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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE
based on E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001),
revised by Thomas Witzke (2022)
4. OXIDES, HYDROXIDES
(Oxides, Hydroxides, V[5,6]-Vanadates, Arsenites, Antimonites, Bismutites, Sulfites, Selenites, Tellurites, Iodates)
4.H: V[5;6] Vanadates and W[6] Tungsten bronze
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4.HA. V[5;6] Nesovanadates |
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no examples known |
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4.HB. Uranyl Sorovanadates |
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4.HB.005. Carnotite group |
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Carnotite | |
K2(UO2)2(V2O8)·3H2O | |
mon., P21/a | |
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G |
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Vandermeerscheite | |
K2(UO2)2(V2O8)·2H2O | |
mon., P21/n | |
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IMA 2017-104 |
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Margaitasite | |
Cs2(UO2)2(V2O8)·H2O | |
mon., P21/a | |
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IMA 1980-093 |
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Dimers of edge-sharing tetragonal VO5-pyramides, forming V2O8 groups,
with pentagonal UO7 polyhedra in layers.
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4.HB.010. Sengierite |
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Sengierite | |
Cu2(UO2)2(V2O8)(OH)2·6H2O | |
mon., P21/a | |
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G |
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4.HB.015. Francevillite group |
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Finchite | |
Sr(UO2)2(V2O8)·5H2O | |
orth., Pbcn | |
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IMA 2017-052 |
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Francevillite | |
Ba(UO2)2(V2O8)·5H2O | |
orth., Pcan | |
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G |
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Curienite | |
Pb(UO2)2(V2O8)·5H2O | |
orth., Pcan | |
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IMA 1967-049 |
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Fritzscheite | |
Mn(UO2)2(VO4,PO4)2·4H2O | |
orth., Pnam | |
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G |
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Dimers of edge-sharing tetragonal VO5-pyramides, forming V2O8 groups,
with pentagonal UO7 polyhedra in layers.
Formula, crystal system and space group for Fritzscheite is questionable. The data are for synthetic material, the identity
with natural material was never confirmed.
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4.HB.020. Vanuralite group |
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Vanuralite | |
Al(UO2)2(V2O8)(OH)·11H2O | |
mon., A2/a | |
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A |
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Metavanuralite | |
Al(UO2)2(V2O8)(OH)·8H2O | |
tric., P1 or P1 | |
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IMA 1970-003 |
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4.HB.025. Tyuyamunite group |
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Tyuyamunite | |
Ca(UO2)2(V2O8)·6-8H2O | |
orth., Pnan | |
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G |
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Metatyuyamunite | |
Ca(UO2)2(V2O8)·3H2O | |
orth., Pnam | |
FOTO | |
G |
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4.HB.030. Strelkinite |
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Strelkinite | |
Na2(UO2)2(V2O8)·6H2O | |
orth., Pnmm | |
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IMA 1973-063 |
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4.HB.035. Uvanite |
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Uvanite | |
(UO2)2V5+6O17·15H2O | |
orth. | |
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Q |
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4.HB.040. Rauvite |
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Rauvite | |
Ca(UO2)2V10O28·16H2O | |
orth. | |
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Q |
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4.HC. V[6] Sorovanadates |
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4.HC.005. Pascoite group (Pascoite family, with simple decavanadate groups [V5+10O28]6-) |
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Okieite | |
Mg3[V5+10O28]·28H2O | |
tric., P1 | |
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IMA 2018-080 |
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Pascoite | |
Ca3[V5+10O28]·17H2O | |
mon., C2 | |
FOTO | |
G |
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Hydropascoite | |
Ca3[V5+10O28]·24H2O | |
tric., P1 | |
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IMA 2016-032 |
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Magnesiopascoite | |
Ca2Mg[V5+10O28]·16H2O | |
mon., C2/m | |
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IMA 2007-025 |
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Lasalite | |
Na2Mg2[V5+10O28]·20H2O | |
mon., B2/b | |
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IMA 2007-005 |
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Ammoniolasalite | |
(NH4)2Mg2[V5+10O28]·20H2O | |
mon., C2/c | |
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IMA 2017-094 |
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Hummerite | |
K2Mg2[V5+10O28]·16H2O | |
tric., P1 | |
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G |
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Kokinosite | |
Na2Ca2[V5+10O28]·24H2O | |
tric., P1 | |
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IMA 2013-099 |
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Burroite | |
(NH4)2Ca2[V5+10O28]·15H2O | |
tric., P1 | |
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IMA 2016-079 |
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Wernerbaurite | |
(NH4)2Ca2[V5+10O28]·16H2O | |
tric., P1 | |
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IMA 2012-064, Rd |
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Hughesite | |
Na3Al[V5+10O28]·22H2O | |
tric., P1 | |
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IMA 2009-035a |
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Huemulite | |
Na4Mg[V5+10O28]·24H2O | |
tric., P1 | |
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IMA 1965-012 |
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Schindlerite | |
(NH4)4Na2[V5+10O28]·10H2O | |
tric., P1 | |
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IMA 2012-063, Rd |
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4.HC.010. Postite (Pascoite family, with simple decavanadate groups and intersticial OH) |
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Postite | |
Mg(H2O)6Al2(OH)2(H2O)8[V5+10O28]·13H2O | |
orth., Pccn | |
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IMA 2011-060 |
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4.HC.015. Rakovanite group (Pascoite family, with protonated decavanadate groups) |
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Rakovanite | |
Na3[H3V5+10O28]·15H2O | |
mon., P21/n | |
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IMA 2010-052 |
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Gunterite | |
Na4[H2V5+10O28]·22H2O | |
mon., C2/m | |
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IMA 2011-001 |
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4.HC.020. Nashite group (Pascoite family, with mixed valency decavanadate groups) |
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Bluestreakite | |
Na4Mg2[V4+2V5+8O28]·14H2O | |
mon., P21/n | |
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IMA 2014-047 |
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Nashite | |
Na3Ca2[V4+V5+9O28]·24H2O | |
mon., P21/n | |
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IMA 2011-105 |
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Trebiskyite | |
Na3Mg2[Ti4+V5+9O28]·22H2O | |
mon., P21/c | |
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IMA 2019-131 |
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4.HC.025. Caseyite (Pascoite family) |
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Caseyite | |
[(V5+O2)Al7.5(OH)15(H2O)13]2[H2V4+V5+9O28][V5+10O28]·90H2O | |
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mon., P21/n | |
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IMA 2019-002 |
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Protocaseyite | |
[Al4(OH)6(H2O)12][V10O28]·8H2O | |
tric., P1 | |
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IMA 2020-090 |
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4.HD. Inovanadates |
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4.HD.005. Metamunirite |
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Metamunirite | |
NaV5+O3 | |
orth., Pnma | |
FOTO | |
IMA 1990-044 |
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[VO3]n-chains, made up of zig-zag edge-sharing
VO5 square pyramides (Evans, 1991).
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4.HD.010. Munirite |
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Munirite | |
NaV5+O3·1.9H2O | |
mon., P21/a | |
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IMA 1982-038 |
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4.HD.015. Metarossite |
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Metarossite | |
Ca(V5+O3)2·2H2O | |
tric., P1 | |
FOTO | |
G |
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4.HD.020. Rossite |
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Rossite | |
Ca(V5+O3)2·4H2O | |
tric., P1 | |
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G |
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4.HD.025. Delrioite group |
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Calciodelrioite | |
Ca(V5+O3)2·4H2O | |
mon., I2/a | |
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IMA 2012-031 |
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Delrioite | |
Sr(V5+O3)2·4H2O | |
mon., I2/a | |
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Rd |
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[VO3]n-chains, made up of zig-zag edge-sharing
VO5 polyhedra (Kampf et al., 2012, Min. Mag. 76, 2803-2817).
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4.HD.030. Ansermetite |
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Ansermetite | |
MnV5+2O6·4H2O | |
mon., C2/c | |
FOTO | |
IMA 2002-017 |
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[VO3]n-chains, made up of zig-zag edge-sharing
VO5 distorted square pyramides, extending along [001]. The chains are linked by
MnO4(H2O)2 octahedra. This
arrangement results in a three-dimensional framework defining tunnels that host the two H2O
groups per formula unit belonging to MnO4(H2O)2
octahedra as well and two additional free H2O groups (Brugger et al., 2003, Can. Min. 41,
1423-1431).
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4.HD.035. Dickthomssenite |
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Dickthomssenite | |
MgV5+2O6·7H2O | |
mon., C2/c | |
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IMA 2000-047 |
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[VO3]n-chains, made up of edge-sharing
VO5 polyhedra. The chains are connected by Mg-octahedra to form (100) planes.
The planes are linked by layers of Mg(H2O)6 octahedra
and non-bonded H2O molecules (Hughes et al., 2001, Can. Min. 39,
1691-1700).
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4.HD.040. Pseudodickthomssenite |
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Pseudodickthomssenite | |
MgV5+2O6·8H2O | |
tric., P1 | |
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IMA 2021-027 |
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4.HD.045. Medvedevite |
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Medvedevite | |
KMn2+V5+2O6Cl·2H2O | |
mon., P21/c | |
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IMA 2021-027 |
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4.HE. Phyllovanadates |
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4.HE.005. Shcherbinaite |
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Shcherbinaite | |
V5+2O5 | |
orth., Pmmn | |
FOTO | |
IMA 1971-021 |
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Layers of edge- and corner-sharing VO5 square pyramides.
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4.HE.010. Cavoite |
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Cavoite | |
CaV3O7 | |
orth., Pnam | |
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IMA 2001-024 |
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Layers of distorted, corner-sharing VO5 square pyramids.
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4.HE.015. Bassoite |
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Bassoite | |
SrV4+3O7·4H2O | |
mon., P21/m | |
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IMA 2011-028 |
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Layers of distorted, corner-sharing VO5 square pyramids. The layers can be described
as built up of chains of edge-sharing VO5 pyramids pointing alternately up and down.
Every second pyramide of a chain is connected to both sides by distorted VO5 square
pyramids to the adjacent chains. The layers are connected via Sr in ninefold coordination (Bindi et al., 2011,
Min. Mag. 75, 2677-2686).
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4.HE.020. Melanovanadite |
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Melanovanadite | |
CaV4+2V5+2O10·5H2O | |
tric., P1 | |
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G |
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Layers of dimers of edge-sharing tetragonal V4+O5-pyramides,
forming V2O8 groups, connected by corner-sharing
V5+O4-tetrahedra. The layers are connected by
Ca cations and H2O (Konnert & Evans, 1987, Am. Min. 72, 637-644).
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4.HE.025. Häggite |
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Häggite | |
V3+V4+O2(OH)3 | |
mon., C2/m | |
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G |
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Häggite: zig-zag chains of corner-sharing VO6 octahedra, arranged in layers
(Evans & Mrose, 1957).
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4.HE.030. Doloresite |
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Doloresite | |
V4+3O4(OH)4 | |
mon., C2/m | |
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G |
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Doloresite: zig-zag chains of corner-sharing VO6 octahedra, connected to layers
(Evans & Mrose, 1957).
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4.HE.035. Duttonite |
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Duttonite | |
V4+O(OH)2 | |
mon., I2/c | |
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G |
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Duttonite: single chains of VO6 octahedra, joined into sheets
by sharing corners (Evans & Mrose, 1957).
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4.HE.040. Hewettite group |
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Hewettite | |
CaV5+6O16·9H2O | |
mon., P21/m | |
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G |
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Metahewettite | |
CaV5+6O16·3H2O | |
mon., A2/m | |
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G |
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Barnesite | |
Na2V5+6O16·3H2O | |
mon., P2/m | |
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A |
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Hendersonite | |
Ca1.3V6O16·6H2O | |
orth., Pnam or Pna21 | |
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A |
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Grantsite | |
(Na,Ca)2+xV6O16·4H2O | |
mon., A2/a | |
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A |
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Hewettite: layers of distorted, corner-sharing VO6 octahedra. The layers are connected via
Ca cations and water. The layer structure is similar to that of Li3V6O16
(Evans, 1989).
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4.HE.045. Straczekite group |
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Straczekite | |
(Ca,K,Ba)V8O20·3H2O | |
mon., C2/m | |
FOTO | |
IMA 1983-028 |
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Corvusite | |
(Na,Ca,K)1-x(V5+,V4+,Fe2+)V8O20·4H2O | |
mon., C2/m | |
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G |
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Fernandinite | |
(Ca,Na,K)0.9(V5+,V4+,Fe2+,Ti)8O20·4H2O | |
mon., C2/m | |
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Rd |
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Bariandite | |
Al0.6V8O20·9H2O | |
mon., C2/c or Cc | |
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IMA 1970-043 |
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Bokite | |
(Al,Fe,K)1.3(V5+,V4+,Fe3+)8O20·7.5H2O | |
mon., C* | |
FOTO | |
A |
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Layers of edge- and corner-sharing VO6 octahedra.
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4.HE.050. Pandoraite group |
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Pandoraite-Ca | |
CaV4+5V5+2O16·3H2O | |
mon., P2 | |
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IMA 2018-036 |
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Pandoraite-Ba | |
BaV4+5V5+2O16·3H2O | |
mon., P2 | |
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IMA 2018-024 |
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Pandoraite-Ba and pandoraite-Ca have vanadium oxide bronze layer structures formed of sheets of
V7O16 polyhedra that form the structural unit
and (Ba,Ca)(H2O)3 interlayers; the vanadium
is of mixed valence (4+, 5+) (Kampf et al., 2019, Can Min 57, 255-265).
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4.HF. Tektovanadates |
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4.HF.005. Bannermanite |
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Bannermanite | |
Na0.7V6O15 | |
mon., C2/m | |
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IMA 1980-010 |
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4.HG. With heteropolyanions |
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4.HG.005. Sherwoodite |
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Sherwoodite | |
Ca4.5[AlV4+2V5+12O40]·28H2O | |
tetr., I41/amd | |
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G |
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4.HG.010. Bicapite |
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Bicapite | |
[KNa2Ca2(H2O)25][H2PV5+12O40(V5+O)2] | |
tetr., I4/m | |
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IMA 2018-048 |
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4.HG.015. Kegginite |
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Kegginite | |
Pb3Ca3[As5+V5+12O40(VO)]·28H2O | |
trig., P3 | |
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IMA 2015-114 |
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4.HG.020. Pomite group |
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Pomite | |
Ca3[V4+5V5+10O37(CO3)]·37H2O | |
tric., P1 | |
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IMA 2021-063 |
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Pseudopomite | |
Ca3.5[V4+6V5+9O37(CO3)]·29H2O | |
tric., P1 | |
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IMA 2021-064 |
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4.HH. Unclassified V oxides |
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4.HH.005. Lenoblite |
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Lenoblite | |
V4+2O4·2H2O | |
orth., P21212 | |
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IMA 1970-002 |
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4.HH.010. Vanoxite |
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Vanoxite | |
V4+4V5+2O13·8H2O (?) | |
hex. (?) | |
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G |
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4.HH.015. Navajoite |
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Navajoite | |
(V5+,Fe3+)10O24·12H2O | |
mon., C2/m | |
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G |
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4.HH.020. Kazakhstanite |
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Kazakhstanite | |
Fe3+5V4+3V5+12O39(OH)9·9H2O | |
mon., C2/c or Cc | |
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IMA 1988-044 |
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4.HH.025. Satpaevite |
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Satpaevite | |
Al12V8O37·30H2O (?) | |
(?) | |
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Q |
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4.HH.030. Vanalite |
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Vanalite | |
NaAl8V5+10(O,OH)38·30H2O | |
mon., P2/m or other | |
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A |
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4.HH.035. Simplotite |
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Simplotite | |
CaV4+4O9·5H2O | |
mon., A2/m or other | |
FOTO | |
G |
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4.HH.040. Metadelrioite |
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Metadelrioite | |
SrCaV5+2O6(OH)2 | |
tric., P1 or P1 | |
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IMA 1967-006 |
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4.HJ. W[6] Tungsten-bronze |
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4.HJ.005. Wumuite |
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Wumuite | |
K(W2.67Al0.33)O9 | |
hex., P6/mmm | |
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IMA 2017-067a |
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4.HJ.010. Tewite |
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Tewite | |
K2(Te1.5□0.5)2W5O19 | |
orth., Pban | |
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IMA 2014-053 |
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4.HK. Heteropolytungstates |
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4.HK.005. Ophirite (heteropolytungstate) |
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Ophirite | |
Ca2Mg4[Zn2Mn2(H2O)2(Fe3+W9O34)2]·46H2O | |
tric., P1 | |
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IMA 2013-017 |
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G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and
generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
Q = Questionable mineral
© Thomas Witzke (2022)
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