Arsenate mineral
Naturally occurring orthoarsenates
Arsenate minerals usually refer to the naturally occurring orthoarsenates , possessing the (AsO4 )3− anion group and, more rarely, other arsenates with anions like AsO3 (OH)2− (also written HAsO4 2− ) (example: pharmacolite Ca(AsO3 OH). 2H2 O) or (very rarely) [AsO2 (OH)2 ]− (example: andyrobertsite ). Arsenite minerals are much less common.[ 1] Both the Dana[ 2] and the Strunz [ 3] mineral classifications place the arsenates in with the phosphate minerals .
Example arsenate minerals include:
Nickel–Strunz Classification -08- Phosphates
IMA -CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify the Classification of Nickel–Strunz (mindat.org , 10 ed, pending publication).
Abbreviations:
"*" - discredited (IMA/CNMNC status).
"?" - questionable/doubtful (IMA/CNMNC status).
"REE" - Rare-earth element (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
"PGE" - Platinum-group element (Ru, Rh, Pd, Os, Ir, Pt)
03.C Aluminofluorides, 06 Borates, 08 Vanadates (04.H V[5,6] Vanadates), 09 Silicates:
Neso: insular (from Greek νησος nēsos, island)
Soro: grouping (from Greek σωροῦ sōros, heap, mound (especially of corn))
Cyclo: ring
Ino: chain (from Greek ις [genitive: ινος inos ], fibre)
Phyllo: sheet (from Greek φύλλον phyllon , leaf)
Tekto: three-dimensional framework
Nickel–Strunz code scheme: NN.XY.##x
NN: Nickel–Strunz mineral class number
X: Nickel–Strunz mineral division letter
Y: Nickel–Strunz mineral family letter
##x: Nickel–Strunz mineral/group number, x add-on letter
Class: arsenates and vanadates
08.A Arsenates and vanadates without additional anions, without H2 O
08.AA With small cations (some also with larger ones): 05 Alarsite
08.AB With medium-sized cations: 25 Xanthiosite , 30 Lammerite , 35 Mcbirneyite , 35 Stranskiite , 35 Pseudolyonsite , 40 Lyonsite
08.AC With medium-sized and large cations: 05 Howardevansite ; 10 Arseniopleite , 10 Caryinite , 10 Johillerite , 10 Nickenichite , 10 Bradaczekite , 10 Yazganite , 10 Odanielite ; 25 Berzeliite , 25 Manganberzeliite , 25 Palenzonaite , 25 Schäferite ; 75 Ronneburgite , 80 Tillmannsite , 85 Filatovite
08.AD With only large cations: 10 Weilite , 10 Svenekite ; 30 Schultenite , 35 Chernovite-(Y) , 35 Dreyerite , 35 Wakefieldite -(La), 35 Wakefieldite-(Nd), 35 Wakefieldite-(Ce), 35 Wakefieldite-(Y); 40 Pucherite , 50 Gasparite-(Ce) , 50 Rooseveltite ; 55 Tetrarooseveltite , 60 Chursinite , 65 Clinobisvanite
08.B Arsenates and vanadates with additional anions, without H2 O
08.BA With small and medium-sized cations: 10 Bergslagite
08.BB With only medium-sized cations, (OH, etc.):RO4 £1:1: 15 Sarkinite ; 30 Zincolivenite , 30 Eveite , 30 Olivenite , 30 Adamite , 30 Auriacusite ; 35 Paradamite , 40 Wilhelmkleinite , 50 Namibite , 60 Urusovite , 65 Theoparacelsite , 70 Turanite , 75 Stoiberite , 80 Fingerite , 85 Averievite
08.BC With only medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1: 05 Angelellite , 15 Aerugite
08.BD With only medium-sized cations, (OH, etc.):RO4 = 2:1: 05 Cornwallite , 10 Arsenoclasite , 15 Parwelite , 20 Reppiaite , 30 Cornubite
08.BE With only medium-sized cations, (OH, etc.):RO4 > 2:1: 20 Clinoclase , 25 Gilmarite , 25 Arhbarite , 30 Allactite , 30 Flinkite , 35 Chlorophoenicite , 35 Magnesiochlorophoenicite , 40 Gerdtremmelite , 45 Arakiite , 45 Kraisslite , 45 Dixenite , 45 Hematolite , 45 Mcgovernite , 45 Turtmannite , 45 Carlfrancisite , 50 Synadelphite , 55 Holdenite , 60 Kolicite , 65 Sabelliite , 70 Jarosewichite , 75 Theisite , 80 Coparsite
08.BF With medium-sized and large cations, (OH, etc.):RO4 < 0.5:1: 20 Nabiasite
08.BG With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1: 05 Arsenbrackebuschite , 05 Brackebuschite , 05 Gamagarite , 05 Arsentsumebite , 05 Feinglosite , 05 Bushmakinite , 05 Tokyoite , 05 Calderonite
08.BH With medium-sized and large cations, (OH, etc.):RO4 = 1:1: 10 Durangite , 10 Maxwellite , 10 Tilasite ; 30 Carminite , 30 Sewardite ; 35 Austinite , 35 Adelite , 35 Duftite , 35 Arsendescloizite , 35 Conichalcite , 35 Gabrielsonite , 35 Nickelaustinite , 35 Cobaltaustinite , 35 Tangeite , 35 Gottlobite ; 40 Descloizite , 40 Cechite , 40 Pyrobelonite , 40 Mottramite ; 45 Bayldonite , 45 Vesignieite ; 50 Paganoite , 65 Leningradite
08.BK With medium-sized and large cations, (OH, etc.): 10 Medenbachite , 10 Cobaltneustadtelite , 10 Neustadtelite , 20 Heyite , 25 Jamesite
08.BL With medium-sized and large cations, (OH, etc.):RO4 = 3:1: 05 Beudantite , 05 Hidalgoite , 05 Gallobeudantite , 05 Kemmlitzite , 10 Segnitite , 10 Arsenogorceixite , 10 Arsenocrandallite , 10 Arsenogoyazite , 10 Dussertite , 10 Philipsbornite , 13 Arsenowaylandite , 13 Arsenoflorencite -(Ce), 13 Arsenoflorencite-(La), 13 Arsenoflorencite-(Nd), 13 Graulichite-(Ce)
08.BM With medium-sized and large cations, (OH, etc.):RO4 = 4:1: 05 Retzian -(Ce), 05 Retzian-(La), 05 Retzian-(Nd), 10 Kolitschite
08.BN With only large cations, (OH, etc.):RO4 = 0.33:1: 05 Fermorite , 05 Johnbaumite-M, 05 Johnbaumite , 05 Clinomimetite , 05 Hedyphane , 05 Mimetite-M, 05 Mimetite , 05 Morelandite , 05 Svabite , 05 Turneaureite , 05 Vanadinite
08.BO With only large cations, (OH, etc.):RO4 1:1: 10 Preisingerite , 10 Schumacherite , 15 Atelestite , 15 Hechtsbergite , 20 Kombatite , 20 Sahlinite , 35 Kuznetsovite , 45 Schlegelite
08.C Arsenates and vanadates without additional anions, with H2 O
08.CA With small and large/medium cations: 30 Arsenohopeite , 35 Warikahnite , 50 Keyite , 55 Pushcharovskite , 60 Prosperite
08.CB With only medium-sized cations, RO4 :H2 O = 1:1: 10 Nyholmite , 10 Miguelromeroite , 10 Sainfeldite , 10 Villyaellenite ; 15 Krautite , 15 Fluckite ; 20 Cobaltkoritnigite , 20 Koritnigite ; 25 Yvonite , 30 Geminite , 35 Schubnelite , 40 Radovanite , 45 Kazakhstanite , 50 Kolovratite , 55 Irhtemite , 60 Burgessite
08.CC With only medium-sized cations, RO4 :H2 O = 1:1.5: 10 Kaatialaite , 15 Leogangite
08.CD With only medium-sized cations, RO4 :H2 O = 1:2: 10 Mansfieldite , 10 Scorodite , 10 Yanomamite ; 15 Parascorodite , 25 Sterlinghillite , 30 Rollandite
08.CE With only medium-sized cations, RO4 :H2 O £1:2.5: 05 Geigerite , 05 Chudobaite , 15 Brassite , 20 Rosslerite , 30 Veselovskyite , 30 Ondrušite , 30 Lindackerite , 30 Pradetite ; 40 Ferrisymplesite , 40 Manganohörnesite , 40 Annabergite , 40 Erythrite , 40 Hörnesite , 40 Köttigite , 40 Parasymplesite , 45 Symplesite , 60 Kaňkite , 65 Steigerite , 70 Metaschoderite , 70 Schoderite , 85 Metaköttigite
08.CF With large and medium-sized cations, RO4 :H2 O > 1:1: 05 Grischunite
08.CG With large and medium-sized cations, RO4 :H2 O = 1:1: 05 Gaitite , 05 Parabrandtite , 05 Talmessite , 10 Roselite , 10 Rruffite , 10 Brandtite , 10 Zincroselite , 10 Wendwilsonite , 15 Ferrilotharmeyerite , 15 Cabalzarite , 15 Lotharmeyerite , 15 Cobaltlotharmeyerite , 15 Mawbyite , 15 Cobalttsumcorite , 15 Nickellotharmeyerite , 15 Schneebergite , 15 Nickelschneebergite , 15 Tsumcorite , 15 Thometzekite , 15 Manganlotharmeyerite , 15 Mounanaite , 15 Krettnichite ; 20 Zincgartrellite , 20 Lukrahnite , 20 Gartrellite , 20 Helmutwinklerite , 20 Rappoldite , 20 Phosphogartrellite ; 25 Pottsite , 35 Nickeltalmessite
08.CH With large and medium-sized cations, RO4 :H2 O < 1:1: 05 Walentaite , 15 Picropharmacolite ; 55 Smolianinovite , 55 Fahleite ; 60 Barahonaite -(Fe), 60 Barahonaite-(Al)
08.CJ With only large cations: 20 Haidingerite , 25 Vladimirite , 30 Ferrarisite , 35 Machatschkiite ; 40 Phaunouxite , 40 Rauenthalite ; 50 Pharmacolite , 55 Mcnearite , 65 Sincosite , 65 Bariosincosite , 75 Guerinite
08.D arsenates and vanadates
08.DA With small (and occasionally larger) cations: 05 Bearsite , 35 Philipsburgite , 50 Ianbruceite
08.DB With only medium-sized cations, (OH, etc.):RO4 < 1:1: 05 Pitticite , 35 Sarmientite , 40 Bukovskyite , 45 Zykaite , 75 Braithwaiteite
08.DC With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1: 07 Euchroite , 10 Legrandite , 12 Strashimirite ; 15 Arthurite , 15 Ojuelaite , 15 Cobaltarthurite , 15 Bendadaite ; 20 Coralloite , 30 Maghrebite , 32 Tinticite , 55 Mapimite , 57 Ogdensburgite
08.DD With only medium-sized cations, (OH, etc.):RO4 = 2:1: 05 Chenevixite , 05 Luetheite ; 10 Akrochordite , 10 Guanacoite
08.DE With only medium-sized cations, (OH, etc.):RO4 = 3:1: 15 Bulachite , 25 Ceruleite , 40 Juanitaite
08.DF With only medium-sized cations, (OH, etc.):RO4 > 3:1: 10 Liskeardite , 15 Rusakovite , 20 Liroconite , 30 Chalcophyllite , 35 Parnauite
08.DG With large and medium-sized cations, (OH, etc.):RO4 < 0.5:1: 05 Shubnikovite , 05 Lavendulan , 05 Lemanskiite , 05 Zdenekite
08.DH With large and medium-sized cations, (OH, etc.):RO4 < 1:1: 30 Arseniosiderite , 30 Kolfanite , 30 Sailaufite ; 45 Mahnertite ; 50 Andyrobertsite , 50 Calcioandyrobertsite ; 60 Bouazzerite
08.DJ With large and medium-sized cations, (OH, etc.):RO4 = 1:l: 15 Camgasite , 45 Attikaite
08.DK With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1: Richelsdorfite , 10 Bariopharmacosiderite , 10 Pharmacosiderite , 10 Natropharmacosiderite , 10 Hydroniumpharmacosiderite ; 12 Pharmacoalumite , 12 Natropharmacoalumite , 12 Bariopharmacoalumite
08.DL With large and medium-sized cations, (OH, etc.):RO4 = 2:1: 15 Agardite -(Ce), 15 Agardite-(La), 15 Agardite-(Nd), 15 Agardite-(Y), 15 Goudeyite , 15 Zalesiite , 15 Mixite , 15 Plumboagardite ; 20 Cheremnykhite , 20 Dugganite , 20 Wallkilldellite -(Fe), 20 Wallkilldellite-(Mn)
08.DM With large and medium-sized cations, (OH, etc.):RO4 > 2:1: 05 Esperanzaite , 10 Clinotyrolite , 10 Tyrolite , 15 Betpakdalite -CaCa, 15 Betpakdalite-NaCa, 20 Phosphovanadylite -Ba, 20 Phosphovanadylite-Ca, 25 Yukonite , 40 Santafeite
08.E Uranyl arsenates
08.EA UO2 :RO4 = 1:2: 05 Orthowalpurgite , 05 Walpurgite ; 10 Hallimondite
08.EB UO2 :RO4 = 1:1: 05 Metarauchite , 05 Heinrichite , 05 Kahlerite , 05 Novacekite , 05 Uranospinite , 05 Zeunerite ; 10 Metazeunerite , 10 Metauranospinite , 10 Metaheinrichite , 10 Metakahlerite , 10 Metakirchheimerite , 10 Metalodevite , 10 Metanovacekite ; 15 Uramarsite , 15 Trogerite , 15 Abernathyite , 15 Natrouranospinite ; 20 Chistyakovaite , 25 Arsenuranospathite
08.EC UO2 :RO4 = 3:2: 10 Arsenuranylite , 15 Hugelite , 20 Arsenovanmeersscheite , 45 Nielsbohrite
08.ED Unclassified: 10 Asselbornite
08.F Polyarsenates and [4]-polyvanadates
08.X Unclassified Strunz arsenates and vanadates
References
"Special cases" ("native elements and organic minerals") "Sulfides and oxides"
Sulfides (IDs 2.A–F)
Sulfosalts ; sulfarsenites, sulfantimonites, sulfbismuthites (IDs 2.G)
Sulfosalts; sulfarsenates, sulfantimonates (IDs 2.K)
Other sulfosalts (IDs 2.H–J and 2.L–M)
Tellurium oxysalts
Vanadium oxides (IDs 4.H)
"Evaporites and similars" "Mineral structures with tetrahedral units" (sulfate anion, phosphate anion, silicon, etc.)
Monomeric minerals (similar to nesosilicates)
Sulfates (VI) (IDs 7.A–E)
Thiosulphates (IDs 7.J)
Silicate frameworks, tectosilicates
Other tectosilicates (IDs 9.FA. and 9.FB.15, e.g. feldspars )
Other silicate frameworks
Ribbon or multiple chain inosilicates (IDs 9.D, e.g. amphiboles )
Other non monomeric minerals
Unclassified silicates (IDs 9.H)