[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:9252":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":8,"polytypeof":8,"groupid":8,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":8,"ima_formula":8,"elements":15,"sigelements":21,"key_elements":8,"impurities":8,"cim":8,"ima_status":8,"ima_notes":8,"ima_history":8,"approval_year":8,"publication_year":8,"discovery_year":8,"strunz10ed1":22,"strunz10ed2":22,"strunz10ed3":22,"strunz10ed4":8,"dana8ed1":22,"dana8ed2":22,"dana8ed3":22,"dana8ed4":22,"csystem":8,"cclass":8,"spacegroup":8,"spacegroupset":22,"a":22,"b":22,"c":22,"alpha":22,"beta":22,"gamma":22,"aerror":8,"berror":8,"cerror":8,"alphaerror":8,"betaerror":8,"gammaerror":8,"va3":8,"z":8,"csmetamict":13,"commentcrystal":8,"twinning":8,"tranglide":8,"parting":8,"epitaxidescription":8,"morphology":8,"tlform":8,"hmin":8,"hmax":8,"hardtype":8,"vhnmin":22,"vhnmax":22,"vhnerror":8,"vhng":8,"vhns":8,"commenthard":8,"dmeas":22,"dmeas2":22,"dcalc":22,"dmeaserror":8,"dcalcerror":8,"commentdense":8,"lustre":8,"lustretype":8,"commentluster":8,"diapheny":8,"streak":8,"colour":8,"commentcolor":8,"colors":8,"streak_colors":8,"luminescence":8,"uv":8,"cleavage":8,"cleavagetype":8,"fracturetype":8,"tenacity":8,"commentbreak":8,"opticaltype":8,"opticalsign":8,"opticalalpha":22,"opticalalpha2":22,"opticalalphaerror":8,"opticalbeta":22,"opticalbeta2":22,"opticalbetaerror":8,"opticalgamma":22,"opticalgamma2":22,"opticalgammaerror":8,"opticalomega":22,"opticalomega2":22,"opticalomegaerror":8,"opticalepsilon":22,"opticalepsilon2":22,"opticalepsilonerror":8,"opticaln":22,"opticaln2":22,"opticalnerror":8,"optical2vcalc":22,"optical2vcalc2":22,"optical2vcalcerror":8,"optical2vmeasured":22,"optical2vmeasured2":22,"optical2vmeasurederror":8,"rimin":8,"rimax":8,"opticaldispersion":8,"opticalpleochroism":8,"opticalpleochorismdesc":8,"opticalbirefringence":8,"opticalcomments":8,"opticalcolour":8,"opticalinternal":8,"opticaltropic":8,"opticalanisotropism":8,"opticalbireflectance":8,"opticalextinction":8,"opticalr":8,"specdispm":8,"ir":8,"electrical":8,"magnetism":8,"thermalbehaviour":8,"other":8,"industrial":8,"occurrence":8,"otheroccurrence":8,"type_specimen_store":8,"description_short":8,"aboutname":23,"rock_parent":8,"rock_parent2":8,"rock_root":24,"rock_bgs_code":8,"meteoritical_code":8,"updttime":25,"reviewed_at":8,"variety_of":26,"varieties":35,"group_members":36,"associates":37,"confused_with":46,"type_localities":47,"occurrence_total":48,"citations":49,"images":60,"structures":130,"synonyms":131,"language_names":141,"wikidata_qid":8,"texts":142},9252,"1:1:9252:0","e072e475-604c-453f-84f0-56ff60975663","Sericite",null,2,"variety",2815,10557,false,"KAl\u003Csub>2\u003C\u002Fsub>(AlSi\u003Csub>3\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>",[16,17,18,19,20],"Al","Si","O","K","H",[16,17,18,19,20],"0","Named in 1852 by Karl\u002FCarl List from the Greek seirος meaning \"silken\".",0,"2026-03-29 19:00:22",{"id":11,"name":27,"entrytype":24,"csystem":28,"ima_formula":29,"mindat_formula":14,"hmin":30,"hmax":30,"dmeas":31,"dcalc":32,"strunz10ed1":33,"primary_image_id":34},"Muscovite","Monoclinic","KAl\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>3\u003C\u002Fsub>Al)O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",2.5,"2.77","2.83","9",30243,[],[],[38],{"id":39,"name":40,"entrytype":24,"csystem":41,"ima_formula":42,"mindat_formula":42,"hmin":43,"hmax":43,"dmeas":44,"dcalc":45,"primary_image_id":8},1512,"Ferrocarpholite","Orthorhombic","Fe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>",5.5,"3.04","3.05",[],[],7807,[50,55],{"id":51,"year":52,"html":53,"doi":54},6417,1970,"Henley, K. J. (1970) Cupriferous sericite from the Sar Cheshmeh porphyry copper ore, Kerman Province, Iran. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  37 (292) 945-947 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1970.037.292.15'>doi:10.1180\u002Fminmag.1970.037.292.15\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_37\u002F37-292-945.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1970.037.292.15",{"id":56,"year":57,"html":58,"doi":59},395139,2005,"Zhang, Ming; Wang, Ling; Hirai, Shigeto; Redfern, Simon A.T.; Salje, Ekhard K.H. (2005) Dehydroxylation and CO\u003Csub>2\u003C\u002Fsub> incorporation in annealed mica (sericite): An infrared spectroscopic study. \u003Ci>American Mineralogist\u003C\u002Fi>,  90 (1). 173-180 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2005.1615'>doi:10.2138\u002Fam.2005.1615\u003C\u002Fa>","10.2138\u002Fam.2005.1615",[61,71,78,88,95,100,110,117,124],{"id":62,"source_url":63,"license_code":64,"credit_html":65,"title":66,"description":67,"author":68,"original_width":69,"original_height":70},79106,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2640391","CC BY-SA 2.0","Rama., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2640391\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Sericite phyllite mg 7957.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSericite\" class=\"extiw\" title=\"en:Sericite\">Sericite\u003C\u002Fa> \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002Fphyllite\" class=\"extiw\" title=\"en:phyllite\">phyllite\u003C\u002Fa>. Photographed at \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGotthard_Base_Tunnel\" class=\"extiw\" title=\"en:Gotthard Base Tunnel\">Gotthard Base Tunnel\u003C\u002Fa> exhibition.","Rama.",3558,2375,{"id":72,"source_url":73,"license_code":64,"credit_html":74,"title":75,"description":67,"author":68,"original_width":76,"original_height":77},79107,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2640393","Rama., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2640393\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Sericite phyllite mg 7959.jpg",4368,2912,{"id":79,"source_url":80,"license_code":81,"credit_html":82,"title":83,"description":84,"author":85,"original_width":86,"original_height":87},79117,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130438294","CC BY 4.0","Henk Smeets – tomeikminerals.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130438294\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Sericite12767.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSericite\" class=\"extiw\" title=\"en:Sericite\">Sericite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 0.5 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"https:\u002F\u002Fwww.mindat.org\u002Floc-1782.html\">locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Henk Smeets – tomeikminerals.com",1700,1133,{"id":89,"source_url":90,"license_code":91,"credit_html":92,"title":27,"description":8,"author":8,"original_width":93,"original_height":94},89279,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65409","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65409\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",1000,889,{"id":96,"source_url":97,"license_code":91,"credit_html":98,"title":27,"description":8,"author":8,"original_width":93,"original_height":99},89280,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65359","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F65359\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",739,{"id":101,"source_url":102,"license_code":103,"credit_html":104,"title":105,"description":106,"author":107,"original_width":108,"original_height":109},79108,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176013","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176013\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Quartz-Sericite-Chlorite-Group-142246.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSericite\" class=\"extiw\" title=\"en:Sericite\">Sericite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChlorite_group\" class=\"extiw\" title=\"en:Chlorite group\">Chlorite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTourmaline\" class=\"extiw\" title=\"en:Tourmaline\">Schorl\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAra%C3%A7ua%C3%AD\" class=\"extiw\" title=\"en:Araçuaí\">Araçuaí\u003C\u002Fa>, Jequitinhonha valley, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinas_Gerais\" class=\"extiw\" title=\"en:Minas Gerais\">Minas Gerais\u003C\u002Fa>, Southeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-6421.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 10.9 x 9.9 x 7.1 cm.\u003C\u002Fdd>\n\u003Cdd>This is a huge quartz crystal with glass-clear faces that give a window into a scenic \"garden\" in the interior, consisting of sericite, chlorite and little thin needles of schorl tourmaline. Ex. J.R. Glover Collection. This is spectacular, like a garden inside!!! . The interior looks almost like a mossy hill with new snow on it! These \"picture quartzes\" from Brazil are really unique and fascinating, but so many of them are polished because the natural faces are not in good shape. This one is both in its natural state, and unusually large!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",520,600,{"id":111,"source_url":112,"license_code":103,"credit_html":113,"title":114,"description":106,"author":107,"original_width":115,"original_height":116},79109,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176014","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176014\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Quartz-Sericite-Chlorite-Group-142247.jpg",400,339,{"id":118,"source_url":119,"license_code":103,"credit_html":120,"title":121,"description":122,"author":107,"original_width":109,"original_height":123},79110,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176265","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176265\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Pyrite-Sericite-171555.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPyrite\" class=\"extiw\" title=\"en:Pyrite\">Pyrite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSericite\" class=\"extiw\" title=\"en:Sericite\">Sericite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Cole Mine (Cole shaft; Cole No. 3), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBisbee\" class=\"extiw\" title=\"en:Bisbee\">Bisbee\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWarren_(biogeographic_region)\" class=\"extiw\" title=\"en:Warren (biogeographic region)\">Warren District\u003C\u002Fa>, Mule Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCochise_County,_Arizona\" class=\"extiw\" title=\"en:Cochise County, Arizona\">Cochise County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArizona\" class=\"extiw\" title=\"en:Arizona\">Arizona\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3297.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 12.4 x 6.8 x 6.6 cm.\u003C\u002Fdd>\n\u003Cdd>Here is some interesting material from the famous Bisbee mine that many collectors have not seen: this is sericite, which is basically chalky white volcanic ash - in which are embedded crystals of pyrite that formed within it. Dave Stoudt acquired this piece from the Youngblood estate sale in 1998.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",371,{"id":125,"source_url":126,"license_code":103,"credit_html":127,"title":128,"description":122,"author":107,"original_width":115,"original_height":129},79111,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176266","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176266\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Pyrite-Sericite-171557.jpg",338,[],[132,133,134,135,136,137,138,139,140],"Episericit","Episericita","Episericite","Lepidomorphit","Lepidomorphita","Lepidomorphite","Sericit","Sericita","Serizit",[],{"history":143,"applications":147},{"markdown":144,"model_version":145,"prompt_version":146,"reviewed_at":8},"Run a thumb across the surface of a phyllite — a fine-grained metamorphic rock — and it shines back with a soft, silky sheen. That sheen comes from sericite, and it gave the material its name. The word was coined in 1852 by Karl List, who drew on the Greek *seiros* — silken[1]. The silk reference points back to where silk itself was first worked, the same root that gives the word \"silk\" its history[2].\n\nSericite is a field and microscope term, not a species in its own right. It names very fine, ragged grains and aggregates of white mica — usually muscovite, sometimes the clay mineral illite or the sodium mica paragonite[3]. Because the grains are too small to tell apart by eye, geologists settled on one word for the texture rather than naming the exact mineral each time. The page header shows the muscovite formula because muscovite is the most common ingredient, not because sericite is a distinct mineral.\n\nThe other half of the term's story is a process, not a thing. When hot, mineral-rich water moves through rock — what geologists call hydrothermal alteration — it can break down feldspar, the rock-forming mineral that makes up much of granite. The feldspar turns into a felt of tiny white mica flakes. That conversion is called sericitization, and it often surrounds copper and tin ore deposits[4]. The same fine mica also forms when rock is squeezed and reheated deep in the crust, lending its sheen to phyllite and to schist, a coarser banded metamorphic rock[3].","claude-opus-4-8","1.7.0",{"markdown":148,"model_version":145,"prompt_version":146,"reviewed_at":8},"The same fine white mica sold under the name sericite is, in commercial terms, a grade of muscovite. Ground into a fine powder of small, flat platelets, it works as a filler — an inexpensive bulk material added to a product — and a surface modifier across several industries.\n\nCosmetics are the most visible use. Sericite goes into face powders, foundations, eyeshadows, and skincare products[1]. Its flat platelets give a soft, silky skin feel and good adhesion and spreadability[1]. They also scatter light in a way that softens the look of skin, an effect formulators call a soft-focus optical effect that reduces the visibility of imperfections[1].\n\nIn paint and coatings, the platelets line up flat within the dried film. That alignment improves the barrier against moisture and lowers the film's permeability, which helps anti-corrosion primers and barrier coatings protect the metal underneath[1]. The mineral acts here as a functional extender — a filler that adds useful properties rather than just bulk[1].\n\nEngineering plastics use it for similar reasons. Added to a plastic, sericite improves dimensional stability and reduces warpage in injection-moulded parts[1]. It also serves as a raw material in ceramics such as tiles and insulators, and as an additive in oil and gas drilling mud[2]."]