393,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141460","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141460\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Mottramite-131576.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.2 x 2.9 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>A specimen of sparkly, bright green crystals of dioptase on calcite matrix, sprinkled with little moss-colored mottramites. Pretty!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",577,{"id":541,"source_url":542,"license_code":280,"credit_html":543,"title":544,"description":538,"author":284,"original_width":373,"original_height":545},51394,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141461","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141461\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Mottramite-131577.jpg",377,{"id":547,"source_url":548,"license_code":280,"credit_html":549,"title":550,"description":551,"author":284,"original_width":422,"original_height":552},52773,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172332","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172332\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Calcite-Duftite-282213.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSmithsonite\" class=\"extiw\" title=\"en:Smithsonite\">Smithsonite\u003C\u002Fa> (Var.: Cobaltoan Smithsonite)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.6 x 3.2 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>A very nice three-sided combination miniature from the Tsumeb Mine. The mounded piece is totally covered on one side with super-sparkly, gemmy, emerald-green dioptase crystals. The dioptase crystals are nicely discrete on the other side and are beautifully accented by a 6 mm calcite rhomb. This side and the base reveal the silky lustre, pink cobaltoan smithsonite botryoids of the matrix. Two sides are further accented with contrasting pastel-green duftite. Ex. Wes Parker Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",442,{"id":554,"source_url":555,"license_code":280,"credit_html":556,"title":557,"description":490,"author":284,"original_width":422,"original_height":558},58826,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145330","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145330\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Heterogenite-146936.jpg",433,{"id":560,"source_url":561,"license_code":280,"credit_html":562,"title":563,"description":564,"author":284,"original_width":422,"original_height":565},64095,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147774","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147774\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Calcite-160735.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa> (Var.: Plumboan Calcite)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 10.9 x 6.9 x 4.9 cm.\u003C\u002Fdd>\n\u003Cdd>A rare Tsumeb association piece out of the Tsumeb collection of Rob Smith! Here you have these sparkling little bright green crystals of dioptase, sprinkled over a bed of lead-rich (plumboan) calcites. VERY rare to see these two together, indicating a really unusual sequence of solutions that flowed through the pocket in which this piece formed. Of course, anything rare from Tsumeb gets a lot of attention these days.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",383,{"id":567,"source_url":568,"license_code":280,"credit_html":569,"title":570,"description":564,"author":284,"original_width":373,"original_height":571},64096,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147775","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147775\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Calcite-160736.jpg",346,{"id":573,"source_url":574,"license_code":280,"credit_html":575,"title":576,"description":577,"author":284,"original_width":422,"original_height":578},74460,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175913","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175913\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Baryte-Plancheite-131661.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBaryte\" class=\"extiw\" title=\"en:Baryte\">Baryte\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30243.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.8 x 3.1 x 1.4 cm.\u003C\u002Fdd>\n\u003Cdd>A great dioptase specimen with a bit of a surprise on it. I could not believe it, but this seems to be a little orange barite perched atop! Never seen the combo! The central dioptase is 1.3 cm and pristine. The one on the edge is larger, but incomplete at its edge. Ex. Charlie Key Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",490,{"id":580,"source_url":581,"license_code":280,"credit_html":582,"title":583,"description":584,"author":284,"original_width":585,"original_height":586},74462,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176103","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176103\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-152687.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBrazzaville\" class=\"extiw\" title=\"en:Brazzaville\">Brazzaville (Renéville; Djoué)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBrazzaville\" class=\"extiw\" title=\"en:Brazzaville\">Brazzaville Department (Renéville Department)\u003C\u002Fa>, Republic of Congo (Brazzaville) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4325.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.0 x 5.4 x 3.4 cm.\u003C\u002Fdd>\n\u003Cdd>An aesthetic specimen of a rich cluster of very gemmy and lustrous, dark emerald-green dioptase crystals jauntily perched atop a banded plancheite-covered matrix from the classic Congo locality of Reneville. The largest crystal is 1.2 cm and all of the major crystals are undamaged. A bit of scattered edge wear is certainly not a detraction on this old-timer. Ex. Brent Lockhart Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",554,487,{"id":588,"source_url":589,"license_code":280,"credit_html":590,"title":591,"description":592,"author":284,"original_width":593,"original_height":594},74465,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177327","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177327\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-Chrysocolla-251520.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChrysocolla\" class=\"extiw\" title=\"en:Chrysocolla\">Chrysocolla\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa> (Var.: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSmoky_quartz\" class=\"extiw\" title=\"en:Smoky quartz\">Smoky Quartz\u003C\u002Fa>)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kaokoveld Mine, Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2426.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 11.5 x 8.5 x 5 cm.\u003C\u002Fdd>\n\u003Cdd>A fine specimen of gemmy, lustrous Dioptase from the Kaokoveld Region. The largest of these \"gems\" is 1.5 cm, and they flash a brilliant green in the light. Contrast is enhanced by the powdery blue coating of chrysocolla, all on a quartz matrix. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",403,527,{"id":596,"source_url":597,"license_code":280,"credit_html":598,"title":599,"description":600,"author":284,"original_width":601,"original_height":602},74466,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177679","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177679\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-272657.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Christoff Mine, Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-212307.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.4 x 3 x 1.7 cm.\u003C\u002Fdd>\n\u003Cdd>A striking set of three beautiful Dioptase crystals, surrounded by a dusting of Plancheite, on matrix. The Dioptases have excellent deep green color and superb luster. The largest of the crystals is 1.6 cm. Rarely do you have Dioptase crystals so isolated and so well defined. A terrific, aesthetic specimen. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",362,499,{"id":604,"source_url":605,"license_code":280,"credit_html":606,"title":607,"description":608,"author":284,"original_width":602,"original_height":286},74467,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177702","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177702\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-273383.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kimbedi, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPool_Department\" class=\"extiw\" title=\"en:Pool Department\">Pool Region\u003C\u002Fa>, Republic of Congo (Brazzaville) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-145535.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.7 x 4.6 x 3.6 cm.\u003C\u002Fdd>\n\u003Cdd>Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. The best of these specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen hosts sharp, rich emerald-green color Dioptase on rare contrasting soft blue color Plancheite. This find seemed to be somewhat limited, and hopefully will produce more of this superb Dioptase.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":610,"source_url":611,"license_code":280,"credit_html":612,"title":613,"description":614,"author":284,"original_width":422,"original_height":615},74468,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177725","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177725\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-Quartz-278367.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Kaokoveld Plateau, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKunene_Region\" class=\"extiw\" title=\"en:Kunene Region\">Kunene Region\u003C\u002Fa>, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30243.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.6 x 4.4 x 3.8 cm.\u003C\u002Fdd>\n\u003Cdd>Scintillating, gemmy, emerald-green dioptase crystals to about 6 mm are very richly and aesthetically nestled on contrasting powder-blue plancheite on a 3-dimensional quartz matrix. Lovely contrasting colors in this fine piece. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",450,{"id":617,"source_url":618,"license_code":280,"credit_html":619,"title":620,"description":621,"author":284,"original_width":373,"original_height":622},74469,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442977","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442977\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-31edd103db.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Pimbi, D�joue River, The Republic of Congo\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 15.3 x 14.2 x 3.2 cm\n\u003Cdl>\u003Cdt>Dioptase on Plancheite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a huge plate of matrix-bound dioptase crystals perched on contrasting matrix of rolling blue plancheite (and in itself a fabulously rich specimen for this species!). This is classic material found here about 15 years ago, although seldom seen in specimens so large and showy. The crystals here reach fully 2 cm in size, many of them doubly terminated. Most are pristine, though a few have minor damage, insignificant in context. Part of the reason large plates from this lcoality are so rare is that they form upon crusts inside cavities in the rock, and generally these are small and tight pockets. Hence, large pieces like this are difficult to get out. This piece is not repaired, but it has been stabilized with glue on the backside to ensure it stays together, once it was removed from the rock matrix behind it. For the price, you seldom get so much dioptase bang for the buck (certainly not from Tsumeb!), and these crystals in form plus overall matrix appearance are so very different from anything you see from Tsumeb. I like knowing that, for the price, you can get among the best of this locality for the cost of a frankly mediocre large Tsumeb specimen...that translates to a much more significant rock fo ryour money invested, a good quality !\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",356,{"id":624,"source_url":625,"license_code":280,"credit_html":626,"title":627,"description":621,"author":284,"original_width":373,"original_height":628},74470,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442978","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442978\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Plancheite-31edd103da.jpg",334,{"id":630,"source_url":631,"license_code":280,"credit_html":632,"title":633,"description":634,"author":284,"original_width":422,"original_height":635},74471,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464709","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464709\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Malachite-Plancheite-t06-309a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMalachite\" class=\"extiw\" title=\"en:Malachite\">Malachite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPlancheite\" class=\"extiw\" title=\"en:Plancheite\">Plancheite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tantara Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FShinkolobwe\" class=\"extiw\" title=\"en:Shinkolobwe\">Shinkolobwe\u003C\u002Fa>, Central area, Katanga Copper Crescent, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKatanga\" class=\"extiw\" title=\"en:Katanga\">Katanga (Shaba)\u003C\u002Fa>, Democratic Republic of Congo (Zaïre) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4340.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 11.3 x 10 x 5 cm\n\u003Cdl>\u003Cdt>Primary Malachite, Plancheite on Quartz on Dioptase\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a visually striking specimen that starts out with a rim of emerald green, dioptase, to .7 cm across; on which are draped sparkling, snow white, spherical clusters of crystallized quartz, to 2.0 cm across. Perched aesthetically on the quartz are two rosettes of deep green, lustrous, PRIMARY MALACHITE crystals! This is very rare, especially on matrix, and even more so on matrix of dioptase! The malachite crystals are thin, elongated \"rectangles\" arranged in radiating 4-cm-wide clusters like a fanspray. i have never seen a specimen like this, and with the white quartz in between the two green minerals, no less! The side is rimmed with minor bits of plancheite, a copper silicate. The color contrasts on this specimen are just superb. The 3-dimensionality is impressive. Overall, its big, unique, and incredibly beautiful. I have NEVER seen a piece like this. IF YOU ARE TEMPTED, IT IS MUCH, MUCH BETTER IN PERSON!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",478,{"id":637,"source_url":638,"license_code":280,"credit_html":639,"title":640,"description":641,"author":284,"original_width":422,"original_height":642},79241,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148665","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148665\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Shattuckite-Quartz-165719.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FShattuckite\" class=\"extiw\" title=\"en:Shattuckite\">Shattuckite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sanda Mine, Mindouli, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPool_Department\" class=\"extiw\" title=\"en:Pool Department\">Pool Region\u003C\u002Fa>, Republic of Congo (Brazzaville) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4308.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.5 x 6.4 x 4.4 cm.\u003C\u002Fdd>\n\u003Cdd>A fascinating AND pretty copper-mineral combo from Congo. On the side of a shallow pocket, on a layer of shiny smoky quartz crystals, is a cluster of superb dioptase crystals (the long one measures 1.8 cm) in the form of a cross. The isolation of this cluster makes it really jump out at you - MUCH more so than in the photos! Nearby are patches of rare shattuckite (Copper Silicate Hydroxide), with turquoise-blue color.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",522,{"id":644,"source_url":645,"license_code":280,"credit_html":646,"title":647,"description":648,"author":284,"original_width":649,"original_height":373},79254,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450242","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450242\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chrysocolla-Dioptase-Shattuckite-k-124c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChrysocolla\" class=\"extiw\" title=\"en:Chrysocolla\">Chrysocolla\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FShattuckite\" class=\"extiw\" title=\"en:Shattuckite\">Shattuckite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Otjikotu, Kaokoveld, Kunene, Namibia\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.5 x 4.0 x 2.5 cm\n\u003Cdl>\u003Cdt>Dioptase on Shattuckite in Chrysocolla geode\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Another exceptional shattuck\u002Fdiop combo! These are very rare, and I have never seen but a few of them out of the small batches of the last few years trickling out of this locality. This piece has a rather large vug, and thus tons of shattuckite for the money...its probably more valuable, if less unique, split in half to sell as two shattuckite specimens. However, I think the novelty value of such a large intact pocket is worth keeping intact, even if its harder to photograph accurately. In person, its really impressive for the depth and rolling interior that is hard to show here\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",314,[651,657],{"id":652,"url":653,"label":654,"formula":655,"spacegroup":656,"year":225},3830,"\u002Fcif\u002F3830.cif","Belokoneva 2002","Cu Si O4 H2","R -3",{"id":658,"url":659,"label":660,"formula":655,"spacegroup":656,"year":182},3831,"\u002Fcif\u002F3831.cif","Ribbe 1977",[662,663,664,665,666,667,668,669,670,671,672,673,674,675,676,677,678,679,680,681,682,683,684],"Achirit","Achirita","Achirite","Achrit","Achrita","Achrite","Aschirit","Aschirita","Aschirite","Ashirite","Dioptasit","Dioptasita","Dioptasite","Emerald-copper","Emerald-malachite","Emeraudine","Kirghisit","Kirghisita","Kirghisite","Kupfer-Smaragd","Kupfergrün crystallisirtes","Rhombohedral Emerald Malachite","Smaragdo-chalcite (of Mohs)",[686,690,694,698,702,706,711,717,721,725,729,732,736,740,752,755,758,762,766,770,773,776,779,783,786,791,795,798,801,804,808,811,818,821,824,827,830,834,838,843,847,850,853,856,859],{"lang":687,"names":688},"af",[689],"Dioptaas",{"lang":691,"names":692},"ar",[693],"دیوبتاز",{"lang":695,"names":696},"az",[697],"dioptaz",{"lang":699,"names":700},"bg",[701],"Диоптаз",{"lang":703,"names":704},"ca",[705],"dioptasa",{"lang":707,"names":708},"cs",[709,710],"dioptas","kirgizit",{"lang":712,"names":713},"de",[714,715,716],"Dioptas","Kieselkupfersmaragd","Kupfersmaragd",{"lang":718,"names":719},"el",[720],"Διοπτάσιος",{"lang":722,"names":723},"es",[724],"Dioptasa",{"lang":726,"names":727},"et",[728],"dioptaas",{"lang":730,"names":731},"eu",[724],{"lang":733,"names":734},"fa",[735],"دیوپتاز",{"lang":737,"names":738},"fi",[739],"dioptaasi",{"lang":741,"names":742},"fr",[743,744,745,746,747,748,749,750,751],"achirite","achrite","aschirite","CuSiO3,H2O","dioptase","dioptasite","kirghisite","rhombohedral emerald malachite","smaragdo-chalcite",{"lang":753,"names":754},"hr",[714],{"lang":756,"names":757},"it",[380],{"lang":759,"names":760},"ja",[761],"翠銅鉱",{"lang":763,"names":764},"kk",[765],"Аширит",{"lang":767,"names":768},"kk-arab",[769],"اشىيرىيت",{"lang":771,"names":772},"kk-cn",[769],{"lang":774,"names":775},"kk-cyrl",[765],{"lang":777,"names":778},"kk-kz",[765],{"lang":780,"names":781},"kk-latn",[782],"Aşïrït",{"lang":784,"names":785},"kk-tr",[782],{"lang":787,"names":788},"ko",[789,790],"디옵테이즈","취동광",{"lang":792,"names":793},"mk",[794],"диоптаз",{"lang":796,"names":797},"nb",[709],{"lang":799,"names":800},"nl",[728],{"lang":802,"names":803},"nn",[709],{"lang":805,"names":806},"pl",[807],"Dioptaz",{"lang":809,"names":810},"ro",[807],{"lang":812,"names":813},"ru",[794,814,815,816,817],"киргизит","медный изумруд","пхирит","пширит",{"lang":819,"names":820},"sh",[714],{"lang":822,"names":823},"sk",[714],{"lang":825,"names":826},"sr",[794],{"lang":828,"names":829},"sv",[709],{"lang":831,"names":832},"uk",[833],"діоптаз",{"lang":835,"names":836},"uz",[837],"Ashirit",{"lang":839,"names":840},"zh",[841,842],"綠銅礦","青銅礦",{"lang":844,"names":845},"zh-cn",[846],"青铜矿",{"lang":848,"names":849},"zh-hans",[846],{"lang":851,"names":852},"zh-hant",[842],{"lang":854,"names":855},"zh-hk",[842],{"lang":857,"names":858},"zh-sg",[846],{"lang":860,"names":861},"zh-tw",[842],"Q413369",{"history":864,"applications":868},{"markdown":865,"model_version":866,"prompt_version":867,"reviewed_at":11},"Late in the 18th century, copper miners at the Altyn-Tyube mine in what is now Kazakhstan thought they had found emerald[1]. The crystals were a striking transparent green — the exact colour and clarity a Russian buyer would expect from emerald. Specimens were dispatched to Moscow for analysis[1].\n\nThe verdict came back unflattering. The green stone had a Mohs hardness — its resistance to scratching — of only about 5, soft enough to mark with a steel knife. Emerald sits much higher at 8[1]. That difference alone ruled out emerald. In 1797, the French mineralogist René Just Haüy concluded the Altyn-Tyube material was an unknown species and named it **dioptase**[2].\n\nThe name comes from the Greek *dia* — through — and a verb meaning *to see*[2]. It points to the crystal's clearest peculiarity. Its cleavage planes — the flat surfaces along which it would split if struck — are visible *through* the transparent body of an unbroken specimen[2]. The viewer can see, from the outside, where the stone would prefer to break.","claude-opus-4-7","1.7.0",{"markdown":869,"model_version":866,"prompt_version":867,"reviewed_at":11},"Dioptase has no industrial role. It is a copper-bearing mineral, but it occurs in quantities far too small, and in deposits far too scattered, to interest any copper smelter. What demand exists is from collectors.\n\nAmong mineral collectors, dioptase is prized for the deep emerald-green of its crystals[1]. The Tsumeb mine in Namibia has long been considered the source of the finest specimens[1]. The original locality at Altyn-Tyube in Kazakhstan, several sites in Arizona, and deposits in the Republic of the Congo also feed the cabinet trade[1].\n\nThe mineral is occasionally cut into small emerald-like gems[2], but two properties hold it back from any serious place in jewellery. Its Mohs hardness of 5 — about the hardness of tooth enamel — means it scratches easily in everyday wear. Its perfect cleavage — the tendency to split along flat internal planes — runs in three directions, so a sharp knock can break the stone open. Faceted dioptase is therefore a specialist gem, kept for display rather than rings.\n\nA more curious use is as a green pigment: pulverised crystals yield an intense colour[3]. The powder is toxic because of its copper content, and accidental ingestion can cause serious harm[3]. The toxicity has kept the pigment use marginal."]