[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:55693":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":14,"elements":15,"sigelements":18,"key_elements":19,"impurities":11,"cim":11,"ima_status":20,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":22,"discovery_year":11,"strunz10ed1":23,"strunz10ed2":24,"strunz10ed3":25,"strunz10ed4":11,"dana8ed1":11,"dana8ed2":11,"dana8ed3":11,"dana8ed4":11,"csystem":26,"cclass":27,"spacegroup":11,"spacegroupset":28,"a":29,"b":11,"c":30,"alpha":11,"beta":11,"gamma":11,"aerror":31,"berror":11,"cerror":32,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":33,"csmetamict":13,"commentcrystal":34,"twinning":11,"tranglide":11,"parting":35,"epitaxidescription":11,"morphology":11,"tlform":36,"hmin":11,"hmax":11,"hardtype":11,"vhnmin":11,"vhnmax":11,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":11,"dmeas2":11,"dcalc":37,"dmeaserror":11,"dcalcerror":11,"commentdense":38,"lustre":11,"lustretype":39,"commentluster":11,"diapheny":40,"streak":41,"colour":42,"commentcolor":11,"colors":43,"streak_colors":46,"luminescence":11,"uv":47,"cleavage":11,"cleavagetype":48,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":49,"opticalsign":50,"opticalalpha":11,"opticalalpha2":11,"opticalalphaerror":11,"opticalbeta":11,"opticalbeta2":11,"opticalbetaerror":11,"opticalgamma":11,"opticalgamma2":11,"opticalgammaerror":11,"opticalomega":51,"opticalomega2":11,"opticalomegaerror":11,"opticalepsilon":52,"opticalepsilon2":11,"opticalepsilonerror":11,"opticaln":11,"opticaln2":11,"opticalnerror":11,"optical2vcalc":11,"optical2vcalc2":11,"optical2vcalcerror":11,"optical2vmeasured":11,"optical2vmeasured2":11,"optical2vmeasurederror":11,"rimin":53,"rimax":54,"opticaldispersion":11,"opticalpleochroism":55,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":56,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":57,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":58,"other":59,"industrial":11,"occurrence":60,"otheroccurrence":11,"type_specimen_store":61,"description_short":62,"aboutname":63,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":64,"reviewed_at":11,"variety_of":11,"varieties":65,"group_members":66,"associates":67,"confused_with":68,"type_localities":83,"occurrence_total":12,"citations":90,"images":106,"structures":107,"synonyms":125,"language_names":127,"wikidata_qid":137,"texts":138},55693,"1:1:55693:0","3826d5cd-04e7-4d7c-aa66-d513bd3ff25f","Pertoldite","Pert",0,"mineral",null,1,false,"GeO\u003Csub>2\u003C\u002Fsub>",[16,17],"Ge","O",[16,17],[16],[21],"APPROVED",2021,"4","D","E","Trigonal",12,"0","4.980","5.644",5,4,3,"Space group is P3\u003Csub>1\u003C\u002Fsub>21 or P3\u003Csub>2\u003C\u002Fsub>21","none","Aggregates resembling cotton tufts, up to 1 mm in size, composed of acicular crystals up to ~1 μm thick and up to 1 mm in length. Individual crystals are distorted, resembling textile fibers.","4.30","4.18 g\u002Fcm3  was calculated based on the empirical formula and 4.30 g\u002Fcm3  based on the ideal formula. ","Silky","Translucent","White","White to brownish",[44,45],"white","brown",[44],"Not fluorescent.","None Observed","Uniaxial","+","1.6510","1.6771",1.651,1.6771,"Non-pleochroic","Anisotropic and forms thin (~1 µm) distorted needles or fibers with an average refraction index n = 1.670(5).\r\n\r\nThe R.I. values used to derive the birefringence were measured on synthetic material (Lignie \u003Cem>et al.\u003C\u002Fem>, 2014)","\u003Carticle id=XXXX>Parallel extinction.\u003C\u002Farticle>","Melting point 1116 °C.","Slightly soluble in water (0.45 g\u002F100 ml at 25 °C), soluble in HCl, HF and NaOH.","Formed by direct crystallization from hot (400–500 °C) gasses containing Cl and F as transporting agents at a depth of 40–60 cm under the surface of a burning coal mine dump.","Collections of the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Praha 9, Czech Republic, catalogue number P1P 31\u002F2021.","The true Ge analogue of quartz.","Named in honor of Dr. Zdeněk Pertold, CSc (December 22, 1933, Prague, Czechia – October 25, 2020), the professor of economic geology in the Department of Geochemistry, Mineralogy and Mineral Resources of the Faculty of Sciences of the Charles University in Prague. ","2025-08-11 12:15:24",[],[],[],[69,76],{"id":70,"name":71,"entrytype":9,"csystem":72,"ima_formula":14,"mindat_formula":14,"hmin":73,"hmax":74,"dmeas":28,"dcalc":75,"primary_image_id":11},330,"Argutite","Tetragonal",6,7,"6.28",{"id":77,"name":78,"entrytype":9,"csystem":26,"ima_formula":79,"mindat_formula":79,"hmin":74,"hmax":74,"dmeas":80,"dcalc":81,"primary_image_id":82},3337,"Quartz","SiO\u003Csub>2\u003C\u002Fsub>","2.65","2.66",30579,[84],{"id":85,"txt":86,"latitude":87,"longitude":88,"country":89},766,"Kateřina Coal Mine, Radvanice, Trutnov District, Hradec Králové Region, Czech Republic",50.5626316,16.064415,"Czech Republic",[91,95,99,103],{"id":92,"year":93,"html":94,"doi":11},16143533,2014,"Lignie, A., Zhou, W., Armand, P., Rufflé, B., Mayet, R., Debray, J., Hermet, P., Ménaert, B., Thomas, P. and Papet, P. (2014), High-Temperature Elastic Moduli of Flux-Grown α-GeO2 Single Crystal. ChemPhysChem, 15: 118-125. https:\u002F\u002Fdoi.org\u002F10.1002\u002Fcphc.201300793 (for refractive indices data)",{"id":96,"year":22,"html":97,"doi":98},12999942,"Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2021) CNMNC Newsletter 64. IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  86 (1) 178-182 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2021.93'>doi:10.1180\u002Fmgm.2021.93\u003C\u002Fa>","10.1180\u002Fmgm.2021.93",{"id":100,"year":101,"html":102,"doi":11},16693238,2022,"Žáček, V., Škoda, R., Laufek, F., Sejkora, J., Haifler, J. (2022) Pertoldite, trigonal GeO\u003Csub>2\u003C\u002Fsub>, the germanium analog of α-quartz: a new mineral from Radvanice, Czech Republic. \u003Ci>Journal of GEOsciences\u003C\u002Fi>,  67 (3) 243-251 \u003Ca target='_blank' href='http:\u002F\u002Fwww.jgeosci.org\u002Fcontent\u002Fjgeosci.355_Zacek.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":104,"year":101,"html":105,"doi":11},16966650,"(2022) Pertoldite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fhandbookofmineralogy.org\u002Fpdfs\u002FPertoldite.pdf' class='refpdflink'>\u003C\u002Fa>",[],[108,115,120],{"id":109,"url":110,"label":111,"formula":112,"spacegroup":113,"year":114},10980,"\u002Fcif\u002F10980.cif","Yamanaka 1991","Ge O2","P 32 2 1",1991,{"id":116,"url":117,"label":118,"formula":112,"spacegroup":113,"year":119},10985,"\u002Fcif\u002F10985.cif","Gibbs 1988",1988,{"id":121,"url":122,"label":123,"formula":112,"spacegroup":113,"year":124},10986,"\u002Fcif\u002F10986.cif","Smith 1964",1964,[126],"Pertoldiet",[128,132],{"lang":129,"names":130},"ca",[131],"pertoldita",{"lang":133,"names":134},"de",[135,136],"IMA 2021-074","Pertoldit","Q110285986",{"history":11,"applications":11}]