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Arsenate minerals usually refer to the naturally occurring orthoarsenates, possessing the (AsO₄) anion group and, more rarely, other arsenates with anions like AsO₃(OH) (also written HAsO₄) (example: pharmacolite Ca(AsO₃OH)2H₂O) or (very rarely) (example: andyrobertsite). Arsenite minerals are much less common. Both the Dana and the Strunz mineral classifications place the arsenates in with the phosphate minerals.

Example arsenate minerals include:

• Annabergite Ni₃(AsO₄)₂·8H₂O
• Austinite CaZn(AsO₄)(OH)
• Clinoclase Cu₃(AsO₄)(OH)₃
• Conichalcite CaCu(AsO₄)(OH)
• Cornubite Cu₅(AsO₄)₂(OH)₄
• Cornwallite Cu₅(AsO₄)₂(OH)₂
• Erythrite Co₃(AsO₄)₂·8H₂O
• Mimetite Pb₅(AsO₄)₃Cl
• Olivenite Cu₂(AsO₄)OH

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 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 , 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 H₂O
  • 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 H₂O
  • 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 H₂O
  • 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:H₂O = 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:H₂O = 1:1.5: 10 Kaatialaite, 15 Leogangite
  • 08.CD With only medium-sized cations, RO₄:H₂O = 1:2: 10 Mansfieldite, 10 Scorodite, 10 Yanomamite; 15 Parascorodite, 25 Sterlinghillite, 30 Rollandite
  • 08.CE With only medium-sized cations, RO₄:H₂O £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:H₂O > 1:1: 05 Grischunite
  • 08.CG With large and medium-sized cations, RO₄:H₂O = 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:H₂O < 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 -polyvanadates
  • 08.FA Polyarsenates and -polyvanadates, without OH and H₂O; dimers of corner-sharing RO₄ tetrahedra: 05 Blossite, 10 Ziesite, 15 Chervetite, 25 Petewilliamsite
  • 08.FC -Polyvanadates, with H₂O only: 05 Fianelite, 15 Pintadoite
  • 08.FD -Polyvanadates, with OH and H₂O: 05 Martyite, 05 Volborthite
  • 08.FE Ino--vanadates: 05 Ankinovichite, 05 Alvanite
• 08.X Unclassified Strunz arsenates and vanadates

References

1. Webmineral
2. Webmineral Dana system
3. Webmineral Strunz system

• Stuart J. Mills; Frédéric Hatert; Ernest H. Nickel & Giovanni Ferraris (2009). "The standardisation of mineral group hierarchies: application to recent nomenclature proposals" (PDF). Eur. J. Mineral. 21: 1073–1080. doi:10.1127/0935-1221/2009/0021-1994. Archived from the original (PDF) on 2011-02-17. Retrieved 2011-01-30.
• Ernest H. Nickel & Monte C. Nichols (March 2009). "IMA-CNMNC List of Mineral Names" (PDF). IMA-CNMNC. Archived from the original (PDF) on 2009-03-20. Retrieved 2011-01-30.
• Ferraiolo, Jim. "Nickel–Strunz (Version 10) Classification System". webmineral.com.

v t e IMA–CNMNC / Nickel–Strunz IDs Mineral categories (classes, subclasses, divisions)
"Special cases" ("native elements and organic minerals")	"Native elements" (IDs 1) Organic minerals (IDs 10)
"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) Oxides (IDs 4.A–E, e.g. pyrochlore supergroup and corundum group) Hydroxides (IDs 4.F–G) Arsenates(IV), sulfates(IV) and iodates (IDs 4.J–K) Tellurium oxysalts Vanadium oxides (IDs 4.H)
"Evaporites and similars"	Carbonates (IDs 5.A–E) Nitrates (IDs 5.N) Borates (IDs 6) Halides (IDs 3)
"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) Chromates(VI) (IDs 7.F) Molybdates, wolframates, niobates(VI) (IDs 7.G–H) Phosphates(V) (IDs 8) Arsenates, vanadates(V) (IDs 8) Monomeric, isolated silicates (IDs 9.A) Germanates (IDs 9.J) Silicate frameworks, tectosilicates Zeolite frameworks, zeolite family (IDs 9.G) Other feldspathoids: nephelines (IDs 9.FA.05) Cancrinite-sodalite groups (IDs 9.FB.) Other tectosilicates (IDs 9.FA. and 9.FB.15, e.g. feldspars) Other silicate frameworks Cyclosilicates (IDs 9.C) Phyllosilicates (IDs 9.E, e.g. clays) Silica family (IDs 4.DA.) Inosilicates Single chain inosilicates (IDs 9.D, e.g. pyroxenes) Ribbon or multiple chain inosilicates (IDs 9.D, e.g. amphiboles) Other non monomeric minerals Unclassified silicates (IDs 9.H) Sorosilicates (IDs 9.B, e.g. epidote and seidozerite supergroups) Polymeric, isolated silicates (IDs 9.A, e.g. olivine and gadolinite supergroups) Other inorganic polymers (e.g. polyoxometalates; "polyphosphates", IDs 8.F)
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