[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2624":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":15,"ima_formula":14,"elements":16,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":28,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":11,"spacegroupset":39,"a":40,"b":41,"c":42,"alpha":39,"beta":43,"gamma":39,"aerror":44,"berror":45,"cerror":46,"alphaerror":11,"betaerror":46,"gammaerror":11,"va3":11,"z":47,"csmetamict":13,"commentcrystal":48,"twinning":49,"tranglide":11,"parting":50,"epitaxidescription":11,"morphology":11,"tlform":51,"hmin":11,"hmax":11,"hardtype":11,"vhnmin":39,"vhnmax":39,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":52,"dmeas2":53,"dcalc":54,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":55,"commentluster":11,"diapheny":56,"streak":11,"colour":57,"commentcolor":11,"colors":58,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":62,"cleavagetype":63,"fracturetype":11,"tenacity":64,"commentbreak":11,"opticaltype":65,"opticalsign":66,"opticalalpha":67,"opticalalpha2":39,"opticalalphaerror":46,"opticalbeta":68,"opticalbeta2":39,"opticalbetaerror":44,"opticalgamma":69,"opticalgamma2":11,"opticalgammaerror":46,"opticalomega":39,"opticalomega2":39,"opticalomegaerror":11,"opticalepsilon":39,"opticalepsilon2":39,"opticalepsilonerror":11,"opticaln":39,"opticaln2":39,"opticalnerror":11,"optical2vcalc":70,"optical2vcalc2":39,"optical2vcalcerror":11,"optical2vmeasured":71,"optical2vmeasured2":39,"optical2vmeasurederror":11,"rimin":72,"rimax":73,"opticaldispersion":74,"opticalpleochroism":75,"opticalpleochorismdesc":76,"opticalbirefringence":11,"opticalcomments":77,"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":78,"industrial":11,"occurrence":79,"otheroccurrence":11,"type_specimen_store":80,"description_short":81,"aboutname":82,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":83,"reviewed_at":11,"variety_of":11,"varieties":84,"group_members":85,"associates":86,"confused_with":87,"type_localities":95,"occurrence_total":45,"citations":102,"images":120,"structures":149,"synonyms":172,"language_names":175,"wikidata_qid":195,"texts":196},2624,"1:1:2624:2","7f270cdb-8915-4b04-8709-bf30fe5a9208","Medaite","Med",0,"mineral",null,473,false,"Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>V\u003Csup>5+\u003C\u002Fsup>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>(OH)","Mn may be replaced by minor Ca, and V by minor As.",[17,18,19,20,21],"Mn","Si","O","H","V",[17,18,19,20,21],[21],",Fe,H2O,","17.7.5",[27],"APPROVED",1982,"1982","9","B","J","30","57","4","1","Monoclinic",5,"0","6.712","28.948","7.578","95.4",1,8,2,4,"Space Group: P21\u002Fn:","Microscopic symmetrical twinning. The twin plane is coincident with {100}.","Distinct normal to elongation","Small brown grains embedded in brownish veinlets, a few millimeters thick, cutting a black Mn ore made up\r\nmainly of quartz and braunite.  The grains reach 1.5 mm but are usually smaller.  They are usually embedded in quartz.","3.65","3.75","3.727","Sub-Adamantine","Translucent","Brownish-red",[59,60,61],"brown","red","orange","{100} good","Distinct\u002FGood","brittle","Biaxial","+","1.77","1.78","1.80","72","71",1.77,1.8,"r > v distinct","Weak","Dark to lighter orange","X = a; Y = b; Z = c; X Λ ⊥ to cleavage = 3°.","Insoluble in water, HCl, and HNO3.","Manganese mine.","Institute of Mineralogy, Milan, Mineral Museums of Universities of Rome and Oslo, Norway.","The V analogue of arsenmedaite.","Named in 1981 by Carlo M. Gramaccioli, William L. Giffin, and Annibale Mottana in honor of Dr. Francesco Meda (20 September 1926, Turin - 13 September 1977, Turin), an amateur mineralogist whose 'enthusiastic activity as a teacher has contributed to making mineralogy popular in Italy'.","2025-08-11 12:14:22",[],[],[],[88],{"id":89,"name":90,"entrytype":9,"csystem":37,"ima_formula":91,"mindat_formula":92,"hmin":11,"hmax":11,"dmeas":11,"dcalc":93,"primary_image_id":94},51567,"Arsenmedaite","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub>As\u003Csup>5+\u003C\u002Fsup>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>(OH)","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>6\u003C\u002Fsub> As\u003Csup>5+\u003C\u002Fsup>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>(OH)","3.772 ",2038,[96],{"id":97,"txt":98,"latitude":99,"longitude":100,"country":101},2089,"Molinello Mine, Ne, Genoa, Liguria, Italy",44.3452778,9.4588889,"Italy",[103,108,111,115],{"id":104,"year":105,"html":106,"doi":107},200764,1981,"Gramaccioli, C. M.; Liborio, G.; Pilati, T. (1981) Structure of medaite, Mn6[VSi5O18(OH)]: the presence of a new kind of heteropolysilicate anion. \u003Ci>Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry\u003C\u002Fi>,  37 (11). 1972-1978 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0567740881007796'>doi:10.1107\u002Fs0567740881007796\u003C\u002Fa>","10.1107\u002Fs0567740881007796",{"id":109,"year":28,"html":110,"doi":11},15940512,"Gramaccioli, C.M., Griffin, W.L., Mottana, A. (1982) Medaite, Mn6[VSi5O18(OH)], a new mineral and the first example of vanadatopentasilicate ion. American Mineralogist: 67: 85-89.",{"id":112,"year":113,"html":114,"doi":11},16965906,2001,"(2001) Medaite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fmedaite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":116,"year":117,"html":118,"doi":119},244055,2010,"Nagashima, M., Armbruster, T. (2010) Ardennite, tiragalloite and medaite: structural control of (As\u003Csup>5+\u003C\u002Fsup>,V\u003Csup>5+\u003C\u002Fsup>,Si\u003Csup>4+\u003C\u002Fsup>)O\u003Csub>4\u003C\u002Fsub> tetrahedra in silicates. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  74 (1) 55-71 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2010.074.1.55'>doi:10.1180\u002Fminmag.2010.074.1.55\u003C\u002Fa>","10.1180\u002Fminmag.2010.074.1.55",[121,131,138,144],{"id":122,"source_url":123,"license_code":124,"credit_html":125,"title":126,"description":127,"author":128,"original_width":129,"original_height":130},15718,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149577","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149577\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Medaite-169917.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMedaite\" class=\"extiw\" title=\"en:Medaite\">Medaite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Molinello Mine, Graveglia Valley, Ne, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProvince_of_Genoa\" class=\"extiw\" title=\"en:Province of Genoa\">Genova Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLiguria\" class=\"extiw\" title=\"en:Liguria\">Liguria\u003C\u002Fa>, Italy (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2089.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.9 x 3.2 x 1.8 cm.\u003C\u002Fdd>\n\u003Cdd>A thin drusy crust on matrix is the very rare mineral medaite: a manganese, calcium, vanadium arsenic, silicate hydroxide. The medaite has sparkling luster and a rose red color. This specimen is from the type locality in Italy and is, I am told, quite rich for the species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",800,474,{"id":132,"source_url":133,"license_code":124,"credit_html":134,"title":135,"description":127,"author":128,"original_width":136,"original_height":137},15719,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149579","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149579\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Medaite-169918.jpg",400,309,{"id":139,"source_url":140,"license_code":124,"credit_html":141,"title":142,"description":143,"author":128,"original_width":129,"original_height":130},15720,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460934","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460934\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Medaite-rare08-27a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMedaite\" class=\"extiw\" title=\"en:Medaite\">Medaite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Molinello Mine, Graveglia Valley, Ne, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProvince_of_Genoa\" class=\"extiw\" title=\"en:Province of Genoa\">Genova Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLiguria\" class=\"extiw\" title=\"en:Liguria\">Liguria\u003C\u002Fa>, Italy (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2089.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 5.9 x 3.2 x 1.8 cm\n\u003Cdl>\u003Cdt>Medaite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A thin drusy crust on matrix is the very rare mineral medaite: a manganese, calcium, vanadium arsenic, silicate, hydroxide. The medaite has sparkling luster and a rose red color. This specimen is from the type locality in Italy and is , I am told, quite rich for the species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":145,"source_url":146,"license_code":124,"credit_html":147,"title":148,"description":143,"author":128,"original_width":136,"original_height":137},15721,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460935","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460935\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Medaite-rare08-27b.jpg",[150,157,162,167],{"id":151,"url":152,"label":153,"formula":154,"spacegroup":155,"year":156},8578,"\u002Fcif\u002F8578.cif","Biagioni 2019","Mn5.88 Ca.12 Si5.2 V.42 As.38 O19 H","P 1 21\u002Fn 1",2019,{"id":158,"url":159,"label":160,"formula":161,"spacegroup":155,"year":117},8579,"\u002Fcif\u002F8579.cif","Nagashima 2010 · Mn5.85 Ca.15 Si5.23 V.595 As.175 O19 H","Mn5.85 Ca.15 Si5.23 V.595 As.175 O19 H",{"id":163,"url":164,"label":165,"formula":166,"spacegroup":155,"year":117},8580,"\u002Fcif\u002F8580.cif","Nagashima 2010 · Mn6 Si5.07 V.837 As.093 O19 H","Mn6 Si5.07 V.837 As.093 O19 H",{"id":168,"url":169,"label":170,"formula":171,"spacegroup":155,"year":105},8581,"\u002Fcif\u002F8581.cif","Gramaccioli 1981","Mn5.772 Ca.192 Fe.348 (V.815 As.185) Si5 O19 H",[173,174],"IMA1979-062","Medaiet",[176,180,185,189,192],{"lang":177,"names":178},"ca",[179],"medaïta",{"lang":181,"names":182},"de",[183,184],"IMA 1979-062","Medait",{"lang":186,"names":187},"eu",[188],"Medaita",{"lang":190,"names":191},"it",[7],{"lang":193,"names":194},"pt",[173],"Q3853629",{"history":11,"applications":11}]