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River mouth, Vilyui River Basin, Mirninsky District, Sakha, Russia",63.1060975,112.2025103,"Russia",1636,[302,306,311,316,320,324,329,333,337,342,347,352,356,361,365,370,374,378,383,387,391,396,401,406],{"id":303,"year":304,"html":305,"doi":11},18301076,1807,"Klaproth, M. H. (1807) CLVII. Untersuchung des olivengrünen Granats, aus Sibirien. In \u003Ci>Beiträge zur chemischen Kenntniss der Mineralkörper\u003C\u002Fi> Vol. 4. Rottmann. p.319-324.",{"id":307,"year":308,"html":309,"doi":310},169360,1950,"Yoder, Hatten S. (1950) Stability Relations of Grossularite. \u003Ci>The Journal of Geology\u003C\u002Fi>,  58 (3) 221-253 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1086\u002F625736'>doi:10.1086\u002F625736\u003C\u002Fa>","10.1086\u002F625736",{"id":312,"year":313,"html":314,"doi":315},469405,1958,"Abrahams, S. C., Geller, S. (1958) Refinement of the structure of a grossularite garnet. \u003Ci>Acta Crystallographica\u003C\u002Fi>,  11 (6) 437-441 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0365110x5800116x'>doi:10.1107\u002Fs0365110x5800116x\u003C\u002Fa>","10.1107\u002Fs0365110x5800116x",{"id":317,"year":318,"html":319,"doi":11},16145758,1986,"ROSSMAN, G.R., AINES, R.D. (1986) Spectroscopy of a birefringent grossular from Asbestos, Quebec, Canada. American Mineralogist, 71, 779-780.",{"id":321,"year":322,"html":323,"doi":11},528717,1989,"Akizuki, Mizuhiko (1989) Growth structure and crystal symmetry of grossular garnets from the Jeffrey mine, Asbestos, Quebec, Canada. \u003Ci>American Mineralogist\u003C\u002Fi>,  74 (7-8) 859-864 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM74\u002FAM74_859.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":325,"year":326,"html":327,"doi":328},151914,1991,"Hofmeister, A.M., Chopelas, A. (1991) Vibrational spectroscopy of end-member silicate garnets. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  17 (6). 503-526 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00202230'>doi:10.1007\u002Fbf00202230\u003C\u002Fa>","10.1007\u002Fbf00202230",{"id":330,"year":331,"html":332,"doi":11},529556,1993,"Cho, Herman, Rossman, George R. (1993) Single-crystal NMR studies of low-concentration hydrous species in minerals: Grossular garnet. \u003Ci>American Mineralogist\u003C\u002Fi>,  78 (11-12) 1149-1164 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM78\u002FAM78_1149.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":334,"year":335,"html":336,"doi":11},16110928,1995,"Stalder, A., Aufdenblatten, M. (1995) Granat (Grossular) aus dem Täschtal VS. Schweizer Strahler: 10: 267-279.",{"id":338,"year":339,"html":340,"doi":341},189167,1996,"Pilati, T., Demartin, F., Gramaccioli, C. M. (1996) Atomic displacement parameters for garnets: a lattice-dynamical evaluation. \u003Ci>Acta Crystallographica Section B Structural Science\u003C\u002Fi>,  52 (2) 239-250 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108768195010925'>doi:10.1107\u002Fs0108768195010925\u003C\u002Fa>","10.1107\u002Fs0108768195010925",{"id":343,"year":344,"html":345,"doi":346},393644,1997,"Geiger, Charles A., Armbruster, Thomas (1997) Mn\u003Csub>3\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub> spessartine and Ca\u003Csub>3\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>3\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub> grossular garnet; structural dynamic and thermodynamic properties. \u003Ci>American Mineralogist\u003C\u002Fi>,  82 (7-8). 740-747 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-1997-7-811'>doi:10.2138\u002Fam-1997-7-811\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol82\u002FAM82_740.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-1997-7-811",{"id":348,"year":349,"html":350,"doi":351},394071,2000,"Wang, Liping, Essene, Eric J., Zhang, Youxue (2000) Direct observation of immiscibility in pyrope-almandine-grossular garnet. \u003Ci>American Mineralogist\u003C\u002Fi>,  85 (1) 41-46 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2000-0106'>doi:10.2138\u002Fam-2000-0106\u003C\u002Fa>","10.2138\u002Fam-2000-0106",{"id":353,"year":354,"html":355,"doi":11},16964676,2001,"(2001) Grossular. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fgrossular.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":357,"year":358,"html":359,"doi":360},152872,2002,"Becker, U., Pollok, K. (2002) Molecular simulations of interfacial and thermodynamic mixing properties of grossular-andradite garnets. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  29 (1) 52-64 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs002690100211'>doi:10.1007\u002Fs002690100211\u003C\u002Fa>","10.1007\u002Fs002690100211",{"id":362,"year":358,"html":363,"doi":364},394577,"Rodehorst, Uta, Geiger, Charles A., Armbruster, Thomas (2002) The crystal structures of grossular and spessartine between 100 and 600 K and the crystal chemistry of grossular-spessartine solid solutions. \u003Ci>American Mineralogist\u003C\u002Fi>,  87 (4) 542-549 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2002-0417'>doi:10.2138\u002Fam-2002-0417\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol87\u002FAM87_542.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2002-0417",{"id":366,"year":367,"html":368,"doi":369},394914,2004,"Hofmeister, A.M., Giesting, P.A., Wopenka, B., Gwanmesia, G.D., Jolliff, B.L. (2004) Vibrational spectroscopy of pyrope-majorite garnets: Structural implications. \u003Ci>American Mineralogist\u003C\u002Fi>,  89 (1) 132-146 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2004-0116'>doi:10.2138\u002Fam-2004-0116\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol89\u002FAM89_132.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2004-0116",{"id":371,"year":367,"html":372,"doi":373},394923,"Milke, Ralf (2004) Spiral growth of grossular under hydrothermal conditions. \u003Ci>American Mineralogist\u003C\u002Fi>,  89 (1) 211-218 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2004-0125'>doi:10.2138\u002Fam-2004-0125\u003C\u002Fa>","10.2138\u002Fam-2004-0125",{"id":375,"year":367,"html":376,"doi":377},153103,"Rodehorst, U., Carpenter, M. A., Ballaran, T. Boffa, Geiger, C. A. (2004) Local structural heterogeneity, mixing behaviour and saturation effects in the grossular-spessartine solid solution. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  31 (7). 387-404 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-004-0410-2'>doi:10.1007\u002Fs00269-004-0410-2\u003C\u002Fa>","10.1007\u002Fs00269-004-0410-2",{"id":379,"year":380,"html":381,"doi":382},16842136,2013,"Gaft, M., Yeates, H., Nagli, L., Panczer, G. (2013) Laser-induced time resolved luminescence of natural grossular Ca3Al2(SiO4)3. \u003Ci>Journal of Luminescence\u003C\u002Fi>,  137. 43-53 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.jlumin.2012.11.015'>doi:10.1016\u002Fj.jlumin.2012.11.015\u003C\u002Fa>","10.1016\u002Fj.jlumin.2012.11.015",{"id":384,"year":380,"html":385,"doi":386},65143,"Antao, Sytle M. (2013) Is near-endmember birefringent grossular non-cubic? New evidence from synchrotron diffraction. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  51 (5). 771-784 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.51.5.771'>doi:10.3749\u002Fcanmin.51.5.771\u003C\u002Fa>","10.3749\u002Fcanmin.51.5.771",{"id":388,"year":389,"html":390,"doi":11},15929758,2019,"Badar, M. A., Hussain, S., Niaz, S. (2016). Optical anomaly in near-end-member grossular garnet from the Jeffrey mine, Asbestos, Quebec, Canada. International Journal of Economic and Environmental Geology, 6 (1), 1-7. https:\u002F\u002Fwww.researchgate.net\u002Fpublication\u002F290430243_Optical_anomaly_in_near-end-member_grossular_garnet_from_the_Jeffrey_mine_Asbestos_Quebec_Canada",{"id":392,"year":393,"html":394,"doi":395},13421893,2021,"Antao, Sytle M. (2021) Crystal Chemistry of Six Grossular Garnet Samples from Different Well-Known Localities. \u003Ci>Minerals\u003C\u002Fi>, 11 (7) 767 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin11070767'>doi:10.3390\u002Fmin11070767\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.mdpi.com\u002F2075-163X\u002F11\u002F7\u002F767\u002Fpdf?version=1626418104' class='refpdflink'>\u003C\u002Fa>","10.3390\u002Fmin11070767",{"id":397,"year":398,"html":399,"doi":400},16854503,2022,"Gaft, M., Waychunas, G., Rossman, G.R., Nagli, L., Goryachev, A., Raichlin, Y. (2022) Zero-phonon Mn2+ luminescence in natural grossular Ca3Al2(SiO4)3. \u003Ci>Journal of Luminescence\u003C\u002Fi>,  248. 119001 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.jlumin.2022.119001'>doi:10.1016\u002Fj.jlumin.2022.119001\u003C\u002Fa>","10.1016\u002Fj.jlumin.2022.119001",{"id":402,"year":403,"html":404,"doi":405},15711050,2023,"Zhu, Qiaoqiao, Cook, Nigel J., Xie, Guiqing, Ciobanu, Cristiana L., Ji, Yunhao (2023) Determination of skarn garnet compositions using Raman spectroscopy. \u003Ci>Journal of Raman Spectroscopy\u003C\u002Fi>, 54 (2) 217-224 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fjrs.6472'>doi:10.1002\u002Fjrs.6472\u003C\u002Fa>","10.1002\u002Fjrs.6472",{"id":407,"year":403,"html":408,"doi":409},15823396,"Zhang, Qian, Shi, Yujing, Shao, Tian, Li, Xingtong, Xu, Fengshun, Shen, Andy H. (2023) Luminescence Characteristics of Green Grossular Garnets. \u003Ci>Minerals\u003C\u002Fi>, 13 (5) 639 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin13050639'>doi:10.3390\u002Fmin13050639\u003C\u002Fa>","10.3390\u002Fmin13050639",[411,418,428,438,446,453,461,471,479,486,493,500,507,514,523,532,540,547,554,561,570,579,589,596,604,611,617,624,631,640,647,654,661,669,676,683,690,697,704,711,718,725,731,735],{"id":412,"source_url":413,"license_code":414,"credit_html":415,"title":7,"description":11,"author":11,"original_width":416,"original_height":417},29814,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F114955","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\u002F114955\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,666,{"id":419,"source_url":420,"license_code":421,"credit_html":422,"title":423,"description":424,"author":425,"original_width":426,"original_height":427},10496,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2004904","Public domain","Alkivar at English Wikipedia, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2004904\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","GrossularShades.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGarnet\" class=\"extiw\" title=\"en:Garnet\">en:Garnet\u003C\u002Fa> \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGarnet#Grossularite\" class=\"extiw\" title=\"en:Garnet\">Grossular\u003C\u002Fa> is available in multiple shades... This curve demonstrates some of the many hues. \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNational_Museum_of_Natural_History\" class=\"extiw\" title=\"en:National Museum of Natural History\">en:National Museum of Natural History\u003C\u002Fa> in \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWashington,_DC\" class=\"extiw\" title=\"en:Washington, DC\">en:Washington, DC\u003C\u002Fa>","Alkivar at English Wikipedia",998,576,{"id":429,"source_url":430,"license_code":431,"credit_html":432,"title":433,"description":434,"author":435,"original_width":436,"original_height":437},10498,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135656","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135656\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-57594.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jeffrey mine (Jeffrey quarry; Johns-Manville mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAsbestos\" class=\"extiw\" title=\"en:Asbestos\">Asbestos\u003C\u002Fa>, Les Sources RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEstrie\" class=\"extiw\" title=\"en:Estrie\">Estrie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>These already-rare bright green Jeffrey Mine grossulars have virtually DISAPPEARED since the closing of the mine. Now and then, you will find a little specimen with tiny crystals, but not sizeable crystals such as this (to .45 mm), with the TOP glowing green color and gemminess! As hard as it is to find one of these now, it will only get harder. Although small as a specimen, this is of truly superior quality! 2.5 x 2.4 x 1.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",630,540,{"id":439,"source_url":440,"license_code":431,"credit_html":441,"title":442,"description":443,"author":435,"original_width":444,"original_height":445},57533,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120716","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120716\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-22531.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jeffrey mine (Jeffrey quarry; Johns-Manville mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAsbestos\" class=\"extiw\" title=\"en:Asbestos\">Asbestos\u003C\u002Fa>, Les Sources RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEstrie\" class=\"extiw\" title=\"en:Estrie\">Estrie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A gorgeous plate of rich, highly lustrous, gemmy grossular garnets. It can be displayed just about any which way, and flashes color and faces at you no matter which angle you choose.It is a thin plate with no damage at all save for the very edges, and is thus in exceptional condition. Note that the mine is now CLOSED for good. 6 x 5.6 x 1.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,503,{"id":447,"source_url":448,"license_code":431,"credit_html":449,"title":450,"description":451,"author":435,"original_width":444,"original_height":452},10500,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418316","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418316\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-ww51a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSierra_Mojada\" class=\"extiw\" title=\"en:Sierra Mojada\">Sierra Mojada\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSierra_Mojada_(municipality)\" class=\"extiw\" title=\"en:Sierra Mojada (municipality)\">Municipio de Sierra Mojada\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCoahuila\" class=\"extiw\" title=\"en:Coahuila\">Coahuila\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-22560.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.2 x 2.2 x 1.3 cm\n\u003Cdl>\u003Cdt>Grossular Garnet\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>From the famous Mexican discovery, these famous red garnets have graced many important collections. This superb dodecahedron, .7 cm across and having excellent luster, sits perfectly atop the quartz matrix. Ex. Wendell E. Wilson Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",579,{"id":454,"source_url":455,"license_code":431,"credit_html":456,"title":457,"description":458,"author":435,"original_width":459,"original_height":460},57534,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10122302","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10122302\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-26320.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jeffrey mine (Jeffrey quarry; Johns-Manville mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAsbestos\" class=\"extiw\" title=\"en:Asbestos\">Asbestos\u003C\u002Fa>, Les Sources RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEstrie\" class=\"extiw\" title=\"en:Estrie\">Estrie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Jeffrey Mine garnets of any quality are disappearing rapidly, and this specimen consists of two HUGE crystals stacked on top of one another! They have wonderful luster, incredibly cool diamond-shaped striations on their faces, and are extremely gemmy! Each crystal measures just about 2.5 cm and the piece is complete extcept for the natural contact on the bottom. The back of the specimen is flat, a natural contact face. THIS IS HUGE FOR THE LOCALITY! The specimen was repaired, to reattach the two crystals at their natural junction, but the fit is exact and clean and not noticeable. THIS QUARRY IS NOW closed and gone for good. this piece has enormous display impact. Old material from the Gary Hansen Collection (reflective of 1970s-80s dealer stock) 4.1 x 2.7 x 1.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",478,720,{"id":462,"source_url":463,"license_code":464,"credit_html":465,"title":466,"description":467,"author":468,"original_width":469,"original_height":470},10501,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75395651","CC BY-SA 4.0","Stephencdickson, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75395651\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet from Quebec, collected by Dr John Hunter in the 18th century, Hunterian Museum, Glasgow.jpg","Grossular garnet from Quebec, collected by Dr John Hunter in the 18th century, Hunterian Museum, Glasgow","Stephencdickson",3088,2056,{"id":472,"source_url":473,"license_code":431,"credit_html":474,"title":475,"description":476,"author":435,"original_width":477,"original_height":478},57535,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141219","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141219\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-130106.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Lake Jaco, Sierra de la Cruz, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSierra_Mojada_(municipality)\" class=\"extiw\" title=\"en:Sierra Mojada (municipality)\">Municipio de Sierra Mojada\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCoahuila\" class=\"extiw\" title=\"en:Coahuila\">Coahuila\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-7766.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.8 x 4.9 x 3.7 cm.\u003C\u002Fdd>\n\u003Cdd>This grossular crystal is olive-brown, with high luster. You can see some euhedral contacts where little grossularites grew against it. Ex. Gene Meieran Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,389,{"id":480,"source_url":481,"license_code":431,"credit_html":482,"title":483,"description":484,"author":435,"original_width":444,"original_height":485},57536,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142398","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142398\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-137781.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sibinndi, Nioro du Sahel Circle, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKayes_Region\" class=\"extiw\" title=\"en:Kayes Region\">Kayes Region\u003C\u002Fa>, Mali (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158663.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.9 x 3.4 x 2.9 cm.\u003C\u002Fdd>\n\u003Cdd>From the exciting recent find in Mali, this specimen represents the very TOP- with rare MATRIX association, and high luster on the large crystals. From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyway, an exceptional specimen from this find. The crystals measure to 2.2 cm across - and again, matrix specimens are exceedingly rare.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",437,{"id":487,"source_url":488,"license_code":431,"credit_html":489,"title":490,"description":491,"author":435,"original_width":444,"original_height":492},57537,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146005","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146005\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-151576.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sibinndi, Nioro du Sahel Circle, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKayes_Region\" class=\"extiw\" title=\"en:Kayes Region\">Kayes Region\u003C\u002Fa>, Mali (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158663.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.8 x 1.7 x 1.6 cm, 2.4 x 2.4 x 1.9 cm, 1.9 x 1.9 x 1.9 cm.\u003C\u002Fdd>\n\u003Cdd>From the exciting finds of last year in Mali, three sharp yellow garnets of textbook form. From a collector who commented on these last time we posted a few: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I am surprised that the body color is not more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",264,{"id":494,"source_url":495,"license_code":431,"credit_html":496,"title":497,"description":498,"author":435,"original_width":499,"original_height":444},57538,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154363","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154363\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-186556.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Santa Rosa Mountains Deposits, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Diego_County,_California\" class=\"extiw\" title=\"en:San Diego County, California\">San Diego County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-91574.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.4 x 5.4 x 3.9 cm.\u003C\u002Fdd>\n\u003Cdd>A large, fine example of a grossular crystal from San Diego County. The main crystal here measures 1.8 cm; there are others embedded in the matrix, but this one stands out nicely. Ex. Bill Larson Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",513,{"id":501,"source_url":502,"license_code":431,"credit_html":503,"title":504,"description":505,"author":435,"original_width":444,"original_height":506},57539,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167829","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167829\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-252618.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Nioro du Sahel Circle, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKayes_Region\" class=\"extiw\" title=\"en:Kayes Region\">Kayes Region\u003C\u002Fa>, Mali (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-36414.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.8 x 4.0 x 3.8 cm.\u003C\u002Fdd>\n\u003Cdd>Exhibiting classical dodecahedral form, this rather equant garnet has good luster with a body color of olive green. This is a complete, large and well formed crystal overall. Weighs 188 grams.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",530,{"id":508,"source_url":509,"license_code":431,"credit_html":510,"title":511,"description":512,"author":435,"original_width":444,"original_height":513},57541,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172185","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172185\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-280358.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jeffrey mine (Jeffrey quarry; Johns-Manville mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAsbestos\" class=\"extiw\" title=\"en:Asbestos\">Asbestos\u003C\u002Fa>, Les Sources RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEstrie\" class=\"extiw\" title=\"en:Estrie\">Estrie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.2 x 6.3 x 1.9 cm.\u003C\u002Fdd>\n\u003Cdd>A glistening, jewel-like plate of just solid gemmy garnets. The locality is now officially defunct and only a handful of specimens still come out as obtained by the occasional person who can get down in the mine in a roundabout fashion. This is a large, fine specimen. When backlit it is translucent.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",555,{"id":515,"source_url":516,"license_code":464,"credit_html":517,"title":518,"description":519,"author":520,"original_width":521,"original_height":522},57546,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=128073865","Reinhard Kraasch, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=128073865\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Kontaktskarn mit Grossular (RK 2206 P1890064).jpg","Kontakts\u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FSkarn\" class=\"extiw\" title=\"de:Skarn\">skarn\u003C\u002Fa> mit \u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"de:Grossular\">Grossular\u003C\u002Fa> aus Breitenbrunn, Sachsen – ausgestellt im \u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FMineralogisches_Museum_W%C3%BCrzburg\" class=\"extiw\" title=\"de:Mineralogisches Museum Würzburg\">Mineralogischen Museum Würzburg\u003C\u002Fa>","Reinhard Kraasch",1770,1327,{"id":524,"source_url":525,"license_code":431,"credit_html":526,"title":527,"description":528,"author":529,"original_width":530,"original_height":531},83796,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30733997","Lech Darski, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=30733997\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Granat, grossular, tsavoryt - kopalnia (Ambaar) Bajour, North West areas of Pakistan..jpg","Granat, grossular, tsavoryt - kopalnia (Ambaar) Bajour,  North West areas of Pakistan.","Lech Darski",5184,3456,{"id":533,"source_url":534,"license_code":431,"credit_html":535,"title":536,"description":537,"author":435,"original_width":538,"original_height":539},53488,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162897","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162897\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Epidote-225228.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEpidote\" class=\"extiw\" title=\"en:Epidote\">Epidote\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Belvidere Mountain Quarries (Vermont Asbestos Group mine; VAG mine; Ruberoid Asbestos mine; Eden Mills quarries), Lowell & Eden, Orleans & Lamoille Cos., \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVermont\" class=\"extiw\" title=\"en:Vermont\">Vermont\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4559.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.0 x 1.8 x 1.4 cm.\u003C\u002Fdd>\n\u003Cdd>A rare replacement, classic for this locality. Grossular garnet has completely replaced a former epidote crystal cluster. Ex. Ken Hollman Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",432,800,{"id":541,"source_url":542,"license_code":431,"credit_html":543,"title":544,"description":545,"author":435,"original_width":444,"original_height":546},57540,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170988","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170988\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Diopside-271416.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiopside\" class=\"extiw\" title=\"en:Diopside\">Diopside\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Jeffrey mine (Jeffrey quarry; Johns-Manville mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAsbestos\" class=\"extiw\" title=\"en:Asbestos\">Asbestos\u003C\u002Fa>, Les Sources RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEstrie\" class=\"extiw\" title=\"en:Estrie\">Estrie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.8 x 4.2 x 3.4 cm.\u003C\u002Fdd>\n\u003Cdd>Supremely gemmy and lustrous, cinnamon-orange grossular garnets are aesthetically set on sculptural matrix covered with very glassy, pastel-green to colorless diopside needles on this fine combination specimen from the Jeffrey Mine. The isolated single crystal is 8 mm and the cluster is 1.5 cm across. Classic material from the Wes Parker Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",510,{"id":548,"source_url":549,"license_code":431,"credit_html":550,"title":551,"description":552,"author":435,"original_width":553,"original_height":539},57543,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429864","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429864\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Graphite-Grossular-d06-198a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGraphite\" class=\"extiw\" title=\"en:Graphite\">Graphite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Merelani Hills (Mererani), Lelatema Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArusha_Region\" class=\"extiw\" title=\"en:Arusha Region\">Arusha Region\u003C\u002Fa>, Tanzania (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5699.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.3 x 1.7 x 1.6 cm\n\u003Cdl>\u003Cdt>Tsavorite with Graphite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a superb, stunningly attractive cluster of gemmy, emerald green grossular var. tsavorite on lustrous, black graphite with minor pyrite. The largest tsavorite measures 1.0 cm in length and the cluster weighs 31.37 carats.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",634,{"id":555,"source_url":556,"license_code":431,"credit_html":557,"title":558,"description":559,"author":435,"original_width":560,"original_height":539},57544,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438554","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438554\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Prehnite-sea43a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPrehnite\" class=\"extiw\" title=\"en:Prehnite\">Prehnite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVesper_Peak\" class=\"extiw\" title=\"en:Vesper Peak\">Vesper Peak\u003C\u002Fa>, Sultan Basin, Sultan District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSnohomish_County,_Washington\" class=\"extiw\" title=\"en:Snohomish County, Washington\">Snohomish County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWashington\" class=\"extiw\" title=\"en:Washington\">Washington\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-15036.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.2 x 2.7 x 2.0 cm\n\u003Cdl>\u003Cdt>Prehnite with Grossular garnet\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A rarity for the locality, found in the mid- 1970s by local collectors, this is a sharp euhedral prehnite crystal, from the classic garnet locale. The prehnite measures 2 cm, tip to tip. Ex. John White Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",781,{"id":562,"source_url":563,"license_code":421,"credit_html":564,"title":565,"description":566,"author":567,"original_width":568,"original_height":569},6381,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=124681541","Robert Walstrom, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=124681541\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cotunnite, Xilingolite, Albite, Grossular-951378.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCotunnite\" class=\"extiw\" title=\"en:Cotunnite\">Cotunnite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FXilingolite\" class=\"extiw\" title=\"en:Xilingolite\">Xilingolite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAlbite\" class=\"extiw\" title=\"en:Albite\">Albite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 17 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Ogre-Bogle group of claims (Tedford's group), Victorio District (Gage District), Victorio Mountains, Luna County, New Mexico, USA\u003C\u002Fdd>\n\u003Cdd>Description: Micro colorless cotunnite crystals on black xilingolite crystals and associated with white albite and pale brown grossular. The cotunnite and xilingolite have been XRD-EDS analyzed. This specimen was collected 3\u002F11\u002F15 by Robert E. Walstrom from the main dump of the lower shaftt of the mine. This is a reclaimed locality. Photo: Robert E. Walstrom using a Dino-Lite digital plug-in camera.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert Walstrom",1264,954,{"id":571,"source_url":572,"license_code":421,"credit_html":573,"title":574,"description":575,"author":576,"original_width":577,"original_height":578},11834,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9378363","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9378363\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grenat grossulaire 1.jpg","garnet var. grossular : Lake Jaco, Sierra de la Cruz, Municipio de Sierra Mojada, Coahuila, Mexico","Géry PARENT",4288,2848,{"id":580,"source_url":581,"license_code":582,"credit_html":583,"title":584,"description":585,"author":586,"original_width":587,"original_height":588},20229,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336346","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336346\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 4.jpg","Grossular garnet from Mexico.\n\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are about 6100 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The silicates are the most abundant and chemically complex group of minerals.  All silicates have silica as the basis for their chemistry.  \"Silica\" refers to SiO2 chemistry.  The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4.  Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens \"belong\" to each silicon.  The resulting formula for silica is thus SiO2, not SiO4.\n\u003C\u002Fp>\u003Cp>Garnet is a group of silicate minerals.  Garnets are expected to be red to dark red in color - many of them are, but several garnet varieties can be other colors, including purple, orange, olive green, deep green, and black.  Garnets form 12-sided crystals (dodecahedrons) or crystals with even more faces on them.  The crystals become more and more rounded as the crystal face number increases.  Garnet has a nonmetallic, glassy luster, whitish streak, is quite hard (H = 7), has no cleavage, and has conchoidal fracture.\n\u003C\u002Fp>\u003Cp>Common examples of garnet include almandine, grossular, spessartine, and andradite.\n\u003C\u002Fp>\u003Cp>Grossular is a calcium-aluminum garnet (ideally Ca3Al2Si3O12 - calcium aluminum silicate).  It typically forms after argillaceous limestones have been contact metamorphosed or regionally metamorphosed.\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of grossular garnet:\n\u003C\u002Fp>\nwww.mindat.org\u002Fgallery.php?min=1755","James St. John",2638,2390,{"id":590,"source_url":591,"license_code":582,"credit_html":592,"title":593,"description":585,"author":586,"original_width":594,"original_height":595},20230,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336355","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336355\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 10.jpg",2366,2300,{"id":597,"source_url":598,"license_code":431,"credit_html":599,"title":600,"description":601,"author":602,"original_width":603,"original_height":578},34298,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22300677","Siim Sepp (Sandatlas), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22300677\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","00031 6 cm grossular calcite augite skarn.jpg","Skarn from Mount Monzoni, Northern Italy. Skarn is a metamorphic rock type. It forms when magmatic liquids react with carbonate rocks (limestone, marble). This skarn is composed of calcite (blue), pyroxene augite (green), and garnet grossular (orange). The width of the view is 6 cm. Additional information from the source: \u003Ca rel=\"nofollow\" class=\"external autonumber\" href=\"http:\u002F\u002Fwww.sandatlas.org\u002F2012\u002F03\u002Fwhat-happens-when-magma-attacks-limestone\u002F\">[2]\u003C\u002Fa>","Siim Sepp (Sandatlas)",3347,{"id":605,"source_url":606,"license_code":431,"credit_html":607,"title":608,"description":609,"author":435,"original_width":444,"original_height":610},39963,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140887","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140887\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Diopside-122206.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDiopside\" class=\"extiw\" title=\"en:Diopside\">Diopside\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FThetford_Mines\" class=\"extiw\" title=\"en:Thetford Mines\">Thetford Mines\u003C\u002Fa>, Les Appalaches RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChaudi%C3%A8re-Appalaches\" class=\"extiw\" title=\"en:Chaudière-Appalaches\">Chaudière-Appalaches\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-7587.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.3 x 5.7 x 5.2 cm.\u003C\u002Fdd>\n\u003Cdd>A showy, old-time and excellent combination specimen from the famous Thetford Mines of Quebec of bright green, chrome, grossular garnets aesthetically nested on a jackstraw matrix of lustrous, translucent to opaque, tan to green, diopside prisms. An excellent, old piece from the George Elling Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",496,{"id":612,"source_url":613,"license_code":431,"credit_html":614,"title":615,"description":609,"author":435,"original_width":444,"original_height":616},39964,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140889","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140889\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Diopside-122207.jpg",556,{"id":618,"source_url":619,"license_code":431,"credit_html":620,"title":621,"description":622,"author":435,"original_width":623,"original_height":477},53492,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10475390","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10475390\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Epidote-Grossular-usa73d.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEpidote\" class=\"extiw\" title=\"en:Epidote\">Epidote\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Belvidere Mountain Quarries (Vermont Asbestos Group mine; VAG mine; Ruberoid Asbestos mine; Eden Mills quarries), Lowell & Eden, Orleans & Lamoille Cos., \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVermont\" class=\"extiw\" title=\"en:Vermont\">Vermont\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4559.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.7 x 4.2 x 3.8 cm\n\u003Cdl>\u003Cdt>Grossular Garnet pseudo. after Epidote\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A rare replacement, classic for this locality! This is a super specimen with a large, 3-dimensional, sharp crystal at the top of a cluster of smaller ones. The Grossular garnet has completely replaced a former epidote crystal cluster. Diopside crystals deposited later, accent the termination. Although there is a slight contact to the right side of the replaced epidote termination, the termination is basically complete, and sure looks complete at first glance. Again, it is a very choice example for the style because of the sharpness of crystal habit here. ex. Ken Hollman Collection\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",342,{"id":625,"source_url":626,"license_code":431,"credit_html":627,"title":628,"description":629,"author":435,"original_width":630,"original_height":477},53493,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10476127","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10476127\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Epidote-Grossular-usa64c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEpidote\" class=\"extiw\" title=\"en:Epidote\">Epidote\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Belvidere Mountain Quarries (Vermont Asbestos Group mine; VAG mine; Ruberoid Asbestos mine; Eden Mills quarries), Lowell & Eden, Orleans & Lamoille Cos., \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVermont\" class=\"extiw\" title=\"en:Vermont\">Vermont\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4559.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 7.4 x 7.1 x 4.2 cm\n\u003Cdl>\u003Cdt>Grossular Garnet pseudo. after Epidote\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Because it is a cluster, and large, this is a really good example of this rare replacement! Grossular garnet has completely replaced a former epidote crystal cluster (floater, with the largest crystal 7 cm and doubly-terminated). On the grossular, later-formed diopside crystals have grown. The whole thing was encased in, and dissolved out of, calcite by the collector (Ken Hollman). In good shape and complete all around except for two small damage spots at the top right and top-left of the large crystal's termination (or this would be twice the price, as well). ex. Ken Hollman Collection\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",371,{"id":632,"source_url":633,"license_code":431,"credit_html":634,"title":635,"description":636,"author":637,"original_width":638,"original_height":639},60011,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=927139","Linnell, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=927139\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular.jpg","Grossular garnet from Jaco Lake, Mexico","Linnell",962,858,{"id":641,"source_url":642,"license_code":431,"credit_html":643,"title":644,"description":645,"author":435,"original_width":444,"original_height":646},60012,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142237","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142237\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-136098.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sibinndi, Nioro du Sahel Circle, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKayes_Region\" class=\"extiw\" title=\"en:Kayes Region\">Kayes Region\u003C\u002Fa>, Mali (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158663.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.4 x 2.9 x 1.9 cm.\u003C\u002Fdd>\n\u003Cdd>From the exciting new find in Mali, three sharp yellow garnets of textbook form. You have probably seen these Mali garnets before, but this is truly the absolute TOP in quality! VERY few have this glassy luster! From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyway, this is a cluster of three crystals, again with the very rare (for these) GLASSY luster. I really like the unusual color of these - this is certainly a very atypical color for garnets, and beautiful in its own way.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",571,{"id":648,"source_url":649,"license_code":431,"credit_html":650,"title":651,"description":652,"author":435,"original_width":444,"original_height":653},60013,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144473","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10144473\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-142244.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sibinndi, Nioro du Sahel Circle, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKayes_Region\" class=\"extiw\" title=\"en:Kayes Region\">Kayes Region\u003C\u002Fa>, Mali (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158663.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.4 x 2.1 x 1.6 cm.\u003C\u002Fdd>\n\u003Cdd>From the exciting new find in Mali, three sharp yellow garnets of textbook form. From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyhow, this is one of a few cherry-picked specimens that are head and shoulders above the rest, for its luster and sharpness; it consists of two intergrown crystals.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",534,{"id":655,"source_url":656,"license_code":431,"credit_html":657,"title":658,"description":659,"author":435,"original_width":660,"original_height":477},60014,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160232","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160232\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-208655.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOcna_de_Fier\" class=\"extiw\" title=\"en:Ocna de Fier\">Ocna de Fier (Vaskö-Moraviţa; Vaskö-Moravicza; Eisenstein)\u003C\u002Fa>, Ocna de Fier-Dognecea District, Banat Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCara%C5%9F-Severin_County\" class=\"extiw\" title=\"en:Caraş-Severin County\">Caras-Severin County\u003C\u002Fa>, Romania (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5458.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.8 x 6.3 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>From the personal garnet suite of Bill Larson, a superb specimen of grossular from Eastern Europe. The crystals, to 1.3 cm, are super-sharp, and have fine luster, and a pretty mossy-green color.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",381,{"id":662,"source_url":663,"license_code":431,"credit_html":664,"title":665,"description":666,"author":529,"original_width":667,"original_height":668},60015,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27858836","Lech Darski, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27858836\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Granat, grossular - Chernyshewsk, Jakucja, Rosja..jpg","Granat, grossular - Chernyshewsk, Jakucja, Rosja.",3552,2368,{"id":670,"source_url":671,"license_code":582,"credit_html":672,"title":673,"description":585,"author":586,"original_width":674,"original_height":675},75733,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336338","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336338\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 2.jpg",2574,2357,{"id":677,"source_url":678,"license_code":582,"credit_html":679,"title":680,"description":585,"author":586,"original_width":681,"original_height":682},75734,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336344","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336344\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 3.jpg",2315,2481,{"id":684,"source_url":685,"license_code":582,"credit_html":686,"title":687,"description":585,"author":586,"original_width":688,"original_height":689},75735,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336345","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336345\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 5.jpg",2326,2226,{"id":691,"source_url":692,"license_code":582,"credit_html":693,"title":694,"description":585,"author":586,"original_width":695,"original_height":696},75736,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336350","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336350\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 6.jpg",2278,2379,{"id":698,"source_url":699,"license_code":582,"credit_html":700,"title":701,"description":585,"author":586,"original_width":702,"original_height":703},75737,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336351","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336351\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 7.jpg",2068,2286,{"id":705,"source_url":706,"license_code":582,"credit_html":707,"title":708,"description":585,"author":586,"original_width":709,"original_height":710},75738,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336356","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336356\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 9.jpg",2412,2485,{"id":712,"source_url":713,"license_code":582,"credit_html":714,"title":715,"description":585,"author":586,"original_width":716,"original_height":717},75741,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336361","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=159336361\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular garnet (Mexico) 8.jpg",2130,2136,{"id":719,"source_url":720,"license_code":431,"credit_html":721,"title":722,"description":723,"author":435,"original_width":724,"original_height":444},87345,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10134930","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10134930\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Zoisite-53086.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZoisite\" class=\"extiw\" title=\"en:Zoisite\">Zoisite\u003C\u002Fa> (Var.: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTanzanite\" class=\"extiw\" title=\"en:Tanzanite\">Tanzanite\u003C\u002Fa>)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Merelani Hills (Mererani), Lelatema Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArusha_Region\" class=\"extiw\" title=\"en:Arusha Region\">Arusha Region\u003C\u002Fa>, Tanzania (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5699.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This superb miniature is from a rare, small find of about 6 years back. It features mint-green grossular garnets ON tanzanite matrix! The garnets are good in and of themselves, and of quite high quality for the location. The combination, though, is just unique so far as i know. 3.5 x 2.7 x 2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",597,{"id":726,"source_url":727,"license_code":431,"credit_html":728,"title":729,"description":730,"author":435,"original_width":724,"original_height":444},87348,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464323","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464323\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Grossular-Zoisite-t06-147a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrossular\" class=\"extiw\" title=\"en:Grossular\">Grossular\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZoisite\" class=\"extiw\" title=\"en:Zoisite\">Zoisite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Merelani Hills (Mererani), Lelatema Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArusha_Region\" class=\"extiw\" title=\"en:Arusha Region\">Arusha Region\u003C\u002Fa>, Tanzania (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5699.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.5 x 2.7 x 2 cm\n\u003Cdl>\u003Cdt>Grossular Garnet on Tanzanite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This superb miniature is from a rare, small find of about 6 years back. It features mint-green grossular garnets ON tanzanite matrix! The garnets are good in and of themselves, and of quite high quality for the location. The combination, though, is just unique so far as i know.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":732,"source_url":733,"license_code":464,"credit_html":734,"title":7,"description":11,"author":11,"original_width":417,"original_height":416},88402,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61731","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61731\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",{"id":736,"source_url":737,"license_code":464,"credit_html":738,"title":7,"description":11,"author":11,"original_width":416,"original_height":739},88403,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65583","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65583\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",699,[741,747,752,757,762],{"id":742,"url":743,"label":744,"formula":745,"spacegroup":746,"year":380},5740,"\u002Fcif\u002F5740.cif","Antao 2013 · Ca2.922 Mn.048 Fe.1 Mg.003 Al1.953 Ti.02 Si2.955 O12","Ca2.922 Mn.048 Fe.1 Mg.003 Al1.953 Ti.02 Si2.955 O12","I a -3 d",{"id":748,"url":749,"label":750,"formula":751,"spacegroup":746,"year":380},5742,"\u002Fcif\u002F5742.cif","Antao 2013 · Ca2.994 Mg.003 Al1.709 Cr.216 Ti.054 Fe.046 Mn.036 Si2.943 O12","Ca2.994 Mg.003 Al1.709 Cr.216 Ti.054 Fe.046 Mn.036 Si2.943 O12",{"id":753,"url":754,"label":755,"formula":756,"spacegroup":746,"year":380},5744,"\u002Fcif\u002F5744.cif","Antao 2013 · Ca2.955 Mg.048 Mn.023 Al1.1 Fe.864 Ti.07 Si2.94 O12","Ca2.955 Mg.048 Mn.023 Al1.1 Fe.864 Ti.07 Si2.94 O12",{"id":758,"url":759,"label":760,"formula":761,"spacegroup":746,"year":380},5746,"\u002Fcif\u002F5746.cif","Antao 2013 · Ca2.964 Mn.012 Fe.116 Mg.012 Al1.877 Ti.008 Si2.973 O12","Ca2.964 Mn.012 Fe.116 Mg.012 Al1.877 Ti.008 Si2.973 O12",{"id":763,"url":764,"label":765,"formula":766,"spacegroup":746,"year":767},5747,"\u002Fcif\u002F5747.cif","Oberti 2006","Ca2.85 Sc.44 Al1.86 Si2.85 O12",2006,[769,770,771,772,773,774,775,776,777,778,779,780,781,782,783,784,785,786,787,788,789,790,791,792,793,794,795,796,797,798,799,800],"Colophonit","Colophonita","Ernit","Ernita","Ernite","Garnet Jade","Gooseberry-Garnet","Grossular Garnet","Grossularit","Grossularita","Grossularite","Kalkthongranat","Kanelstein","Kolophonit","Olyntholit","Olyntholita","Olyntholite","Pechgranat","Romanzovite","Rumanzowit","Rumjanzowit","Telemarkit","Tellemarkit","Tellemarkita","Tellemarkite","Viluit","Viluita","Viluite (of Severgin)","Wilouit","Wilouita","Wilouite","Wiluite (of Severgin)",[802,806,810,813,817,821,824,828,832,836,840,844,848,853,857,861,865,869,873,877,881,885,888,891,894,899,903,906,909,913,917,921],{"lang":803,"names":804},"az",[805],"Qrossulyar",{"lang":807,"names":808},"ca",[809],"grossulària",{"lang":811,"names":812},"de",[7],{"lang":814,"names":815},"es",[816],"grosularia",{"lang":818,"names":819},"et",[820],"grossulaar",{"lang":822,"names":823},"eu",[816],{"lang":825,"names":826},"fa",[827],"گروسولار",{"lang":829,"names":830},"fi",[831],"Grossulaari",{"lang":833,"names":834},"fr",[835],"grossulaire",{"lang":837,"names":838},"gl",[839],"Grosularia",{"lang":841,"names":842},"he",[843],"גרוסולר",{"lang":845,"names":846},"hu",[847],"grosszulár",{"lang":849,"names":850},"hy",[851,852],"գրոսուլյարիտ Կոպիտ հատիկավոր Նուռ","Գրոսսուլար",{"lang":854,"names":855},"it",[856],"Grossularia",{"lang":858,"names":859},"ja",[860],"灰礬柘榴石",{"lang":862,"names":863},"ka",[864],"გროსულარი",{"lang":866,"names":867},"kk",[868],"Гроссуляр",{"lang":870,"names":871},"lt",[872],"Grosuliaras",{"lang":874,"names":875},"mk",[876],"Гросулар",{"lang":878,"names":879},"nb",[880],"grossular",{"lang":882,"names":883},"nl",[820,884],"tsavoriet",{"lang":886,"names":887},"nn",[880],{"lang":889,"names":890},"pl",[7],{"lang":892,"names":893},"ru",[868],{"lang":895,"names":896},"sl",[897,898],"grosular","grosularit",{"lang":900,"names":901},"sr",[902],"гросулар",{"lang":904,"names":905},"sv",[7],{"lang":907,"names":908},"tg",[868],{"lang":910,"names":911},"th",[912],"กรอสซูลาร์",{"lang":914,"names":915},"uk",[916],"Гросуляр",{"lang":918,"names":919},"uz",[920],"Grossulyar",{"lang":922,"names":923},"zh",[924],"鈣鋁榴石","Q220373",{"history":927,"applications":931},{"markdown":928,"model_version":929,"prompt_version":930,"reviewed_at":11},"The name **grossular** is botanical — it borrows from *grossularia*, the Latin term for gooseberry. The first crystals to wear it were small, pale-green stones plucked from a Siberian riverbed, and they did resemble unripe gooseberries.\n\nThe mineral entered the literature under a different name. In 1803, the German mineralogist Abraham Gottlob Werner described an orange-brown variety from Sri Lanka and called it *Kanelstein* — cinnamon stone[1]. Werner's reddish-brown specimen survives in the modern nomenclature as **hessonite**: the variety name comes from the Greek *hēssōn* — lesser — a nod to its slightly lower density than other red garnets[2]. Five years later, in 1808, Werner returned to the same calcium-aluminium species and renamed it *grossularite* after green crystals found in eastern Siberia, whose tint matched a gooseberry[1]. The status of grossular as a recognised mineral is formally tracked from 1811[3].\n\nThe type locality sits in eastern Siberia, at the riverbank where the Vilyui — also written *Wilui* in older German sources — meets the Akhtaragda. Pale-green stones from that confluence are still labelled *Wiluite garnet* in 19th-century collections, even though *viluite* itself is now a separate mineral.\n\nIn 1908, the British-South African geologist Arthur Lewis Hall identified a massive, opaque green grossular in the old Transvaal province of South Africa, north of the Vaal River[4]. Early miners took it for true jade. The trade name **Transvaal jade** has stuck, even though the stone is grossular and shares nothing mineralogically with either jadeite or nephrite[4].\n\nThe most consequential modern chapter is a gem story. In 1967, the British gem prospector and geologist Campbell R. Bridges found a deposit of intensely green grossular in the Simanjiro District of north-east Tanzania[5]. Tanzania refused him export permits. Reasoning that the geology continued across the border, Bridges began prospecting in Kenya, and in 1971 he located the same material there and secured a mining permit[5]. That same year, the International Mineralogical Association formally discouraged the older *-ite* suffix; the species is now simply **grossular** in the official lists, though *grossularite* still appears on field labels and trade catalogues[6].\n\nFor seven years the Kenyan green stone remained known only to mineralogists. That changed in 1974, when Tiffany and Co launched a marketing campaign that introduced the gem to a wider public[7]. The name **tsavorite** was proposed by Tiffany's then-president Henry Platt, in honour of Tsavo East National Park in Kenya[7]. The region on the Kenya–Tanzania border remains the only commercial source of gem-quality tsavorite.","claude-opus-4-7","1.7.0",{"markdown":932,"model_version":929,"prompt_version":930,"reviewed_at":11},"Grossular's working life today is almost entirely a gem story[1]. The harder, iron-rich garnet almandine carries the abrasive market for sandblasting and waterjet powder. Grossular itself has no significant share of that trade. Its place is on a jeweller's bench, on a lapidary's wheel, and in the petrologist's hand lens.\n\n### As a gemstone\n\nTwo varieties carry most of the demand. **Tsavorite** is the intensely green, chromium- and vanadium-bearing form from the Kenya–Tanzania border, and the most sought-after gem variety of the species[2]. **Hessonite**, the orange to reddish-brown variety also called cinnamon stone, is the cheaper and more widely set of the two: nearly every faceted grossular on the market is orange to reddish-brown[3].\n\nA third, opaque green form — sold as **Transvaal jade** or **South African jade** — is cut and polished as a carving and ornamental stone[4]. It is not jade in the mineralogical sense (it is neither jadeite nor nephrite), but its massive habit and uniform colour take a high polish, and it is worked into beads, cabochons, and small sculptural pieces.\n\n### As a research mineral\n\nOutside the gem trade, grossular's most consistent use is as a witness mineral for the petrologist — the geologist who reads rock origins from mineral assemblages. Grossular forms when calcium-rich rocks are cooked and squeezed under metamorphism, and finding it in an outcrop is itself a clue to that history[5]. It is the index garnet of contact-metamorphosed limestones — *skarns* — and of *rodingites*, the calcium-altered slivers found inside serpentinised ultramafic rocks. Collectors and museum buyers maintain a steady, modest demand for well-crystallised specimens from classic localities."]