[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3173":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":21,"key_elements":22,"impurities":23,"cim":24,"ima_status":25,"ima_notes":11,"ima_history":11,"approval_year":27,"publication_year":11,"discovery_year":28,"strunz10ed1":29,"strunz10ed2":30,"strunz10ed3":31,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":35,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":44,"beta":45,"gamma":44,"aerror":46,"berror":47,"cerror":46,"alphaerror":11,"betaerror":46,"gammaerror":11,"va3":11,"z":48,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":49,"hmin":38,"hmax":50,"hardtype":11,"vhnmin":44,"vhnmax":44,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":44,"dmeas2":44,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":52,"commentluster":11,"diapheny":53,"streak":54,"colour":55,"commentcolor":11,"colors":56,"streak_colors":60,"luminescence":11,"uv":11,"cleavage":61,"cleavagetype":62,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":63,"opticalsign":64,"opticalalpha":65,"opticalalpha2":44,"opticalalphaerror":47,"opticalbeta":66,"opticalbeta2":44,"opticalbetaerror":47,"opticalgamma":67,"opticalgamma2":44,"opticalgammaerror":47,"opticalomega":44,"opticalomega2":44,"opticalomegaerror":11,"opticalepsilon":44,"opticalepsilon2":44,"opticalepsilonerror":11,"opticaln":44,"opticaln2":44,"opticalnerror":11,"optical2vcalc":68,"optical2vcalc2":44,"optical2vcalcerror":11,"optical2vmeasured":69,"optical2vmeasured2":70,"optical2vmeasurederror":11,"rimin":71,"rimax":72,"opticaldispersion":73,"opticalpleochroism":74,"opticalpleochorismdesc":75,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":76,"otheroccurrence":11,"type_specimen_store":77,"description_short":78,"aboutname":79,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":80,"reviewed_at":11,"variety_of":11,"varieties":81,"group_members":82,"associates":237,"confused_with":238,"type_localities":239,"occurrence_total":246,"citations":247,"images":274,"structures":300,"synonyms":312,"language_names":314,"wikidata_qid":338,"texts":339},3173,"1:1:3173:4","b618e1cc-49da-4ed6-a688-0e97081a7b06","Petedunnite","Pdu",0,"mineral",null,7630,118,false,"CaZnSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",[17,18,19,20],"Ca","Si","Zn","O",[17,18,19,20],[19],",Al,Fe,Na,","14.7.15",[26],"APPROVED",1983,"1983","9","D","A","15","65","1","3a","5","Monoclinic",5,10,"C2\u002Fc ","9.82","9.00","5.27","0","105.6",2,1,4,"portions of an anhedral crystal consisting of a mosaic of 10-100 μm-sized subgrains containing abundant inclusions.",6,"3.68","Vitreous","Translucent","greenish white","Dark green",[57,58,59],"green","yellow","white",[57,59]," {110}","Distinct\u002FGood","Biaxial","+","1.68","1.69","1.70","88","70","90",1.68,1.7,"r > v strong","Visible","X = Y = light yellow; Z = light green.","metamorphosed stratiform zinc deposit"," Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan; National Museum of Natural History, Washington, D.C., USA (NMNH 162211).","Pyroxene Group - Clinopyroxene Subgroup; see also the Hedenbergite-Petedunnite solid solution.","Named in 1987 by Eric J. Essene and Donald Ralph Peacor in honor of Pete J. Dunn [b. November 10, 1942  USA, d. November 8, 2017 USA], Museum Specialist, Department of Mineral Sciences, Smithsonian Institution, Washington, D.C., who studied and made major contributions to the mineralogy of the Franklin, New Jersey Mining District.","2025-08-11 12:14:22",[],[83,90,96,105,109,115,121,127,131,139,146,152,159,167,172,178,186,193,197,203,209,215,220,224,231],{"id":84,"name":85,"entrytype":9,"csystem":37,"ima_formula":86,"mindat_formula":86,"hmin":50,"hmax":50,"dmeas":87,"dcalc":88,"primary_image_id":89},31,"Aegirine","NaFe\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.5","3.576",257,{"id":91,"name":92,"entrytype":9,"csystem":37,"ima_formula":93,"mindat_formula":94,"hmin":50,"hmax":50,"dmeas":44,"dcalc":44,"primary_image_id":95},32,"Aegirine-augite","(Ca,Na)(Fe\u003Csup>3+\u003C\u002Fsup>,Mg,Fe\u003Csup>2+\u003C\u002Fsup>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Na\u003Csub>a\u003C\u002Fsub>Ca\u003Csub>b\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>c\u003C\u002Fsub>Mg\u003Csub>d\u003C\u002Fsub>)(Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>e\u003C\u002Fsub>Al\u003Csub>f\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>g\u003C\u002Fsub>Mg\u003Csub>h\u003C\u002Fsub>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",28998,{"id":97,"name":98,"entrytype":9,"csystem":37,"ima_formula":99,"mindat_formula":100,"hmin":101,"hmax":50,"dmeas":102,"dcalc":103,"primary_image_id":104},419,"Augite","(Ca,Mg,Fe)\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Ca\u003Csub>x\u003C\u002Fsub>Mg\u003Csub>y\u003C\u002Fsub>Fe\u003Csub>z\u003C\u002Fsub>)(Mg\u003Csub>y1\u003C\u002Fsub>Fe\u003Csub>z1\u003C\u002Fsub>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",5.5,"3.19","3.31",29176,{"id":106,"name":107,"entrytype":9,"csystem":37,"ima_formula":108,"mindat_formula":108,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},43933,"Burnettite","CaVAlSiO\u003Csub>6\u003C\u002Fsub>",{"id":110,"name":111,"entrytype":9,"csystem":37,"ima_formula":112,"mindat_formula":113,"hmin":38,"hmax":50,"dmeas":44,"dcalc":114,"primary_image_id":11},1072,"Clinoenstatite","Mg\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","MgSiO\u003Csub>3\u003C\u002Fsub>","3.210",{"id":116,"name":117,"entrytype":9,"csystem":37,"ima_formula":118,"mindat_formula":118,"hmin":38,"hmax":50,"dmeas":44,"dcalc":119,"primary_image_id":120},1073,"Clinoferrosilite","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","4.068",5851,{"id":122,"name":123,"entrytype":9,"csystem":37,"ima_formula":124,"mindat_formula":124,"hmin":50,"hmax":125,"dmeas":11,"dcalc":126,"primary_image_id":11},55612,"Colomeraite","NaTi\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",7,"3.36",{"id":128,"name":129,"entrytype":9,"csystem":37,"ima_formula":130,"mindat_formula":130,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},38829,"Davisite","CaScAlSiO\u003Csub>6\u003C\u002Fsub>",{"id":132,"name":133,"entrytype":9,"csystem":37,"ima_formula":134,"mindat_formula":134,"hmin":101,"hmax":135,"dmeas":136,"dcalc":137,"primary_image_id":138},1294,"Diopside","CaMgSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",6.5,"3.22","3.278",29614,{"id":140,"name":141,"entrytype":9,"csystem":37,"ima_formula":142,"mindat_formula":143,"hmin":50,"hmax":50,"dmeas":44,"dcalc":144,"primary_image_id":145},1413,"Esseneite","CaFe\u003Csup>3+\u003C\u002Fsup>AlSiO\u003Csub>6\u003C\u002Fsub>","CaFe\u003Csup>3+\u003C\u002Fsup>[AlSiO\u003Csub>6\u003C\u002Fsub>]","3.54",8095,{"id":147,"name":148,"entrytype":9,"csystem":37,"ima_formula":149,"mindat_formula":150,"hmin":11,"hmax":11,"dmeas":11,"dcalc":151,"primary_image_id":11},39426,"Grossmanite","Ca(Ti\u003Csup>3+\u003C\u002Fsup>,Mg,Ti\u003Csup>4+\u003C\u002Fsup>)AlSiO\u003Csub>6\u003C\u002Fsub>","CaTi\u003Csup>3+\u003C\u002Fsup> AlSiO\u003Csub>6\u003C\u002Fsub>","3.41",{"id":153,"name":154,"entrytype":9,"csystem":37,"ima_formula":155,"mindat_formula":155,"hmin":101,"hmax":135,"dmeas":156,"dcalc":157,"primary_image_id":158},1842,"Hedenbergite","CaFe\u003Csup>2+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.56","3.65",11009,{"id":160,"name":161,"entrytype":9,"csystem":37,"ima_formula":162,"mindat_formula":163,"hmin":50,"hmax":50,"dmeas":164,"dcalc":165,"primary_image_id":166},2062,"Jadeite","NaAlSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","Na(Al,Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.24","3.330",29952,{"id":168,"name":169,"entrytype":9,"csystem":37,"ima_formula":170,"mindat_formula":170,"hmin":50,"hmax":50,"dmeas":44,"dcalc":44,"primary_image_id":171},2093,"Jervisite","NaSc\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",4821,{"id":173,"name":174,"entrytype":9,"csystem":37,"ima_formula":175,"mindat_formula":176,"hmin":50,"hmax":50,"dmeas":156,"dcalc":11,"primary_image_id":177},2103,"Johannsenite","CaMnSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","CaMn\u003Csup>2+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",29977,{"id":179,"name":180,"entrytype":9,"csystem":37,"ima_formula":181,"mindat_formula":182,"hmin":50,"hmax":50,"dmeas":183,"dcalc":184,"primary_image_id":185},2154,"Kanoite","MnMgSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","Mn\u003Csup>2+\u003C\u002Fsup>(Mg,Mn\u003Csup>2+\u003C\u002Fsup>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.66","3.60",12947,{"id":187,"name":188,"entrytype":9,"csystem":37,"ima_formula":189,"mindat_formula":190,"hmin":50,"hmax":50,"dmeas":191,"dcalc":184,"primary_image_id":192},2258,"Kosmochlor","NaCr\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","NaCrSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.51",13574,{"id":194,"name":195,"entrytype":9,"csystem":37,"ima_formula":196,"mindat_formula":196,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},39329,"Kushiroite","CaAlAlSiO\u003Csub>6\u003C\u002Fsub>",{"id":198,"name":199,"entrytype":9,"csystem":37,"ima_formula":200,"mindat_formula":200,"hmin":50,"hmax":125,"dmeas":191,"dcalc":201,"primary_image_id":202},2834,"Namansilite","NaMn\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.61",16998,{"id":204,"name":205,"entrytype":9,"csystem":37,"ima_formula":206,"mindat_formula":206,"hmin":135,"hmax":125,"dmeas":44,"dcalc":207,"primary_image_id":208},2846,"Natalyite","NaV\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.55",17059,{"id":210,"name":211,"entrytype":9,"csystem":37,"ima_formula":212,"mindat_formula":213,"hmin":38,"hmax":50,"dmeas":44,"dcalc":44,"primary_image_id":214},2991,"Omphacite","(Ca,Na)(Mg,Fe,Al)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Na\u003Csub>a\u003C\u002Fsub>Ca\u003Csub>b\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>c\u003C\u002Fsub>Mg\u003Csub>d\u003C\u002Fsub>)(Al\u003Csub>e\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>f\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>g\u003C\u002Fsub>Mg\u003Csub>h\u003C\u002Fsub>)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",18103,{"id":216,"name":217,"entrytype":9,"csystem":37,"ima_formula":218,"mindat_formula":100,"hmin":50,"hmax":50,"dmeas":44,"dcalc":44,"primary_image_id":219},3210,"Pigeonite","(Mg,Fe,Ca)\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",19441,{"id":221,"name":222,"entrytype":9,"csystem":37,"ima_formula":223,"mindat_formula":223,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},55453,"Ryabchikovite","CuMgSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",{"id":225,"name":226,"entrytype":9,"csystem":37,"ima_formula":227,"mindat_formula":227,"hmin":135,"hmax":125,"dmeas":228,"dcalc":229,"primary_image_id":230},3733,"Spodumene","LiAlSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.1","3.184",22683,{"id":232,"name":233,"entrytype":9,"csystem":37,"ima_formula":234,"mindat_formula":235,"hmin":11,"hmax":11,"dmeas":11,"dcalc":236,"primary_image_id":11},43890,"Tissintite","(Ca,Na,◻)AlSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Ca,◻)AlSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","3.395",[],[],[240],{"id":241,"txt":242,"latitude":243,"longitude":244,"country":245},6833,"Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA",41.1147222,-74.5872222,"USA",8,[248,252,256,260,265,270],{"id":249,"year":250,"html":251,"doi":11},528225,1987,"Essene, Eric J., Peacor, Donald R. (1987) Petedunnite (CaZnSi2O6), a new zinc clinopyroxene from Franklin, New Jersey, and phase equilibria for zincian pyroxenes. \u003Ci>American Mineralogist\u003C\u002Fi>,  72 (1-2) 157-166 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM72\u002FAM72_157.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":253,"year":254,"html":255,"doi":11},16119836,1997,"Fehr, K.T., Hobelsberger, B. (1997) Experimentelle Bestimmung der chemischen Potentiale von Hedenbergit in der Mischreihe Hedenbergit-Petedunnit. Beiheft zum European Journal of Mineralogy: 9: 98.",{"id":257,"year":258,"html":259,"doi":11},16119837,1998,"Rothkopf, A.L., Fehr, K.T. (1998) The chemical potential of hedenbergite in hedenbergite-peetedunnite solid solution determined by EMF measurements. Terra Abstracts: 10: Supplement 1: 53.",{"id":261,"year":262,"html":263,"doi":264},153058,2004,"Huber, A. L.; Heuer, M.; Fehr, K. T.; Bente, K.; Schmidbauer, E.; Bromiley, G. D. (2004) Characterization of synthetic hedenbergite (CaFeSi2O6)-petedunnite (CaZnSi2O6) solid solution series by X-ray powder diffraction and 57Fe Mössbauer spectroscopy. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  31 (2). 67-79 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-003-0335-1'>doi:10.1007\u002Fs00269-003-0335-1\u003C\u002Fa>","10.1007\u002Fs00269-003-0335-1",{"id":266,"year":267,"html":268,"doi":269},396946,2012,"Huber, A. L.; Heuss-Assbichler, S.; Fehr, K. T.; Bromiley, G. D. (2012) Petedunnite (CaZnSi2O6): Stability and phase relations in the system CaO-ZnO-SiO2. \u003Ci>American Mineralogist\u003C\u002Fi>,  97 (4). 739-749 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2012.3836'>doi:10.2138\u002Fam.2012.3836\u003C\u002Fa>","10.2138\u002Fam.2012.3836",{"id":271,"year":272,"html":273,"doi":11},16966655,2017,"(2017) Petedunnite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fpetedunnite.pdf' class='refpdflink'>\u003C\u002Fa>",[275,285,293],{"id":276,"source_url":277,"license_code":278,"credit_html":279,"title":280,"description":281,"author":282,"original_width":283,"original_height":284},19150,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40370829","Public domain","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40370829\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Petedunnite.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPetedunnite\" class=\"extiw\" title=\"en:Petedunnite\">Petedunnite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Franklin, Franklin Mining District, Sussex County, New Jersey, USA\u003C\u002Fdd>\n\u003Cdd>Dimensions: 8 cm x 7 cm x 3.5 cm; weight: 225 g\u003C\u002Fdd>\n\u003Cdd>Gift of John Cianciulli (June 2000). MOB coll. The petedunnite is the dark green stuff on top. It looks much like any other dark green pyroxene to me so I don't think it would be possible to ID the stuff visually. Presumably John had good provenance on this specimen. According to Dunn's Franklin\u002FSterling Hill monograph, petedunnite has one poor cleavage on {110}. In this specimen, cleavage (or parting) seems evident from a distance but appears very indistinct under a scope. (This is from the Buckwheat Dump but I don't know if it has been established that petedunnite is actually from the Buckwheat pit. Hence I posted under the more generic \"Franklin Mine\".)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Modris Baum",1024,839,{"id":286,"source_url":287,"license_code":278,"credit_html":288,"title":289,"description":290,"author":282,"original_width":291,"original_height":292},12670,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75663947","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75663947\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Petedunnite, apatite group-925453.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPetedunnite\" class=\"extiw\" title=\"en:Petedunnite\">Petedunnite\u003C\u002Fa>, Apatite group\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Franklin Mine, Franklin, Franklin mining district, Sussex County, New Jersey, USA\u003C\u002Fdd>\n\u003Cdd>Dimensions: 2.5 cm x 3.5 cm x 2 cm\u003C\u002Fdd>\n\u003Cdd>This specimen was found (in the late 1970s) on the lower part of the Trotter Dump – i.e. next to the Buckwheat Pit and just across Evans St. from the Buckwheat Dump, which is the TL for petedunnite. It doesn’t seem unreasonable that, ultimately, this specimen is from the same material. In any case, a recent EDS scan is virtually identical to that for a specimen of petedunnite that was gifted to me by John Cianciulli (then curator of the Franklin Museum). See \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FFile:Petedunnite.jpg\" title=\"File:Petedunnite.jpg\">File:Petedunnite.jpg\u003C\u002Fa>. I have posted an overlay of the scan for this specimen on the scan for the specimen that I got from John. The scans are virtually identical. See the \"analysis\" child photo. The scan result was a complete surprise. For all these years, I had kept the specimen not for the green pyroxene (of which there are only a few unbroken crystals), bur rather for the unidentified, red-brown, sort of flattened hexagonal, crystal show on the left. The scan result for this was also a complete surprise. Apparently it is an arsenian member of the apatite group (such as perhaps johnbaumite) with some REE component (such as perhaps britholite). See the scan for further comments. I have posted it as “apatite group” even though that seems like much too generic a term to use in this case.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",3066,3444,{"id":294,"source_url":295,"license_code":278,"credit_html":296,"title":297,"description":290,"author":282,"original_width":298,"original_height":299},19151,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75663949","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75663949\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Petedunnite, apatite group-925454.jpg",4325,3016,[301,308],{"id":302,"url":303,"label":304,"formula":305,"spacegroup":306,"year":307},10997,"\u002Fcif\u002F10997.cif","Heuer 2005","Ca Zn Si2 O6","C 1 2\u002Fc 1",2005,{"id":309,"url":310,"label":311,"formula":305,"spacegroup":306,"year":307},10998,"\u002Fcif\u002F10998.cif","Redhammer 2005",[313],"IMA1983-073",[315,319,324,328,331,334],{"lang":316,"names":317},"ca",[318],"petedunnita",{"lang":320,"names":321},"de",[322,323],"IMA 1983-073","Petedunnit",{"lang":325,"names":326},"eu",[327],"Petedunnita",{"lang":329,"names":330},"fr",[7],{"lang":332,"names":333},"it",[7],{"lang":335,"names":336},"nl",[337],"Petedunniet","Q1813913",{"history":11,"applications":11}]