[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1818":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":16,"elements":17,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":40,"c":42,"alpha":40,"beta":40,"gamma":40,"aerror":43,"berror":11,"cerror":44,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":44,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":46,"hmin":47,"hmax":48,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":50,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":52,"commentluster":11,"diapheny":53,"streak":54,"colour":55,"commentcolor":11,"colors":56,"streak_colors":61,"luminescence":11,"uv":62,"cleavage":63,"cleavagetype":64,"fracturetype":11,"tenacity":65,"commentbreak":11,"opticaltype":66,"opticalsign":67,"opticalalpha":40,"opticalalpha2":40,"opticalalphaerror":11,"opticalbeta":40,"opticalbeta2":40,"opticalbetaerror":11,"opticalgamma":40,"opticalgamma2":40,"opticalgammaerror":11,"opticalomega":68,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":69,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":40,"optical2vcalc2":40,"optical2vcalcerror":11,"optical2vmeasured":40,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":70,"rimax":71,"opticaldispersion":11,"opticalpleochroism":72,"opticalpleochorismdesc":11,"opticalbirefringence":73,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":74,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":75,"occurrence":76,"otheroccurrence":11,"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":140,"confused_with":149,"type_localities":150,"occurrence_total":157,"citations":158,"images":258,"structures":332,"synonyms":349,"language_names":350,"wikidata_qid":381,"texts":382},1818,"1:1:1818:6","b489739f-51de-46ca-9561-6e9bf5358379","Hardystonite","Hdy",0,"mineral",null,29310,2363,false,"Ca\u003Csub>2\u003C\u002Fsub>Zn[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","Ca\u003Csub>2\u003C\u002Fsub>ZnSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>",[18,19,20,21],"Ca","Si","Zn","O",[18,19,20,21],[20],",Al,Fe,Mn,Pb,Mg,Na,,","14.7.14",[27,28],"APPROVED","GRANDFATHERED",1899,"1899","9","B","10","55","4","2","Tetragonal",24,146,"0","7.8287","5.0140",16,2,"Large, rough crystals rare embedded in calcite or other matrix.","In banded ore, forming grains averaging about a millimeter in diameter.",3,4,"3.396","3.443","3.42","Adamantine,Resinous,Dull","Opaque","White","Light brownish white, pale greyish-white, whitish, very pale pinkish",[57,58,59,60],"white","gray","pink","brown",[57],"Dull persistent purple to blue (SW UV); blue (LW UV).","Good on {001}; poor on {100} and {110}.","Distinct\u002FGood","brittle","Uniaxial","-","1.672","1.661",1.661,1.672,"Non-pleochroic","0.009","parallel","None, but a common constituent of zinc rich slags from smelting processes.","Occurs in a metamorphosed zinc-manganese-iron silicate-oxide orebody.","Harvard University, Cambridge, Massachusetts, USA, numbers 113594, 113608.","In daylight, natural hardystonite is a very non-descript massive ashen white mineral distinguished from massive calcite by a lack of cleavage and a somewhat greasy luster. (Note: Many photographers over-expose images of hardystonite to accentuate the b...","Named in 1899 by John E. Wolff after Hardyston Township, Sussex County, New Jersey, USA, locality of the Franklin orebody prior to incorporation of Franklin Borough in 1913. Hardyston Township surrounds the borough of Franklin today.","2025-09-15 14:38:22",[],[83,93,102,108,113,119,127,133],{"id":84,"name":85,"entrytype":9,"csystem":37,"ima_formula":86,"mindat_formula":87,"hmin":88,"hmax":89,"dmeas":90,"dcalc":91,"primary_image_id":92},70,"Åkermanite","Ca\u003Csub>2\u003C\u002Fsub>MgSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Mg[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]",5,6,"2.944","2.922",473,{"id":94,"name":95,"entrytype":9,"csystem":37,"ima_formula":96,"mindat_formula":97,"hmin":98,"hmax":88,"dmeas":99,"dcalc":100,"primary_image_id":101},39212,"Alumoåkermanite","(Ca,Na)\u003Csub>2\u003C\u002Fsub>(Al,Mg,Fe\u003Csup>2+\u003C\u002Fsup>)(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)","(CaNa)Al[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]",4.5,"2.96","3.00",997,{"id":103,"name":104,"entrytype":9,"csystem":37,"ima_formula":105,"mindat_formula":106,"hmin":88,"hmax":88,"dmeas":11,"dcalc":107,"primary_image_id":11},54030,"Bennesherite","Ba\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ba\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","4.39",{"id":109,"name":110,"entrytype":9,"csystem":37,"ima_formula":11,"mindat_formula":111,"hmin":98,"hmax":88,"dmeas":11,"dcalc":112,"primary_image_id":11},471953,"Ferroåkermanite","Ca\u003Csub>2\u003C\u002Fsub>Fe[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","3.20",{"id":114,"name":115,"entrytype":9,"csystem":37,"ima_formula":116,"mindat_formula":117,"hmin":88,"hmax":89,"dmeas":40,"dcalc":40,"primary_image_id":118},1668,"Gehlenite","Ca\u003Csub>2\u003C\u002Fsub>Al(SiAl)O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Al[AlSiO\u003Csub>7\u003C\u002Fsub>]",9727,{"id":120,"name":121,"entrytype":9,"csystem":37,"ima_formula":122,"mindat_formula":123,"hmin":88,"hmax":88,"dmeas":124,"dcalc":125,"primary_image_id":126},1769,"Gugiaite","Ca\u003Csub>2\u003C\u002Fsub>BeSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Be[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","3.0336","3.03",10562,{"id":128,"name":129,"entrytype":9,"csystem":37,"ima_formula":130,"mindat_formula":131,"hmin":88,"hmax":88,"dmeas":11,"dcalc":132,"primary_image_id":11},47040,"Hydroxylgugiaite","(Ca\u003Csub>3\u003C\u002Fsub>◻)\u003Csub>E4\u003C\u002Fsub>(Si\u003Csub>3.5\u003C\u002Fsub>Be\u003Csub>2.5\u003C\u002Fsub>)\u003Csub>E6\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub>","(Ca,◻)\u003Csub>2\u003C\u002Fsub>(Si,Be)[(Be,Si)\u003Csub>2\u003C\u002Fsub>O\u003Csub>5.5\u003C\u002Fsub>(OH)\u003Csub>1.5\u003C\u002Fsub>]","2.79",{"id":134,"name":135,"entrytype":9,"csystem":37,"ima_formula":136,"mindat_formula":137,"hmin":138,"hmax":138,"dmeas":40,"dcalc":139,"primary_image_id":11},7202,"Okayamalite","Ca\u003Csub>2\u003C\u002Fsub>B\u003Csub>2\u003C\u002Fsub>SiO\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>B[BSiO\u003Csub>7\u003C\u002Fsub>]",5.5,"3.30",[141],{"id":142,"name":143,"entrytype":9,"csystem":144,"ima_formula":145,"mindat_formula":145,"hmin":89,"hmax":89,"dmeas":146,"dcalc":147,"primary_image_id":148},1708,"Glaucochroite","Orthorhombic","CaMn\u003Csup>2+\u003C\u002Fsup>(SiO\u003Csub>4\u003C\u002Fsub>)","3.407","3.465",10023,[],[151],{"id":152,"txt":153,"latitude":154,"longitude":155,"country":156},8541,"Franklin Mine, Franklin, Sussex County, New Jersey, USA",41.1158333,-74.5875,"USA",18,[159,162,167,171,176,180,185,190,195,199,203,207,212,216,220,225,229,234,239,244,248,253],{"id":160,"year":29,"html":161,"doi":11},16111427,"Wolff, J.E. (1899) On hardystonite, a new calcium-zinc silicate from Franklin Furnace, New Jersey. Proceedings of the American Academy of Arts and Sciences 34, 479-481.",{"id":163,"year":164,"html":165,"doi":166},102538,1900,"Wolff, John E.; Melczer, G. (1900) Hardystonit und Zink-Schefferit von Franklin Furnace, New Jersey. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  33 (1). 147-151 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1900.33.1.147'>doi:10.1524\u002Fzkri.1900.33.1.147\u003C\u002Fa>","10.1524\u002Fzkri.1900.33.1.147",{"id":168,"year":164,"html":169,"doi":170},102485,"Wolff, J. E. (1900) Ueber Hardystonit, ein neues Kalk-Zinksilicat von Franklin Furnace, New Jersey. \u003Ci>Zeitschrift für Krystallographie und Mineralogie\u003C\u002Fi>,  32 (1-6). 1-3 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1900.32.1.1'>doi:10.1524\u002Fzkri.1900.32.1.1\u003C\u002Fa>","10.1524\u002Fzkri.1900.32.1.1",{"id":172,"year":173,"html":174,"doi":175},104342,1930,"Warren, Β.E.; Trautz, О.B. (1930) The Structure of Hardystonite Ca2ZnSi2O7. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  75 (1). 525-528 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1515\u002Fzkri-1930-0136'>doi:10.1515\u002Fzkri-1930-0136\u003C\u002Fa>","10.1515\u002Fzkri-1930-0136",{"id":177,"year":178,"html":179,"doi":11},16111429,1935,"Palache, C. (1935) USGS PP 180: 94.",{"id":181,"year":182,"html":183,"doi":184},107906,1969,"LOUSNATHAN, S. JOHN (1969) Refinement of the crystal structure of hardystonite, Ca\u003Csub>2\u003C\u002Fsub>ZnSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  130 (1-6). 427-437 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1969.130.16.427'>doi:10.1524\u002Fzkri.1969.130.16.427\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol130\u002FZK130_427.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1969.130.16.427",{"id":186,"year":187,"html":188,"doi":189},342460,1988,"Sharma, Shiv K., Yoder, H.S., Matson, Dean W. (1988) Raman study of some melilites in crystalline and glassy states. \u003Ci>Geochimica et Cosmochimica Acta\u003C\u002Fi>,  52 (8). 1961-1967 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0016-7037(88)90177-9'>doi:10.1016\u002F0016-7037(88)90177-9\u003C\u002Fa>","10.1016\u002F0016-7037(88)90177-9",{"id":191,"year":192,"html":193,"doi":194},127004,1992,"Shannon, Robert D., Iishi, Kazuaki, Allik, Toomas H., Liebertz, Josef, Rossman, George R. (1992) Dielectric constants of BaO and melilites and the oxide additivity rule. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  4 (6) 1241-1250 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F4\u002F6\u002F1241'>doi:10.1127\u002Fejm\u002F4\u002F6\u002F1241\u003C\u002Fa>","10.1127\u002Fejm\u002F4\u002F6\u002F1241",{"id":196,"year":197,"html":198,"doi":11},16111430,1995,"Dunn, Pete J. (1995): Pt3: 411-412.",{"id":200,"year":201,"html":202,"doi":11},16111434,1997,"Mendenbach, O., Shannon, R.D. (1997) Refractive indices and optical dispersion of 103 synthetic and mineral oxides and silicates measured by a small-prism technique. Journal of the Optical Society of America B, 14, 3299-3318.",{"id":204,"year":201,"html":205,"doi":206},15008440,"Kakitani, Satoru; Ishii, Hiroshi; Yamaguchi, Kazuhiro (1997) Synthesis of Solid Solutions Based on the Akermanite and\u002For Hardystonite Systems and Their Fluorescence Properties. \u003Ci>Japanese Journal of Applied Physics\u003C\u002Fi>,  36. 6793-6797 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1143\u002Fjjap.36.6793'>doi:10.1143\u002Fjjap.36.6793\u003C\u002Fa>","10.1143\u002Fjjap.36.6793",{"id":208,"year":209,"html":210,"doi":211},639080,2000,"Fredericci, C., Zanotto, E.D., Ziemath, E.C. (2000) Crystallization mechanism and properties of a blast furnace slag glass. \u003Ci>Journal of Non-Crystalline Solids\u003C\u002Fi>,  273 (1) 64-75 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0022-3093(00)00145-9'>doi:10.1016\u002Fs0022-3093(00)00145-9\u003C\u002Fa>","10.1016\u002Fs0022-3093(00)00145-9",{"id":213,"year":214,"html":215,"doi":11},16964742,2001,"(2001) Hardystonite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fhardystonite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":217,"year":214,"html":218,"doi":219},394421,"Bindi, Luca, Czank, Michael, Röthlisberger, François, Bonazzi, Paola (2001) Hardystonite from Franklin Furnace: A natural modulated melilite. \u003Ci>American Mineralogist\u003C\u002Fi>,  86 (5) 747-751 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2001-5-615'>doi:10.2138\u002Fam-2001-5-615\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol86\u002FAM86_747.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2001-5-615",{"id":221,"year":222,"html":223,"doi":224},128165,2002,"Gaft, Michael, Seigel, Harold, Panczer, Gerard, Reisfeld, Renata (2002) Laser-induced time-resolved luminescence spectroscopy of Pb2+ in minerals. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  14 (6) 1041-1048 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2002\u002F0014-1041'>doi:10.1127\u002F0935-1221\u002F2002\u002F0014-1041\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2002\u002F0014-1041",{"id":226,"year":222,"html":227,"doi":228},10559820,"Shannon, Robert D., Shannon, Ruth C., Medenbach, Olaf, Fischer, Reinhard X. (2002) Refractive Index and Dispersion of Fluorides and Oxides. \u003Ci>Journal of Physical and Chemical Reference Data\u003C\u002Fi>,  31 (4) 931-970 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1063\u002F1.1497384'>doi:10.1063\u002F1.1497384\u003C\u002Fa>","10.1063\u002F1.1497384",{"id":230,"year":231,"html":232,"doi":233},153114,2004,"Haussühl, S.; Liebertz, J. (2004) Elastic and thermoelastic properties of synthetic Ca2MgSi2O7 (åkermanite) and Ca2ZnSi2O7 (hardystonite). \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  31 (8). 565-567 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-004-0416-9'>doi:10.1007\u002Fs00269-004-0416-9\u003C\u002Fa>","10.1007\u002Fs00269-004-0416-9",{"id":235,"year":236,"html":237,"doi":238},4199773,2005,"Wu, Chengtie, Chang, Jiang, Zhai, Wanyin (2005) A novel hardystonite bioceramic: preparation and characteristics. \u003Ci>Ceramics International\u003C\u002Fi>, 31. 27-31 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.ceramint.2004.02.008'>doi:10.1016\u002Fj.ceramint.2004.02.008\u003C\u002Fa>","10.1016\u002Fj.ceramint.2004.02.008",{"id":240,"year":241,"html":242,"doi":243},4101790,2011,"Dondi, Michele, Zanelli, Chiara, Ardit, Matteo, Cruciani, Giuseppe (2011) Co-Doped Hardystonite, Ca2(Zn,Co)Si2O7, a New Blue Ceramic Pigment. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 94 (4). 1025-1030 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1551-2916.2010.04203.x'>doi:10.1111\u002Fj.1551-2916.2010.04203.x\u003C\u002Fa>","10.1111\u002Fj.1551-2916.2010.04203.x",{"id":245,"year":241,"html":246,"doi":247},4101843,"Yao, Shanshan, Xue, Lihong, Yan, Youwei, Yan, Mifang (2011) Preparation and Luminescence Property of Red-Emitting Hardystonite Phosphors by Near-Ultraviolet Irradiation. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 94 (5). 1477-1482 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1551-2916.2010.04261.x'>doi:10.1111\u002Fj.1551-2916.2010.04261.x\u003C\u002Fa>","10.1111\u002Fj.1551-2916.2010.04261.x",{"id":249,"year":250,"html":251,"doi":252},5099319,2012,"Becker, Petra, Libowitzky, Eugen, Bohatý, Ladislav, Liebertz, Josef, Rhee, Hanjo, Eichler, Hans-Joachim, Kaminskii, Alexander A. (2012) Temperature-dependent thermo-mechanical and Raman spectroscopy study of the SRS-active melilite-type crystal Ca2ZnSi2O7 (hardystonite) at its incommensurate-commensurate phase transition. \u003Ci>physica status solidi (a)\u003C\u002Fi>, 209 (2). 327-334 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fpssa.201127415'>doi:10.1002\u002Fpssa.201127415\u003C\u002Fa>","10.1002\u002Fpssa.201127415",{"id":254,"year":255,"html":256,"doi":257},16948565,2023,"Youness, Rasha A., Al-Ashkar, Emad, Taha, Mohammed A. (2023) Role of porosity in the strength, dielectric properties, and bioactivity of hardystonite ceramic material for use in bone tissue engineering applications. \u003Ci>Ceramics International\u003C\u002Fi>,  49 (24) 40520-40531 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.ceramint.2023.10.029'>doi:10.1016\u002Fj.ceramint.2023.10.029\u003C\u002Fa>","10.1016\u002Fj.ceramint.2023.10.029",[259,269,279,288,298,305,315,323],{"id":260,"source_url":261,"license_code":262,"credit_html":263,"title":264,"description":265,"author":266,"original_width":267,"original_height":268},10854,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130451256","CC BY 4.0","Henk Smeets – tomeikminerals.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130451256\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite4664-9.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHardystonite\" class=\"extiw\" title=\"en:Hardystonite\">Hardystonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 3 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Lichtloch 25, Hettstedt, Mansfeld-Südharz, Saxony-Anhalt, Germany\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Henk Smeets – tomeikminerals.com",1920,1265,{"id":270,"source_url":271,"license_code":272,"credit_html":273,"title":274,"description":275,"author":276,"original_width":277,"original_height":278},10856,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163485720","CC0 1.0","Shannon Heinle, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163485720\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite (GeoDIL number - 1969).jpg","Hardystonite is a silicate with the chemical formula Ca2ZnSi2O7. Hardystonite will fluoresce a dark purple under short-wave ultraviolet light. Hardystonite is only found at Franklin, Sussex Co., New Jersey, USA. This sample is approximately 11 cm.","Shannon Heinle",2332,1892,{"id":280,"source_url":281,"license_code":282,"credit_html":283,"title":284,"description":285,"author":286,"original_width":287,"original_height":287},10852,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956102","Public domain","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956102\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite with franklinite Calcium zinc silicate Franklin, Sussex County, New Jersey 2773.jpg","These mineral images are free to use how you wish.","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com",700,{"id":289,"source_url":290,"license_code":291,"credit_html":292,"title":293,"description":294,"author":295,"original_width":296,"original_height":297},5852,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149770","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149770\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite-Clinohedrite-Calcite-170572.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHardystonite\" class=\"extiw\" title=\"en:Hardystonite\">Hardystonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FClinohedrite\" class=\"extiw\" title=\"en:Clinohedrite\">Clinohedrite\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\u002FWillemite\" class=\"extiw\" title=\"en:Willemite\">Willemite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklin_Mine\" class=\"extiw\" title=\"en:Franklin Mine\">Franklin Mine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklin\" class=\"extiw\" title=\"en:Franklin\">Franklin\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-8541.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.0 x 6.0 x 3.2 cm.\u003C\u002Fdd>\n\u003Cdd>A CLASSIC, multi-fluorescent specimen with 4 minerals from the famous Franklin Mine containing: BLUE hardystonite (ultra-rare Type Locality); ORANGE clinohedrite (ultra-rare Type Locality); RED calcite; and GREEN willemite from the Parker Shaft. This specimen is particularly rich in hardystonite. Ex George Elling Collection, a noted Franklin\u002FSterling Hill collector.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",550,512,{"id":299,"source_url":300,"license_code":291,"credit_html":301,"title":302,"description":294,"author":295,"original_width":303,"original_height":304},5853,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149771","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149771\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite-Clinohedrite-Calcite-170573.jpg",596,546,{"id":306,"source_url":307,"license_code":308,"credit_html":309,"title":310,"description":311,"author":312,"original_width":313,"original_height":314},5856,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15236859","CC BY 3.0","Stephen E. Fritz, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15236859\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bustamite, Hardystonite, Calcite, Willemite, Clinohedrite-179369.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBustamite\" class=\"extiw\" title=\"en:Bustamite\">Bustamite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHardystonite\" class=\"extiw\" title=\"en:Hardystonite\">Hardystonite\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\u002FWillemite\" class=\"extiw\" title=\"en:Willemite\">Willemite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FClinohedrite\" class=\"extiw\" title=\"en:Clinohedrite\">Clinohedrite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Artificial light and Short Wave UV of bustamite (no fluorescence), hardystonite (deep blue), calcite (red), willemite (green) and clinohedrite (dim orange). Total specimen size approximately 20 cm x 15 cm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Stephen E. Fritz",530,1024,{"id":316,"source_url":317,"license_code":282,"credit_html":318,"title":319,"description":320,"author":321,"original_width":314,"original_height":322},10853,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=20602303","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=20602303\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite, Willemite, Franklinite-446841.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHardystonite\" class=\"extiw\" title=\"en:Hardystonite\">Hardystonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWillemite\" class=\"extiw\" title=\"en:Willemite\">Willemite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklinite\" class=\"extiw\" title=\"en:Franklinite\">Franklinite\u003C\u002Fa> (Size: 8 x 12 x 5½ cm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Pretty much a solid chunk of hardystonite with some franklinite and willemite inclusions.\u003Cbr>Regarding the colors: I’m not a UV photographer. I had to use Photoshop to make things visible. In reality, the hardystonite isn’t very bright (with my UV source), so this photo is brighter than what I actually “saw”. Also somewhat too blue.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Modris Baum",568,{"id":324,"source_url":325,"license_code":272,"credit_html":326,"title":327,"description":328,"author":329,"original_width":330,"original_height":331},10855,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163476067","Nessa Eull, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163476067\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hardystonite with willemite (GeoDIL number - 276).jpg","These samples from Franklin, New Jersey, USA are mostly brown hardystonite Ca2ZnSi2O7 with lighter colored veins of willemite, Zn2SiO4. Hardystonite is a rare mineral related to gehlenite. It is popular with museums and mineral collectors because it fluoresces dark purple under short-wave ultraviolet light. The smaller specimen is about 5 cm across.","Nessa Eull",3040,2016,[333,339,344],{"id":334,"url":335,"label":336,"formula":337,"spacegroup":338,"year":214},5904,"\u002Fcif\u002F5904.cif","Bindi 2001","(Ca1.86 Na.14) Zn.85 Al.07 Mg.03 Mn.04 Fe.02 Si2 O7","P -4 21 m",{"id":340,"url":341,"label":342,"formula":343,"spacegroup":338,"year":182},5905,"\u002Fcif\u002F5905.cif","Louisnathan 1969","Ca2 Zn Si2 O7",{"id":345,"url":346,"label":347,"formula":348,"spacegroup":338,"year":173},5906,"\u002Fcif\u002F5906.cif","Warren 1930","Ca2 Si2 Zn O7",[],[351,355,359,363,366,370,373,377],{"lang":352,"names":353},"ca",[354],"hardystonita",{"lang":356,"names":357},"de",[358],"Hardystonit",{"lang":360,"names":361},"es",[362],"Hardystonita",{"lang":364,"names":365},"eu",[362],{"lang":367,"names":368},"fr",[369],"hardystonite",{"lang":371,"names":372},"it",[7],{"lang":374,"names":375},"nl",[376],"hardystoniet",{"lang":378,"names":379},"uk",[380],"Гардистоніт","Q677580",{"history":11,"applications":11}]