Arsenate mineral

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(AsO₃OH)^.2H₂O) or (very rarely) [AsO₂(OH)₂]^- (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 Cu²⁺₅(AsO₄)₂(OH)₂
• Erythrite Co₃(AsO₄)₂·8H₂O
• Mimetite Pb₆(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 (10 ed, pending publication).

• Abbreviations:
  • "*" - Mineral not IMA Approved.
  • "?" - IMA Discredited Mineral Name.
  • "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

• 08.A Arsenates 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 Stranskiite
  • 08.AC With medium-sized and large cations: 10 Arseniopleite, 10 Caryinite, 10 Yazganite, 10 Johillerite, 10 Odanielite, 10 Nickenichite, 10 Bradaczekite; 25 Berzeliite, 25 Manganberzeliite, 85 Filatovite
  • 08.AD With only large cations: 10 Svenekite, 10 Weilite; 30 Schultenite, 35 Chernovite-(Y); 50 Gasparite-(Ce), 50 Rooseveltite; 55 Tetrarooseveltite, 60 Chursinite
• 08.B Arsenates with Additional Anions, without H₂O
• 08.C Arsenates without Additional Anions, with H2O
• 08.D Arsenates
• 08.E Uranyl Arsenates
• 08.F Polyarsenates
  • 08.FA Polyarsenates, without OH and H₂O; dimers of corner-sharing RO₄ tetrahedra: 25 Petewilliamsite
• 08.X Unclassified Strunz Arsenates
  • 08.XX Unknown: 00 Kamarizaite, 00 Chernovite-(Ce)*, 00 Arsenobismite?, 00 Slavkovite, 00 Lapeyreite, 00 IMA2000-020, 00 IMA2008-063, 00 IMA2009-002, IMA2009-016

Class: vanadates

• 04.H V^[5,6] Vanadates
  • 04.HB Uranyl Sorovanadates: 05 Carnotite, 05 Margaritasite; 10 Sengierite; 15 Fritzscheite, 15 Curienite, 15 Francevillite; 20 Metavanuralite, 20 Vanuralite; 25 Metatyuyamunite, 25 Tyuyamunite; 30 Strelkinite, 35 Uvanite, 40 Rauvite
  • 04.HC [6]-Sorovanadates: 05 Magnesiopascoite, 05 Lasalite, 05 Pascoite; 10 Hummerite, 15 Sherwoodite
  • 04.HD Inovanadates: 05 Rossite, 10 Metarossite, 15 Munirite, 20 Metamunirite, 25 Dickthomssenite, 30 Ansermetite
  • 04.HE Phyllovanadates: 05 Melanovanadite, 10 Shcherbinaite; 15 Hewettite, 15 Metahewettite; 20 Bokite, 20 Bariandite, 20 Corvusite, 20 Fernandinite, 20 Straczekite; 25 Haggite, 30 Doloresite, 35 Duttonite, 40 Cavoite
  • 04.HF Tektovanadates: 05 Bannermanite
  • 04.HG Unclassified V oxides: 05 Fervanite, 10 Huemulite, 15 Vanalite, 20 Simplotite, 25 Vanoxite, 30 Navajoite, 35 Delrioite, 40 Metadelrioite, 45 Barnesite, 50 Hendersonite, 55 Grantsite, 60 Lenoblite, 65 Satpaevite
• 08.A Vanadates without additional anions, without H₂O
  • 08.AB With medium-sized cations: 35 Mcbirneyite, 40 Lyonsite
  • 08.AC With medium-sized and large cations: 05 Howardevansite; 25 Palenzonaite, 25 Schaferite; 75 Ronneburgite, 80 Tillmannsite
  • 08.AD With only large cations: 35 Wakefieldite-(La), 35 Wakefieldite-(Nd), 35 Wakefieldite-(Ce), 35 Wakefieldite-(Y), 35 Dreyerite; 40 Pucherite, 65 Clinobisvanite
• 08.B Vanadates with Additional Anions, without H₂O
  • 08.BB With only medium-sized cations, (OH, etc.):RO₄ £ 1:1: 50 Namibite, 70 Turanite, 75 Stoiberite, 80 Fingerite, 85 Averievite
  • 08.BD With only medium-sized cations, (OH, etc.):RO₄ = 2:1: 20 Reppiaite
  • 08.BE With only medium-sized cations, (OH, etc.):RO₄ > 2:1: 45 Turtmannite, 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 Brackebuschite, 05 Gamagarite, 05 Tokyoite, 05 Bushmakinite, 05 Calderonite
  • 08.BH With medium-sized and large cations, (OH,etc.):RO₄ = 1:1: 35 Tangeite, 35 Gottlobite, 40 Descloizite, 40 Cechite, 40 Pyrobelonite, 40 Mottramite, 40 Duhamelite?, 45 Vesignieite, 65 Leningradite
  • 08.BK With medium-sized and large cations, (OH, etc.): 20 Heyite
  • 08.BL With medium-sized and large cations, (OH, etc.):RO₄ = 3:1: 20 Cheremnykhite
  • 08.BN With only large cations, (OH, etc.):RO₄ = 0.33:1: 05 Vanadinite
  • 08.BO With only large cations, (OH, etc.):RO₄ 1:1: 10 Schumacherite, 15 Hechtsbergite, 20 Kombatite
• 08.C Vanadates without Additional Anions, with H₂O
  • 08.CB With only medium-sized cations, RO₄:H₂O = 1:1: 35 Schubnelite, 45 Kazakhstanite, 50 Kolovratite
  • 08.CE With only medium-sized cations, RO₄:H₂O £ 1:2.5: 65 Steigerite; 70 Metaschoderite, 70 Schoderite
  • 08.CG With large and medium-sized cations, RO₄:H₂O = 1:1: 15 Mounanaite, 15 Krettnichite, 25 Pottsite
• 08.D Vanadates
  • 08.DC With only medium-sized cations, (OH, etc.):RO₄ = 1:1 and < 2:1: 32 Tinticite; 60 Cloncurryite, 60 Nevadaite
  • 08.DF With only medium-sized cations, (OH,etc.):RO₄ > 3:1: 15 Rusakovite
  • 08.DM With large and medium-sized cations, (OH, etc.):RO₄ > 2:1: 20 Phosphovanadylite, 40 Santafeite
• 08.F [4]-Polyvanadates
  • 08.FA [4]-Polyvanadates, without OH and H₂O; dimers of corner-sharing RO₄ tetrahedra: 05 Blossite, 10 Ziesite, 15 Chervetite
  • 08.FC [4]-Polyvanadates, with H₂O only: 05 Fianelite, 15 Pintadoite
  • 08.FD [4]-Polyvanadates, with OH and H₂O: 05 Martyite, 05 Volborthite
  • 08.FE Ino-[4]-vanadates: 05 Ankinovichite, 05 Alvanite
• 08.X Unclassified Strunz Vanadates
  • 08.XX Unknown: 00 Vanuranylite?

References

• Stuart J. Mills, Frédéric Hatert, Ernest H. Nickel, and 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.{{cite journal}}: CS1 maint: multiple names: authors list (link)
• Ernest H. Nickel and Monte C. Nichols (2009). "IMA-CNMNC List of Mineral Names" (PDF). IMA-CNMNC. {{cite web}}: Unknown parameter |month= ignored (help)
• Ferraiolo, Jim. "Nickel-Strunz (Version 10) Classification System". webmineral.com.