[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:398":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":18,"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":19,"strunz10ed2":19,"strunz10ed3":19,"strunz10ed4":8,"dana8ed1":19,"dana8ed2":19,"dana8ed3":19,"dana8ed4":19,"csystem":8,"cclass":8,"spacegroup":8,"spacegroupset":19,"a":8,"b":8,"c":8,"alpha":8,"beta":8,"gamma":8,"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":19,"vhnmax":19,"vhnerror":8,"vhng":8,"vhns":8,"commenthard":8,"dmeas":19,"dmeas2":19,"dcalc":19,"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":8,"opticalalpha2":19,"opticalalphaerror":8,"opticalbeta":8,"opticalbeta2":19,"opticalbetaerror":8,"opticalgamma":8,"opticalgamma2":19,"opticalgammaerror":8,"opticalomega":8,"opticalomega2":19,"opticalomegaerror":8,"opticalepsilon":8,"opticalepsilon2":19,"opticalepsilonerror":8,"opticaln":8,"opticaln2":8,"opticalnerror":8,"optical2vcalc":8,"optical2vcalc2":8,"optical2vcalcerror":8,"optical2vmeasured":8,"optical2vmeasured2":8,"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":8,"rock_parent":8,"rock_parent2":8,"rock_root":20,"rock_bgs_code":8,"meteoritical_code":8,"updttime":21,"reviewed_at":8,"variety_of":22,"varieties":30,"group_members":31,"associates":32,"confused_with":33,"type_localities":34,"occurrence_total":35,"citations":36,"images":45,"structures":120,"synonyms":121,"language_names":125,"wikidata_qid":8,"texts":126},398,"1:1:398:8","1a8a5d60-c935-4daa-9201-944a8c49d052","Star Quartz",null,2,"variety",3337,897,false,"SiO\u003Csub>2\u003C\u002Fsub>",[16,17],"Si","O",[16,17],"0",0,"2025-08-11 12:14:18",{"id":11,"name":23,"entrytype":20,"csystem":24,"ima_formula":14,"mindat_formula":14,"hmin":25,"hmax":25,"dmeas":26,"dcalc":27,"strunz10ed1":28,"primary_image_id":29},"Quartz","Trigonal",7,"2.65","2.66","4",30579,[],[],[],[],[],17,[37,41],{"id":38,"year":39,"html":40,"doi":8},16101573,1982,"Mullis, J. (1982): Sternquarz. Schweizer Strahler 6, 125-140.",{"id":42,"year":43,"html":44,"doi":8},16101574,2025,"www.mineralienatlas.de (n.d.) \u003Ca target='_blank' rel='nofollow' href='https:\u002F\u002Fwww.mineralienatlas.de\u002Flexikon\u002Findex.php\u002FMineralienportrait\u002FQuarz\u002FSternquarz'>https:\u002F\u002Fwww.mineralienatlas.de\u002Flexikon\u002Findex.php\u002FMineralienportrait\u002FQuarz\u002FSternquarz\u003C\u002Fa>",[46,56,62,71,81,88,96,102,112],{"id":47,"source_url":48,"license_code":49,"credit_html":50,"title":51,"description":52,"author":53,"original_width":54,"original_height":55},80432,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37186203","CC BY 3.0","Kristýna Rychlovská, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37186203\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hvězdovec.JPG","\"Star quartz\" - unique form of quarz. Found in hill Straznik, by village Perimov (Czech Republic), exhibited in Krkonosske muzeum Jilemnice.","Kristýna Rychlovská",2272,1704,{"id":57,"source_url":58,"license_code":49,"credit_html":59,"title":60,"description":61,"author":53,"original_width":54,"original_height":55},80433,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37186920","Kristýna Rychlovská, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37186920\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hvězdovec2.JPG","\"Star quartz\", unique form of quartz. Found on hill Straznik by village Perimov (Czech republic). Exhibited in Krkonosske muzeum Jilemnice.",{"id":63,"source_url":64,"license_code":65,"credit_html":66,"title":67,"description":68,"author":53,"original_width":69,"original_height":70},80434,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37187133","CC BY-SA 4.0","Kristýna Rychlovská, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=37187133\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hvězdovec3.jpg","\"Star quartz\", unique form of quartz. Found on hill Straznik by village Perimov (Czech republic). This stone come from collection of Mr. and Mrs. Valek.",1917,1669,{"id":72,"source_url":73,"license_code":74,"credit_html":75,"title":76,"description":77,"author":78,"original_width":79,"original_height":80},80437,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84622700","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84622700\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Star quartz (Czech Republic) 1 (34503939151).jpg","\u003Cp>Quartz from the Czech Republic. (Wayne State University collection, Detroit, Michigan, USA)\n\u003C\u002Fp>\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 over 5100 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>The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2).  All other silicates have silica + impurities.  Many silicates have a significant percentage of aluminum (the aluminosilicates).\n\u003C\u002Fp>\u003Cp>Quartz (silicon dioxide\u002Fsilica - SiO2) is the most common mineral in the Earth's crust.  It is composed of the two most abundant elements in the crust - oxygen and silicon.  It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture.  Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.\n\u003C\u002Fp>\u003Cp>The Bohemian sample shown above consists of many closely packed \"star quartz\" masses.  Each \"star\" is a radiating spray of twinned quartz crystals.\n\u003C\u002Fp>\u003Cp>Locality: unrecorded\u002Fundisclosed site in the Czech Republic (but possibly from Straznik, Perimov, Kilemnice, Liberec Region, Bohemia)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of quartz:\n\u003C\u002Fp>\n<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fgallery.php?min=3337\">http:\u002F\u002Fwww.mindat.org\u002Fgallery.php?min=3337\u003C\u002Fa>\" rel=\"nofollow\">www.mindat.org\u002Fgallery.php?min=3337<\u002Fa>","James St. John",2582,2701,{"id":82,"source_url":83,"license_code":74,"credit_html":84,"title":85,"description":77,"author":78,"original_width":86,"original_height":87},80438,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84622703","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84622703\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Star quartz (Czech Republic) 2 (34503920031).jpg",3055,3000,{"id":89,"source_url":90,"license_code":74,"credit_html":91,"title":92,"description":93,"author":78,"original_width":94,"original_height":95},80449,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=165241537","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=165241537\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Star quartz (Czech Republic) 4.jpg","Quartz from the Czech Republic. (Wayne State University collection, Detroit, Michigan, USA)\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 over 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>The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2).  All other silicates have silica + impurities.  Many silicates have a significant percentage of aluminum (the aluminosilicates).\n\u003C\u002Fp>\u003Cp>Quartz (silicon dioxide\u002Fsilica - SiO2) is the most common mineral in the Earth's crust.  It is composed of the two most abundant elements in the crust - oxygen and silicon.  It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture.  Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.\n\u003C\u002Fp>\u003Cp>The Bohemian sample seen here consists of many closely packed \"star quartz\" masses.  Each \"star\" is a radiating spray of twinned quartz crystals.\n\u003C\u002Fp>\u003Cp>Locality: unrecorded\u002Fundisclosed site in the Czech Republic (but possibly from Straznik, Perimov, Kilemnice, Liberec Region, Bohemia)\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of quartz:\n\u003C\u002Fp>\nwww.mindat.org\u002Fgallery.php?min=3337",1997,1923,{"id":97,"source_url":98,"license_code":74,"credit_html":99,"title":100,"description":93,"author":78,"original_width":101,"original_height":69},80450,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=165241541","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=165241541\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Star quartz (Czech Republic) 3.jpg",2005,{"id":103,"source_url":104,"license_code":105,"credit_html":106,"title":107,"description":108,"author":109,"original_width":110,"original_height":111},80431,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153579","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153579\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Quartz-181681.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa> (Var.: Star Quartz)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Strážník, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPe%C5%99imov\" class=\"extiw\" title=\"en:Peřimov\">Peřimov\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJilemnice\" class=\"extiw\" title=\"en:Jilemnice\">Jilemnice (Starkenbach)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLiberec_Region\" class=\"extiw\" title=\"en:Liberec Region\">Liberec Region\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBohemia\" class=\"extiw\" title=\"en:Bohemia\">Bohemia (Böhmen; Boehmen)\u003C\u002Fa>, Czech Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-185981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.0 x 6.3 x 4.0 cm.\u003C\u002Fdd>\n\u003Cdd>A fascinating, old-time quartz specimen from the Richard Hauck Quartz Collection. Radiating, star-like, milky quartz crystals cover all sides of this very showy piece and every side presents a different perspective. These specimens are so distinctive, that they are called \"star quartz.\"\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",550,546,{"id":113,"source_url":114,"license_code":74,"credit_html":115,"title":116,"description":117,"author":118,"original_width":119,"original_height":87},80436,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84574841","Jan Helebrant, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84574841\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Star quartz - rock crystal - SiO2 (10974703266).jpg","\u003Cp>star quartz - rock crystal - SiO2\nlocality: Borovec, Czech Republic\nphoto (c) 2013 Jan Helebrant\n\u003C\u002Fp>\n<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.juhele.webnode.cz\">http:\u002F\u002Fwww.juhele.webnode.cz\u003C\u002Fa>\" rel=\"nofollow\">www.juhele.webnode.cz<\u002Fa>","Jan Helebrant",4000,[],[122,123,124],"Asterated Quartz","Asteriated quartz","Sternquarz",[],{"history":8,"applications":8}]