Arsenate minerals

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 HAsO₄²⁻) (example: pharmacolite Ca(AsO₃OH)^.2H₂O) 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:

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 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^[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 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 Schaferite; 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 [4]-polyvanadates
- 08.FA Polyarsenates and [4]-polyvanadates, without OH and H₂O; dimers of corner-sharing RO₄ tetrahedra: 05 Blossite, 10 Ziesite, 15 Chervetite, 25 Petewilliamsite
- 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 arsenates and vanadates

References

Stuart J. Mills; Frédéric Hatert; Ernest H. Nickel; Giovanni Ferraris (2009). "The standardisation of mineral group hierarchies: application to recent nomenclature proposals". Eur. J. Mineral. 21: 1073–1080. doi:10.1127/0935-1221/2009/0021-1994. http://pubsites.uws.edu.au/ima-cnmnc/Mills%20et%20al%202009%20Groups%20EJM%20October.pdf.
"IMA-CNMNC List of Mineral Names". IMA-CNMNC. March 2009. http://pubsites.uws.edu.au/ima-cnmnc/IMA2009-01%20UPDATE%20160309.pdf.
Ferraiolo, Jim. "Nickel–Strunz (Version 10) Classification System". webmineral.com. http://webmineral.com/strunz/strunz.php.

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v t e white;">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) "Arsenites", "sulfites" 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 (IDs 7.A–E) Thiosulphates (IDs 7.J) Chromates (IDs 7.F) Molybdates, wolframates, niobates (IDs 7.G–H) Phosphates (IDs 8) Arsenates, vanadates (IDs 8) Monomeric, isolated silicates (IDs 9.A) Germanates (IDs 9.J) Silicate frameworks, tectosilicates Zeolite frameworks, zeolite family (IDs 9.G) Other zeolitic frameworks: 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)

Arsenate minerals

Topic: Chemistry

Nickel–Strunz Classification -08- Phosphates

Class: arsenates and vanadates

References