[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1323":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":16,"elements":17,"sigelements":23,"key_elements":11,"impurities":11,"cim":24,"ima_status":25,"ima_notes":11,"ima_history":11,"approval_year":11,"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":48,"alphaerror":11,"betaerror":49,"gammaerror":11,"va3":11,"z":46,"csmetamict":14,"commentcrystal":50,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":51,"tlform":11,"hmin":52,"hmax":53,"hardtype":11,"vhnmin":44,"vhnmax":44,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":54,"dmeas2":55,"dcalc":56,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":57,"lustretype":58,"commentluster":59,"diapheny":60,"streak":61,"colour":62,"commentcolor":11,"colors":63,"streak_colors":70,"luminescence":11,"uv":71,"cleavage":72,"cleavagetype":73,"fracturetype":74,"tenacity":75,"commentbreak":11,"opticaltype":76,"opticalsign":77,"opticalalpha":78,"opticalalpha2":79,"opticalalphaerror":11,"opticalbeta":80,"opticalbeta2":81,"opticalbetaerror":11,"opticalgamma":82,"opticalgamma2":83,"opticalgammaerror":11,"opticalomega":44,"opticalomega2":44,"opticalomegaerror":11,"opticalepsilon":44,"opticalepsilon2":44,"opticalepsilonerror":11,"opticaln":44,"opticaln2":44,"opticalnerror":11,"optical2vcalc":84,"optical2vcalc2":85,"optical2vcalcerror":11,"optical2vmeasured":44,"optical2vmeasured2":86,"optical2vmeasurederror":11,"rimin":87,"rimax":88,"opticaldispersion":89,"opticalpleochroism":90,"opticalpleochorismdesc":91,"opticalbirefringence":92,"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":93,"industrial":11,"occurrence":94,"otheroccurrence":95,"type_specimen_store":96,"description_short":97,"aboutname":98,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":99,"reviewed_at":11,"variety_of":11,"varieties":100,"group_members":101,"associates":137,"confused_with":207,"type_localities":211,"occurrence_total":222,"citations":223,"images":300,"structures":374,"synonyms":382,"language_names":392,"wikidata_qid":424,"texts":425},1323,"1:1:1323:5","fbc21625-7573-48ad-82f9-4ea17e64c288","Dufrénite","Dfr",0,"mineral",null,39303,4101,false,"Ca\u003Csub>0.5\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>0.5\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22],"Ca","Fe","O","P","H",[18,19,20,21,22],"19.13.4",[26,27],"APPROVED","GRANDFATHERED","1833","8","D","K","15","42","9","1","2","Monoclinic",5,10,"C2\u002Fc ","25.84","5.126","13.78","0","111.20",2,3,1,6,"SG C2\u002Fc","Crystals rare, indistinct, in subparallel or sheaf-like aggregates. Botryoidal masses or crusts with a radial-fibrous structure, common. The crusts are formed of drusy crystals with rounded or exfoliated terminations at times.",3.5,4.5,"3.1","3.34","3.41","Vitreous, Silky","Sub-Vitreous,Resinous,Silky","Silky in cross-section of botryoids","Translucent,Opaque","Green","Dark green, olive-green, olive-brown, black; olive-brown to reddish brown with oxidation; bluish green to reddish brown or yellow in transmitted light.",[64,65,66,67,68,69],"green","brown","black","blue","yellow","red",[64],"Not Fluorescent in UV","One perfect, a second cleavage good and both parallel to the fibre direction, with traces of a poor third cleavage at right angles to the other two.","Perfect","Fibrous","brittle","Biaxial","+\u002F-","1.82","1.842","1.83","1.85","1.875","1.925","38","52","90",1.82,1.925,"r\u003Cv relatively strong; also r >v relatively strong","Visible","X = Deep blue, light brown, light yellow-brown or deep bluish green\r\nY = Buff, brown, light brown, light yellow-brown\r\nZ = Deep red-brown, dark brown, red-brown, deep olive-brown\r\n(from localities: Rock Run, AL; Siegen, Westphalia; Wheal Phoenix; and Hirs","0.055","Soluble in dilute acids.","Iron ore deposit","Gossan of veins and in iron ore deposits; in iron-rich gossans; rarely in late-stage phosphate mineralization in granite pegmatites.","Muséum Nationale d’Histoire Naturelle, Paris, France, number42.47.","A secondary mineral occurring with limonite in gossan of veins and in iron ore deposits.\r\n\r\nSee also natrodufrénite which is visually indistinguishable from dufrénite and appears to be much more common than presently thought (Henry Barwood, unpubl. res...","Named in 1833 by Alexandre Brongniart in honor of Ours Pierre Armand Petit Dufrenoy [September 5, 1792 - March 20, 1857), Professor of Mineralogy in the École des Mines, Paris, France. (Because of many look-alike species in the environments where dufrénite occurred, species such as rockbridgeite, etc. were called by that name.)\r\nThe mineral dufrénoysite is also named in his honor.","2026-03-21 18:54:03",[],[102,108,114,123,130],{"id":103,"name":104,"entrytype":9,"csystem":37,"ima_formula":105,"mindat_formula":106,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":107},54655,"Bimbowrieite","NaMgFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub> · 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2H\u003Csub>2\u003C\u002Fsub>O","NaFe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",4150,{"id":115,"name":116,"entrytype":9,"csystem":37,"ima_formula":117,"mindat_formula":118,"hmin":119,"hmax":38,"dmeas":120,"dcalc":121,"primary_image_id":122},39302,"Gayite","NaMnFe\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","NaMn\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",4,"3.15","3.245",9699,{"id":124,"name":125,"entrytype":9,"csystem":37,"ima_formula":126,"mindat_formula":127,"hmin":38,"hmax":38,"dmeas":44,"dcalc":128,"primary_image_id":129},27412,"Matioliite","NaMgAl\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","NaMgAl\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","2.948",15588,{"id":131,"name":132,"entrytype":9,"csystem":37,"ima_formula":133,"mindat_formula":133,"hmin":52,"hmax":53,"dmeas":134,"dcalc":135,"primary_image_id":136},2854,"Natrodufrénite","NaFe\u003Csup>3+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>O(OH)\u003Csub>5\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>2\u003C\u002Fsub>","3.20","3.23",17412,[138,146,155,164,172,182,191,200],{"id":139,"name":140,"entrytype":9,"csystem":37,"ima_formula":141,"mindat_formula":142,"hmin":47,"hmax":119,"dmeas":143,"dcalc":144,"primary_image_id":145},628,"Beraunite","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>O(OH)\u003Csub>4\u003C\u002Fsub> · 6H\u003Csub>2\u003C\u002Fsub>O","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>O(OH)\u003Csub>4\u003C\u002Fsub>·6H\u003Csub>2\u003C\u002Fsub>O","2.8","2.894",3076,{"id":147,"name":148,"entrytype":9,"csystem":149,"ima_formula":150,"mindat_formula":151,"hmin":47,"hmax":119,"dmeas":152,"dcalc":153,"primary_image_id":154},840,"Cacoxenite","Hexagonal","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>24\u003C\u002Fsub>AlO\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>17\u003C\u002Fsub>(OH)\u003Csub>12\u003C\u002Fsub> · 75H\u003Csub>2\u003C\u002Fsub>O","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>24\u003C\u002Fsub>AlO\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>17\u003C\u002Fsub>(OH)\u003Csub>12\u003C\u002Fsub>·75H\u003Csub>2\u003C\u002Fsub>O","2.2","2.217",29339,{"id":156,"name":157,"entrytype":9,"csystem":158,"ima_formula":159,"mindat_formula":160,"hmin":53,"hmax":53,"dmeas":161,"dcalc":162,"primary_image_id":163},945,"Chalcosiderite","Triclinic","CuFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub> · 4H\u003Csub>2\u003C\u002Fsub>O","CuFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>·4H\u003Csub>2\u003C\u002Fsub>O","3.22","3.28",5242,{"id":165,"name":166,"entrytype":9,"csystem":37,"ima_formula":167,"mindat_formula":168,"hmin":47,"hmax":47,"dmeas":169,"dcalc":170,"primary_image_id":171},1047,"Churchite-(Y)","Y(PO\u003Csub>4\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","Y(PO\u003Csub>4\u003C\u002Fsub>)·2H\u003Csub>2\u003C\u002Fsub>O","3.14","3.2",5731,{"id":173,"name":174,"entrytype":9,"csystem":175,"ima_formula":176,"mindat_formula":177,"hmin":38,"hmax":178,"dmeas":179,"dcalc":180,"primary_image_id":181},1719,"Goethite","Orthorhombic","FeO(OH)","Fe\u003Csup>3+\u003C\u002Fsup>O(OH)",5.5,"4.27","4.18",29787,{"id":183,"name":184,"entrytype":9,"csystem":37,"ima_formula":185,"mindat_formula":186,"hmin":187,"hmax":187,"dmeas":188,"dcalc":189,"primary_image_id":190},2598,"Matulaite","Fe\u003Csup>3+\u003C\u002Fsup>Al\u003Csub>7\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>3\u003C\u002Fsub>OH)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>8\u003C\u002Fsub> · 8H\u003Csub>2\u003C\u002Fsub>O","(Fe\u003Csup>3+\u003C\u002Fsup>,Al)Al\u003Csub>7\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>3\u003C\u002Fsub>OH)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>8\u003C\u002Fsub>·8H\u003Csub>2\u003C\u002Fsub>O",1.5,"2.27","2.294",15624,{"id":192,"name":193,"entrytype":9,"csystem":194,"ima_formula":195,"mindat_formula":196,"hmin":52,"hmax":53,"dmeas":197,"dcalc":198,"primary_image_id":199},3647,"Siderite","Trigonal","Fe(CO\u003Csub>3\u003C\u002Fsub>)","FeCO\u003Csub>3\u003C\u002Fsub>","3.96","3.932",22253,{"id":201,"name":202,"entrytype":9,"csystem":175,"ima_formula":203,"mindat_formula":204,"hmin":52,"hmax":119,"dmeas":205,"dcalc":205,"primary_image_id":206},3801,"Strengite","Fe\u003Csup>3+\u003C\u002Fsup>(PO\u003Csub>4\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","FePO\u003Csub>4\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","2.84",23023,[208,209,210],{"id":109,"name":110,"entrytype":9,"csystem":37,"ima_formula":111,"mindat_formula":112,"hmin":38,"hmax":38,"dmeas":44,"dcalc":44,"primary_image_id":113},{"id":124,"name":125,"entrytype":9,"csystem":37,"ima_formula":126,"mindat_formula":127,"hmin":38,"hmax":38,"dmeas":44,"dcalc":128,"primary_image_id":129},{"id":131,"name":132,"entrytype":9,"csystem":37,"ima_formula":133,"mindat_formula":133,"hmin":52,"hmax":53,"dmeas":134,"dcalc":135,"primary_image_id":136},[212,218],{"id":213,"txt":214,"latitude":215,"longitude":216,"country":217},1705,"Angelard, Compreignac, Bellac, Haute-Vienne, Nouvelle-Aquitaine, France",45.9746161,1.3108708,"France",{"id":219,"txt":220,"latitude":11,"longitude":11,"country":221},185967,"Hoff auf mich Mine, Ullersreuth, Hirschberg, Saale-Orla District, Thuringia, Germany","Germany",130,[224,228,232,236,240,244,248,253,258,262,266,270,274,278,283,287,291,295],{"id":225,"year":226,"html":227,"doi":11},16107974,1803,"Jordan (1803) Min. Reisebem.: 243 (as Strahlstein).",{"id":229,"year":230,"html":231,"doi":11},16107975,1814,"Ullmann, J.C. (1814) Systematisch-Tabellarische Uebersicht der min.-einfachen Fossilien. Cassel and Marburg: 152. (as Grüneisenstein, strahlicher, ochrichter)",{"id":233,"year":234,"html":235,"doi":11},12960854,1822,"Haüy, René Just (1822) \u003Ci>Traité de Minéralogie\u003C\u002Fi> (2nd ed.) Vol. 4. Bachelier, Paris. \u003Ca target='_blank' href='https:\u002F\u002Farchive.org\u002Fdownload\u002Ftraitdeminralog06goog\u002Ftraitdeminralog06goog.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":237,"year":238,"html":239,"doi":11},16107977,1833,"Brongniart, A. (1833) Dufrénite. in Tableau de la distribution méthodique des espèces minérales suivie dans le cours de minèralogie fait au Musèum Royal d'Histoire Naturelle en 1833, A la Librairie Encyclopèdique de Roret (Paris), 48pp., 8vo: 20.",{"id":241,"year":242,"html":243,"doi":11},16107978,1841,"Breithaupt, A. (1841) Vollständige Handbuch der Mineralogie: 2: 152. (as Kraurit)",{"id":245,"year":246,"html":247,"doi":11},16183755,1881,"Streng, A. (1881) Ueber die Phosphate von Waldgirmes. Neues Jahrbuch für Mineralogie, Geologie, und Palaeontologie: Teil 1: 101-119 (in German). https:\u002F\u002Fwww.zobodat.at\u002Fpdf\u002FNeues-Jb-Min-Geol-Palae_1881_0101-0119.pdf",{"id":249,"year":250,"html":251,"doi":252},5328,1886,"Kinch, E., Butler, F. H. (1886) On a New Variety of Mineral from Cornwall. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  7 (33) 65-70 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1886.007.33.06'>doi:10.1180\u002Fminmag.1886.007.33.06\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_7\u002F7-33-65.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1886.007.33.06",{"id":254,"year":255,"html":256,"doi":257},5379,1888,"Kinch, Edward (1888) On Dufrenite from Cornwall. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  8 (37) 112-115 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1888.008.37.04'>doi:10.1180\u002Fminmag.1888.008.37.04\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_8\u002F8-37-112.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1888.008.37.04",{"id":259,"year":260,"html":261,"doi":11},16107982,1889,"Hintze, C. (1889) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4B]: 1122.",{"id":263,"year":264,"html":265,"doi":11},16107983,1910,"Clarke (1910) USGS Bull. 419: 303.",{"id":267,"year":268,"html":269,"doi":11},16107984,1911,"Simpson, E.S. (1911) Journal of the Natural History Society of Western Australia: 4: 3.",{"id":271,"year":272,"html":273,"doi":11},521898,1949,"Frondel, Clifford (1949) The dufrenite problem. \u003Ci>American Mineralogist\u003C\u002Fi>,  34 (7-8) 513-540 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM34\u002FAM34_513.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":275,"year":276,"html":277,"doi":11},1118652,1951,"Palache, Charles; Berman, Harry; Frondel, Clifford (1951) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.",{"id":279,"year":280,"html":281,"doi":282},1636,1990,"Van Der Westhuizen, W. A., de Bruiyn, H., Beukes, G. J., Strydom, D. (1990) Dufrenite in iron-formation on the Kangnas farm, Aggeneys district, Bushmanland, South Africa. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  54 (376) 419-424 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1990.054.376.07'>doi:10.1180\u002Fminmag.1990.054.376.07\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_54\u002F54-376-419.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1990.054.376.07",{"id":284,"year":285,"html":286,"doi":11},16964037,2005,"(2005) Dufrénite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fdufrenite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":288,"year":289,"html":290,"doi":11},16693698,2006,"Sejkora, J., Škoda, R., Ondruš, P., Beran, P., Susser, C. (2006) Mineralogy of phosphate accumulations in the Huber stock, Krásno ore district, Slavkovský les area, Czech Republic. \u003Ci>Journal of the Czech Geological Society\u003C\u002Fi>,  51 (1-2) 103-147 \u003Ca target='_blank' href='http:\u002F\u002Fwww.jgeosci.org\u002Fcontent\u002FJCGS2006_1-2__sejkora3.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":292,"year":293,"html":294,"doi":11},12909745,2008,"Burke, Ernst A. J. (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks. \u003Ci>The Mineralogical Record\u003C\u002Fi>,  39 (2) 131-135 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fuploads\u002FMR39_131.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":296,"year":297,"html":298,"doi":299},397531,2014,"Dyar, M. D., Jawin, E. R., Breves, E., Marchand, G., Nelms, M., Lane, M. D., Mertzman, S. A., Bish, D. L., Bishop, J. L. (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data. \u003Ci>American Mineralogist\u003C\u002Fi>,  99 (5) 914-942 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2014.4701'>doi:10.2138\u002Fam.2014.4701\u003C\u002Fa>","10.2138\u002Fam.2014.4701",[301,311,318,325,334,342,352,360,368],{"id":302,"source_url":303,"license_code":304,"credit_html":305,"title":306,"description":307,"author":308,"original_width":309,"original_height":310},7433,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164372","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164372\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-235234.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDufr%C3%A9nite\" class=\"extiw\" title=\"en:Dufrénite\">Dufrénite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wheal Phoenix (Phoenix United Mine; West Phoenix Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLinkinhorne\" class=\"extiw\" title=\"en:Linkinhorne\">Linkinhorne\u003C\u002Fa>, Caradon & Phoenix Area (South-Eastern Bodmin Moor), Liskeard District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornwall\" class=\"extiw\" title=\"en:Cornwall\">Cornwall\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEngland\" class=\"extiw\" title=\"en:England\">England\u003C\u002Fa>, UK (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1050.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.4 x 4.0 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>Dufrenite is a rare, secondary mineral of calcium, iron phosphate commonly found in iron ore deposits and in vein gossans. A well-placed vug in hematite matrix is lined with lustrous, blue-green dufrenite botryoids. The two broken botryoids reveal the radial growth pattern of the dufrenite. This fine, old-time piece comes from a classic Cornwall locality - the Wheal Phoenix. The piece is accompanied by an expertly handwritten, faded label from an older collection. The collection this came out of was a museum stash dating to prior to World War I. Easily over 100 years old.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",750,418,{"id":312,"source_url":313,"license_code":314,"credit_html":315,"title":7,"description":11,"author":11,"original_width":316,"original_height":317},29632,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115154","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115154\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,666,{"id":319,"source_url":320,"license_code":304,"credit_html":321,"title":322,"description":307,"author":308,"original_width":323,"original_height":324},7434,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164373","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164373\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-235235.jpg",400,396,{"id":326,"source_url":327,"license_code":304,"credit_html":328,"title":329,"description":330,"author":331,"original_width":332,"original_height":333},7437,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866921","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866921\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-132859.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDufr%C3%A9nite\" class=\"extiw\" title=\"en:Dufrénite\">Dufrénite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Iron Monarch open cut, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIron_Knob,_South_Australia\" class=\"extiw\" title=\"en:Iron Knob, South Australia\">Iron Knob\u003C\u002Fa>, Middleback Range, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEyre_Peninsula\" class=\"extiw\" title=\"en:Eyre Peninsula\">Eyre peninsula\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Australia\" class=\"extiw\" title=\"en:South Australia\">South Australia\u003C\u002Fa>, Australia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Field of view 4 mm. Specimen and photo Leon Hupperichs. My thanks to Volker Hoppe for this very fine exchange specimen.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",774,563,{"id":335,"source_url":336,"license_code":304,"credit_html":337,"title":338,"description":339,"author":331,"original_width":340,"original_height":341},7438,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866923","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866923\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-132860.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDufr%C3%A9nite\" class=\"extiw\" title=\"en:Dufrénite\">Dufrénite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Iron Monarch open cut, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIron_Knob,_South_Australia\" class=\"extiw\" title=\"en:Iron Knob, South Australia\">Iron Knob\u003C\u002Fa>, Middleback Range, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEyre_Peninsula\" class=\"extiw\" title=\"en:Eyre Peninsula\">Eyre peninsula\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Australia\" class=\"extiw\" title=\"en:South Australia\">South Australia\u003C\u002Fa>, Australia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Field of view 7 mm. Specimen and photo Leon Hupperichs. My thanks to Volker Hoppe for this very fine exchange specimen.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",696,544,{"id":343,"source_url":344,"license_code":345,"credit_html":346,"title":347,"description":348,"author":349,"original_width":350,"original_height":351},7439,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=188113980","CC0 1.0","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=188113980\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenit 31610 1.jpg","Dufrénite from Freehold, New Jersey, USA. 26.3 g - mm scale","Slashme",4744,3998,{"id":353,"source_url":354,"license_code":345,"credit_html":355,"title":356,"description":357,"author":349,"original_width":358,"original_height":359},7440,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=188113981","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=188113981\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenit 31610 2.jpg","Dufrénite from Freehold, New Jersey, USA. 26.3 g",5688,4049,{"id":361,"source_url":362,"license_code":304,"credit_html":363,"title":364,"description":365,"author":308,"original_width":366,"original_height":367},7435,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167175","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167175\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-Beraunite-250205.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDufr%C3%A9nite\" class=\"extiw\" title=\"en:Dufrénite\">Dufrénite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBeraunite\" class=\"extiw\" title=\"en:Beraunite\">Beraunite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Augusta Ridge Iron Quarry, Cherokee County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAlabama\" class=\"extiw\" title=\"en:Alabama\">Alabama\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-209410.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.5 x 5.2 x 1.6 cm.\u003C\u002Fdd>\n\u003Cdd>Dufrenite and beraunite are uncommon hydrated iron phosphates found as secondary minerals in bog iron deposits. A sculptural vug on both sides of the hematite ore is lined with a crust of light and dark olive green dufrenite. The small, patchy, rust-brown crusts on the lower part of the front are beraunite. This piece is from a very uncommon Alabama iron deposit. Old material. Ex. Robert Fender Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,444,{"id":369,"source_url":370,"license_code":304,"credit_html":371,"title":372,"description":365,"author":308,"original_width":323,"original_height":373},7436,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167177","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10167177\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dufrenite-Beraunite-250206.jpg",300,[375],{"id":376,"url":377,"label":378,"formula":379,"spacegroup":380,"year":381},3956,"\u002Fcif\u002F3956.cif","Moore 1970","Fe6 P4 Ca O24 H8","C 1 2\u002Fc 1",1970,[383,384,385,386,387,388,389,390,391],"Alluadite (of Bernhardi)","Dufréniet","Fer oxidé, terreaux, jaune verdâtre","Grüneisenerde","Grüneisenerz","Grüneisenstein, strahlicher, ochricher","Kraurit","Kraurite","Strahlstein (of Jordan)",[393,397,401,405,409,413,417,420],{"lang":394,"names":395},"ca",[396],"dufrenita",{"lang":398,"names":399},"de",[400],"Dufrénit",{"lang":402,"names":403},"es",[404],"dufrénita",{"lang":406,"names":407},"et",[408],"düfreniit",{"lang":410,"names":411},"eu",[412],"Dufrénita",{"lang":414,"names":415},"fr",[416],"dufrénite",{"lang":418,"names":419},"it",[416],{"lang":421,"names":422},"pl",[423],"Dufrenit","Q916890",{"history":11,"applications":11}]