[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1421":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":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":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":36,"dana8ed3":37,"dana8ed4":36,"csystem":38,"cclass":39,"spacegroup":40,"spacegroupset":41,"a":42,"b":43,"c":44,"alpha":41,"beta":45,"gamma":41,"aerror":40,"berror":39,"cerror":46,"alphaerror":11,"betaerror":39,"gammaerror":11,"va3":47,"z":48,"csmetamict":13,"commentcrystal":11,"twinning":49,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":50,"tlform":51,"hmin":52,"hmax":52,"hardtype":11,"vhnmin":41,"vhnmax":41,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":53,"dmeas2":53,"dcalc":41,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":54,"commentluster":55,"diapheny":56,"streak":57,"colour":58,"commentcolor":11,"colors":59,"streak_colors":62,"luminescence":11,"uv":11,"cleavage":63,"cleavagetype":64,"fracturetype":11,"tenacity":65,"commentbreak":11,"opticaltype":66,"opticalsign":67,"opticalalpha":68,"opticalalpha2":41,"opticalalphaerror":11,"opticalbeta":69,"opticalbeta2":41,"opticalbetaerror":11,"opticalgamma":70,"opticalgamma2":41,"opticalgammaerror":11,"opticalomega":41,"opticalomega2":41,"opticalomegaerror":11,"opticalepsilon":41,"opticalepsilon2":41,"opticalepsilonerror":11,"opticaln":41,"opticaln2":41,"opticalnerror":11,"optical2vcalc":71,"optical2vcalc2":41,"optical2vcalcerror":11,"optical2vmeasured":72,"optical2vmeasured2":41,"optical2vmeasurederror":11,"rimin":73,"rimax":74,"opticaldispersion":75,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":76,"otheroccurrence":11,"type_specimen_store":11,"description_short":77,"aboutname":78,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":79,"reviewed_at":11,"variety_of":11,"varieties":80,"group_members":81,"associates":82,"confused_with":107,"type_localities":109,"occurrence_total":114,"citations":115,"images":187,"structures":279,"synonyms":295,"language_names":298,"wikidata_qid":331,"texts":332},1421,"1:1:1421:8","e3c1a915-23df-48f2-944c-13f741a8f9e7","Eudidymite","Edy",0,"mineral",null,1969,false,"Na\u003Csub>2\u003C\u002Fsub>Be\u003Csub>2\u003C\u002Fsub>Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>Be\u003Csub>2\u003C\u002Fsub>Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20,21],"Be","Na","Si","O","H",[17,18,19,20,21],[17],",Al,Fe,Ca,,","14.3.6",[27,28],"APPROVED","GRANDFATHERED",1887,"1887","9","D","G","60","66","3","1","Monoclinic",5,10,"0","12.6188","7.3781","13.9940","103.762",9,1265.47,4,"Twins on {001} common. V-shaped (Swallowtwins) twin","Crystals tabular on (001), spherulitic, micaceous, coarse and granular,massive.","Tabular crystals, usually twinned on {001}",6,"2.55","Vitreous,Pearly","Pearly on cleavages","Transparent,Translucent","White","White, colorless",[60,61],"white","colorless",[60],"Perfect on {001}, imperfect on\u003Cmi>{_551}\u003C\u002Fmi>","Perfect","brittle","Biaxial","+","1.545","1.546","1.551","50","30",1.545,1.551,"r > v distinct","Nepheline syenite","During his visit in the summer of 1887 to Lille Arøya, Langesundsfjorden in Norway, the mineralogist Waldemar Christofer Brøgger (1851-1940) was shown an unknown mineral found by two local collectors. It was showed to be a new mineral and later describ...","From the Greek words for well and twinned, in allusion to its common occurrence in twins.","2025-08-11 12:14:20",[],[],[83,92,101],{"id":84,"name":85,"entrytype":9,"csystem":86,"ima_formula":87,"mindat_formula":88,"hmin":48,"hmax":89,"dmeas":90,"dcalc":41,"primary_image_id":91},216,"Ancylite-(Ce)","Orthorhombic","CeSr(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH) · H\u003Csub>2\u003C\u002Fsub>O","CeSr(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)·H\u003Csub>2\u003C\u002Fsub>O",4.5,"3.95",1336,{"id":93,"name":94,"entrytype":9,"csystem":38,"ima_formula":95,"mindat_formula":96,"hmin":97,"hmax":97,"dmeas":98,"dcalc":99,"primary_image_id":100},1002,"Chiavennite","CaMn\u003Csup>2+\u003C\u002Fsup>(BeOH)\u003Csub>2\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>13\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","CaMnBe\u003Csub>2\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>13\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",3,"2.64","2.657",5388,{"id":102,"name":103,"entrytype":9,"csystem":86,"ima_formula":15,"mindat_formula":14,"hmin":104,"hmax":104,"dmeas":105,"dcalc":41,"primary_image_id":106},1388,"Epididymite",5.5,"2.548",7882,[108],{"id":102,"name":103,"entrytype":9,"csystem":86,"ima_formula":15,"mindat_formula":14,"hmin":104,"hmax":104,"dmeas":105,"dcalc":41,"primary_image_id":106},[110],{"id":111,"txt":112,"latitude":11,"longitude":11,"country":113},230858,"Eudidymite locality, Lille Arøya, Larvik Commune, Vestfold, Norway","Norway",44,[116,119,123,127,131,136,140,144,149,152,156,160,164,168,173,178,182],{"id":117,"year":29,"html":118,"doi":11},16858960,"Brøgger, W.C. (1887) Om Eudidymit, et nyt norsk mineral. Foreløbig meddelelse [On Eudidymite, a new Norwegian mineral. Preliminary notice]. \u003Ci>Nyt magazin for naturvidenskaberne [New magazine for the natural sciences]\u003C\u002Fi>,  31. Christiania [Oslo]. 196-199",{"id":120,"year":121,"html":122,"doi":11},101839,1890,"Brøgger, Waldemar Christofer (1890) Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit- und Nephelinsyenite. \u003Ci>Zeitschrift für Krystallographie und Mineralogie\u003C\u002Fi>,  16 (1). 1-893",{"id":124,"year":125,"html":126,"doi":11},16860727,1899,"Flink, G (1899) Über einige seltene Mineralien aus der Gegend von Langesund in Norwegen [About some rare minerals from the Langesund area in Norway]. \u003Ci>Bulletin of the Geological Institution of the University of Upsala\u003C\u002Fi>,  4. 16-27 \u003Ca target='_blank' href='https:\u002F\u002Fpaleoarchive.com\u002Fliterature\u002FFlink1898-SelteneMineralienLangesund.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":128,"year":129,"html":130,"doi":11},17505522,1929,"Zachariasen, W.H. (1929) Die feinbäliche Relation zwischen Eudidymit und Epididymit [The fine relation between eudidymite and epididymite]. \u003Ci>Norsk Geologisk Tidsskrift [Norwegian Journal of Geology]\u003C\u002Fi>,  10 (3-4) 449-453 \u003Ca target='_blank' href='https:\u002F\u002Fforeninger.uio.no\u002Fngf\u002Fngt\u002Fpdfs\u002FNGT_10_3&4_449-453.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":132,"year":133,"html":134,"doi":135},104840,1933,"Palache, Charles (1933) Crystallographic Notes on Anapaite, Ainigmatite and Eudidymite. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  86 (1) 280 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1933.86.1.280'>doi:10.1524\u002Fzkri.1933.86.1.280\u003C\u002Fa>","10.1524\u002Fzkri.1933.86.1.280",{"id":137,"year":138,"html":139,"doi":11},521696,1947,"Ito, T. (1947) The structure of eudidymite (HNaBeSi3O8) \u003Ci>American Mineralogist\u003C\u002Fi>,  32 (7-8) 442-453 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM32\u002FAM32_442.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":141,"year":142,"html":143,"doi":11},16108805,1957,"Shilin, L.L., Semenov, E.I. (1957) The beryllium minerals epididymite and eudidymite in alkaline pegmatites of the Kola Peninsula. Doklady Akademii Nauk SSSR: 112(2): 325-328.",{"id":145,"year":146,"html":147,"doi":148},401232,1961,"Christophe-Michel-Lévy, Mireille (1961) Remarques sur l'épididymite. \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  84 (3) 320 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1961.5497'>doi:10.3406\u002Fbulmi.1961.5497\u003C\u002Fa>","10.3406\u002Fbulmi.1961.5497",{"id":150,"year":146,"html":151,"doi":11},16108806,"Pobedimskaya, E., Belov, N.V. (1961) About the crystal structure of eudidymite NaBeSi3O7OH. Doklady Akademii Nauk SSSR: 136(6): 1448-1450.",{"id":153,"year":154,"html":155,"doi":11},16856002,1963,"Nickel, E. (1963) Eudidymite from Seal Lake, Labrador, Newfoundland. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  7 (4) 643-649",{"id":157,"year":158,"html":159,"doi":11},525917,1972,"Fang, J. H., Robinson, Paul D., Ohya, Y. (1972) Redetermination of the crystal structure of eudidymite and its dimorphic relationship to epididylnite. \u003Ci>American Mineralogist\u003C\u002Fi>,  57 (9-10) 1345-1354 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM57\u002FAM57_1345.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":161,"year":162,"html":163,"doi":11},16108810,1979,"Ginzburg, A.I., Novikova, M.I., Gal’chenko, V.I. (1979) Eudidymite in fluorite-bertrandite-phenakite deposits. Doklady Acad. Sci. USSR Earth Sci. Sections: 246: 151-154.",{"id":165,"year":166,"html":167,"doi":11},16964173,2001,"(2001) Eudidymite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Feudidymite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":169,"year":170,"html":171,"doi":172},10559820,2002,"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":174,"year":175,"html":176,"doi":177},396083,2008,"Gatta, G. D., Rotiroti, N., McIntyre, G.J., Guastoni, A., Nestola, F. (2008) New insights into the crystal chemistry of epididymite and eudidymite from Malosa, Malawi: A single-crystal neutron diffraction study. \u003Ci>American Mineralogist\u003C\u002Fi>,  93 (7) 1158-1165 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2008.2965'>doi:10.2138\u002Fam.2008.2965\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol93\u002FAM93_1158.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam.2008.2965",{"id":179,"year":180,"html":181,"doi":11},15933240,2010,"Larsen, Alf Olav; Andersen, Frode; Dahlgren, Sven; Larsen, Knut Edvard; Burvald, Ingulv - \u003Ci>Ed.\u003C\u002Fi> (2010) \u003Ci>The Langesundsfjord\u003C\u002Fi> - History, geology, pegmatites, minerals. Bode Verlag Gmbh. 240 pp.",{"id":183,"year":184,"html":185,"doi":186},8511634,2020,"Vegas, Angel, Jenkins, H. Donald Brooke (2020) Rationalization of the crystal structure of eudidymite Na2Be2[Si[4]\n                  6O15]·H2O in light of the extended Zintl–Klemm concept. \u003Ci>Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials\u003C\u002Fi>, 76 (1). 41-46 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs205252061901549x'>doi:10.1107\u002Fs205252061901549x\u003C\u002Fa>","10.1107\u002Fs205252061901549x",[188,198,208,216,224,231,238,245,251,256,264,271],{"id":189,"source_url":190,"license_code":191,"credit_html":192,"title":193,"description":194,"author":195,"original_width":196,"original_height":197},8179,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572801","Public domain","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572801\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite - Mt Malosa, Zomba, Malawi.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa> - Locality: Mount Malosa, Zomba District, Malawi - The top edges are each 21 mm and the aggregate is up to 6 mm thick. The aggregate consists of thin lamellae.","Modris Baum",511,720,{"id":199,"source_url":200,"license_code":201,"credit_html":202,"title":203,"description":204,"author":205,"original_width":206,"original_height":207},8180,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148528","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148528\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-165229.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIlimaussaq_intrusive_complex\" class=\"extiw\" title=\"en:Ilimaussaq intrusive complex\">Ilimaussaq complex\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNarsaq\" class=\"extiw\" title=\"en:Narsaq\">Narsaq\u003C\u002Fa>, Kitaa (West Greenland) Province, Greenland (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4302.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.2 x 2.5 x 2.3 cm.\u003C\u002Fdd>\n\u003Cdd>A MAJOR and LARGE, pearlescent tan, triangular, platy crystal of this RARE sodium beryllium silicate from a classic, old locality. A sharp, aegirine needle aesthetically protrudes out of the crystal face. This is OLD, seldom available material. Ex Larry Conklin rarities collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",355,400,{"id":209,"source_url":210,"license_code":201,"credit_html":211,"title":212,"description":213,"author":205,"original_width":214,"original_height":215},8181,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154871","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154871\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-189252.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Stokkøya (Stokø; Stockö; Stocköe), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBreviksfjord\" class=\"extiw\" title=\"en:Breviksfjord\">Langesundsfjorden\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLarvik\" class=\"extiw\" title=\"en:Larvik\">Larvik\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVestfold\" class=\"extiw\" title=\"en:Vestfold\">Vestfold\u003C\u002Fa>, Norway (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-13699.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>An outstanding specimen of this rarity, probably collected in the late 1800s. The specimen has sharp crystals to 1.5 cm, translucent and lustrous, which are of exceptional quality. I have not cleaned it, so it retains an \"antique look\" , being a bit dirty, on purpose - and makes for a sharper contrast for the upright crystals to the smaller ones comprising matrix. Significant for both species and locale, this is also nicely displayable. Initially, because of the sharp crystals and overall quality, I and others I consulted here in the US thought (assumed!) this to be from Greenland. Thanks to Knut Eldjarn who corrected us that \"Stocko\" refers to this old locality in Norway, rather than a garbling of some location in Greenland as we assumed: You also list an old specimen of alleged \"Epididymite from Narssarsuk\". The label says \"Stockö\" which is one of the islands in the Langesundsfjord of Norway and the specimen resembles very much good crystals of Eudidymite from that area ( minor Epididymite may also be present) To me it does not look like a Narssarssuk piece. It is still a very antique and rare specimen of a quality not found in recent times. To be correct it is probably: Eudidymite crystals from Stokkøya, Langesundsfjorden, Larvik, Vestfold, Norway. I guess it must have been collected about 1880. (Note: the old label says \"Stokkö\" (Swedish name for the locality); see \u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fmesg-7-112301.html\">http:\u002F\u002Fwww.mindat.org\u002Fmesg-7-112301.html\u003C\u002Fa>)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",800,503,{"id":217,"source_url":218,"license_code":191,"credit_html":219,"title":220,"description":221,"author":195,"original_width":222,"original_height":223},53954,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572557","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572557\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite - Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa> (FOV 4.1 x 3.9 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> These xl have a beautiful \"mother of pearl\" luster. In this pegmatite eudidymite was more plentiful than albite! Unfortunately, in the \"heat of battle\" - and without a scope - it looked all too much like pearly albite so I only picked up a couple of small pieces. Aaargh!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",811,768,{"id":225,"source_url":226,"license_code":201,"credit_html":227,"title":228,"description":229,"author":205,"original_width":230,"original_height":214},8182,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446854","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446854\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-d06-20a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mt Malosa, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZomba_District\" class=\"extiw\" title=\"en:Zomba District\">Zomba District\u003C\u002Fa>, Malawi (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2276.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.4 x 1.0 x 1.0 cm\n\u003Cdl>\u003Cdt>Eudidymite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>An incredibly sharp , almost gemmy crystal for the species with symmetry and crystal form you seldom see even from Mt St Hilaire. This is a spectacular single crystal for the species, the best I saw in a small lot of such things found early in the summer.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",366,{"id":232,"source_url":233,"license_code":201,"credit_html":234,"title":235,"description":236,"author":205,"original_width":207,"original_height":237},8183,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454974","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454974\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-oldeuro-37c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Stokkøya (Stokø; Stockö; Stocköe), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBreviksfjord\" class=\"extiw\" title=\"en:Breviksfjord\">Langesundsfjorden\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLarvik\" class=\"extiw\" title=\"en:Larvik\">Larvik\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVestfold\" class=\"extiw\" title=\"en:Vestfold\">Vestfold\u003C\u002Fa>, Norway (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-13699.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5.1 x 3.4 x 2.4 cm\n\u003Cdl>\u003Cdt>Eudidymite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>An outstanding specimen of this rarity, probably collected in the late 1800s. The specimen has SHARP crystals to 1.5 cm, translucent and lustrous, which are of exceptional quality. I have not cleaned it, so it retains an \"antique look\" , being a bit dirty, on purpose - and makes for a sharper contrast for the upright crystals to the smaller ones comprising matrix. Significant for both species and locale, this is also nicely displayable. Initially, because of the sharp crystals and overall quality, I and others I consulted here in the US thought (assumed!) this to be from Greenland. Thanks to Knut Eldjarn who corrected us that \"Stocko\" refers to this old locality in Norway, rather than a garbling of some location in Greenland as we assumed: You also list an old specimen of alleged \"Epididymite from Narssarsuk\". The label says \"Stock�\" which is one of the islands in the Langesundsfjord of Norway and the specimen resembles very much good crystals of Eudidymite from that area ( minor Epididymite may also be present) To me it does not look like a Narssarssuk piece. It is still a very antique and rare specimen of a quality not found in recent times. To be correct it is probably: Eudidymite crystals from Stokk�ya, Langesundsfjorden, Larvik, Vestfold, Norway. I guess it must have been collected about 1880.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",270,{"id":239,"source_url":240,"license_code":201,"credit_html":241,"title":242,"description":204,"author":205,"original_width":243,"original_height":244},53955,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148527","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148527\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-165228.jpg",380,450,{"id":246,"source_url":247,"license_code":201,"credit_html":248,"title":249,"description":236,"author":205,"original_width":250,"original_height":207},8184,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454976","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454976\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-oldeuro-37d.jpg",327,{"id":252,"source_url":253,"license_code":201,"credit_html":254,"title":255,"description":236,"author":205,"original_width":214,"original_height":215},53956,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454978","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454978\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite-oldeuro-37a.jpg",{"id":257,"source_url":258,"license_code":191,"credit_html":259,"title":260,"description":261,"author":195,"original_width":262,"original_height":263},8178,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572479","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572479\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite and Aegirine - Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada.jpg","A fairly typical \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">eudidymite\u003C\u002Fa> \"fan\" from a pegmatite. There are a few small dark green \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAegirine\" class=\"extiw\" title=\"en:Aegirine\">aegirine\u003C\u002Fa> crystals in the lower right corner. - Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada - FOV 3.1 x 1.8 mm",1012,590,{"id":265,"source_url":266,"license_code":191,"credit_html":267,"title":268,"description":269,"author":195,"original_width":270,"original_height":197},53952,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572453","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572453\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite and Dolomite - Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDolomite\" class=\"extiw\" title=\"en:Dolomite\">Dolomite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>The main rosette is about 7 mm in diameter. Found May 1997\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",893,{"id":272,"source_url":273,"license_code":191,"credit_html":274,"title":275,"description":276,"author":195,"original_width":277,"original_height":278},53953,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572540","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9572540\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Eudidymite and Epididymite - Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEudidymite\" class=\"extiw\" title=\"en:Eudidymite\">Eudidymite\u003C\u002Fa> (colorless-white, monoclinic) and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEpididymite\" class=\"extiw\" title=\"en:Epididymite\">Epididymite\u003C\u002Fa> (brownish, orthorhombic) - Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada - The specimen is about 2.2 x 1.3 x 0.6 cm. Found October 1996. The \"back\" of the specimen is mostly reticulated epididymite. Both sides are shown in this photo.",760,1024,[280,286,291],{"id":281,"url":282,"label":283,"formula":284,"spacegroup":285,"year":175},4316,"\u002Fcif\u002F4316.cif","Gatta 2008","Na2 Be2 Si6 O16 H2","C 1 2\u002Fc 1",{"id":287,"url":288,"label":289,"formula":290,"spacegroup":285,"year":158},4317,"\u002Fcif\u002F4317.cif","Fang 1972","Na Be Si3 O8 H",{"id":292,"url":293,"label":294,"formula":290,"spacegroup":285,"year":138},4318,"\u002Fcif\u002F4318.cif","Ito 1947",[296,297],"Eudidymiet","Eudidymita",[299,303,307,311,315,319,323,327],{"lang":300,"names":301},"az",[302],"Evdidimit",{"lang":304,"names":305},"ca",[306],"eudidimita",{"lang":308,"names":309},"de",[310],"Eudidymit",{"lang":312,"names":313},"eu",[314],"Eudidimita",{"lang":316,"names":317},"it",[318,7],"Eudidimite",{"lang":320,"names":321},"nb",[322],"eudidymitt",{"lang":324,"names":325},"nn",[326],"Eudidymitt",{"lang":328,"names":329},"ru",[330],"Эвдидимит","Q1372252",{"history":11,"applications":11}]