[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:46688":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":21,"key_elements":22,"impurities":23,"cim":11,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":26,"publication_year":27,"discovery_year":11,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":29,"strunz10ed4":11,"dana8ed1":30,"dana8ed2":30,"dana8ed3":30,"dana8ed4":30,"csystem":31,"cclass":32,"spacegroup":33,"spacegroupset":34,"a":35,"b":36,"c":37,"alpha":11,"beta":38,"gamma":11,"aerror":39,"berror":32,"cerror":40,"alphaerror":11,"betaerror":40,"gammaerror":11,"va3":11,"z":41,"csmetamict":13,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":42,"tlform":43,"hmin":11,"hmax":11,"hardtype":11,"vhnmin":11,"vhnmax":11,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":11,"dmeas2":11,"dcalc":44,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":45,"commentluster":46,"diapheny":47,"streak":48,"colour":48,"commentcolor":11,"colors":49,"streak_colors":51,"luminescence":11,"uv":52,"cleavage":53,"cleavagetype":54,"fracturetype":11,"tenacity":55,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":11,"opticalalpha2":11,"opticalalphaerror":11,"opticalbeta":11,"opticalbeta2":11,"opticalbetaerror":11,"opticalgamma":11,"opticalgamma2":11,"opticalgammaerror":11,"opticalomega":11,"opticalomega2":11,"opticalomegaerror":11,"opticalepsilon":11,"opticalepsilon2":11,"opticalepsilonerror":11,"opticaln":11,"opticaln2":11,"opticalnerror":11,"optical2vcalc":11,"optical2vcalc2":11,"optical2vcalcerror":11,"optical2vmeasured":11,"optical2vmeasured2":11,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":56,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":57,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":58,"other":11,"industrial":11,"occurrence":59,"otheroccurrence":11,"type_specimen_store":60,"description_short":61,"aboutname":62,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":63,"reviewed_at":11,"variety_of":11,"varieties":64,"group_members":65,"associates":66,"confused_with":67,"type_localities":68,"occurrence_total":75,"citations":76,"images":93,"structures":94,"synonyms":95,"language_names":98,"wikidata_qid":112,"texts":113},46688,"1:1:46688:6","5e9eda6d-3094-4f74-aaa5-f8c467616801","Penberthycroftite","Pbc",0,"mineral",null,11,false,"[Al\u003Csub>6\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>9\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>5\u003C\u002Fsub>]·8H\u003Csub>2\u003C\u002Fsub>O","[Al\u003Csub>6\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>9\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>5\u003C\u002Fsub>] · 8H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20],"Al","As","O","H",[17,18,19,20],[18],"S, (Fe)",[25],"APPROVED",2015,2016,"8","D","0","Monoclinic",5,14,"P21\u002Fc ","7.753","24.679","15.679","94.19",2,3,4,"Tufts and sprays of ultrathin (sub-micrometre) rectangular or bladelike laths, with lateral dimensions generally less than 20µm.","Dense lath-like crystal aggregates within a matrix of quartz, chamosite and arsenopyrite."," 2.18","Vitreous,Pearly","Crusts have  dull and nearly waxy lustre.","Translucent","White",[50],"white",[50],"none","Basal cleavage on {010}","Perfect","flexible","Non-pleochroic","The lower index of refraction is 1.520(1) and the upper index is 1.532(1)","Two endotherms corresponding to water evolution were recorded at 94 and 180°C, and an endotherm due to SO\u003Csub>3\u003C\u002Fsub> evolution occurred at 481°C; will from from bettertonite at  67-97\u003Csup>o\u003C\u002Fsup>C, the process being associated with 8% contraction of laye","The arsenate mineral assemblage at Penberthy Croft is interpreted as having formed from prolonged oxidation of various sulphides in the upper parts of lodes and veins within the mine and on dump material.","Co-type material is deposited in the mineralogical collections of the Natural History Museum, London, Registration number BM.2015.3 and the Museum Victoria, Australia, registration number M53452","Closely related to bettertonite, which is a higher hydrate. Also chemically similar to liskeardite, bulachite, and hydroniumpharmacoalumite; and to mansfieldite.\r\n\r\nThe structure is heteropolyhedral layered one, with undulating layering || {010}. In th...","The mineral is named for the location where the mineral was found, Penberthy Croft mine.","2025-08-11 12:15:13",[],[],[],[],[69],{"id":70,"txt":71,"latitude":72,"longitude":73,"country":74},1251,"Penberthy Croft Mine, St Hilary, Cornwall, England, UK",50.141153,-5.4232444,"UK",1,[77,81,85,89],{"id":78,"year":26,"html":79,"doi":80},244676,"Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015, CNMNC Newsletter 26. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  79 (4) 941-947 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2015.079.4.05'>doi:10.1180\u002Fminmag.2015.079.4.05\u003C\u002Fa>","10.1180\u002Fminmag.2015.079.4.05",{"id":82,"year":27,"html":83,"doi":84},244846,"Grey, I. E., Betterton, J., Kampf, A. R., Macrae, C. M., Shanks, F. L., Price, J. R. (2016) Penberthycroftite, [Al\u003Csub>6\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>9\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>5\u003C\u002Fsub>]·8H\u003Csub>2\u003C\u002Fsub>O, a second new hydrated aluminium arsenate mineral from the Penberthy Croft mine, St. Hilary, Cornwall, UK. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  80 (7) 1149-1160 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2016.080.069'>doi:10.1180\u002Fminmag.2016.080.069\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FMM80_1149.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.2016.080.069",{"id":86,"year":27,"html":87,"doi":88},244849,"Grey, Ian E., Brand, Helen E. A., Betterton, John (2016) Dehydration phase transitions in new aluminium arsenate minerals from the Penberthy Croft mine, Cornwall, UK. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  80 (7) 1205-1217 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2016.080.126'>doi:10.1180\u002Fminmag.2016.080.126\u003C\u002Fa>","10.1180\u002Fminmag.2016.080.126",{"id":90,"year":91,"html":92,"doi":11},16966618,2017,"(2017) Penberthycroftite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fpenberthycroftite.pdf' class='refpdflink'>\u003C\u002Fa>",[],[],[96,97],"IMA2015-025","Penberthycroftiet",[99,103,108],{"lang":100,"names":101},"ca",[102],"penberthycroftita",{"lang":104,"names":105},"de",[106,107],"IMA 2015-025","Penberthycroftit",{"lang":109,"names":110},"eu",[111],"Penberthycroftita","Q21683070",{"history":11,"applications":11}]