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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE
according to E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001)
under construction !!!!
7. SULFATES
(Sulfates, Selenates, Tellurates, Chromates, Molybdates, Wolframates)
7.F: Chromates
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7.FA. Without additional anions |
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7.FA.05. Tarapacaite group |
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Tarapacáite | |
K2(CrO4) | |
orth., Pnam | |
FOTO | |
| | G |
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7.FA.10. Chromatite group |
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Chromatite | |
Ca(CrO4) | |
tetr., I41/amd | | | | | | A |
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7.FA.15. Hashemite group |
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Hashemite | |
Ba(CrO4) | |
orth., Pnma | | | | | | IMA 1978-006 |
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7.FA.20. Crocoite group |
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Crocoite | |
Pb(CrO4) | |
mon., P21/b | |
FOTO | |
| | G |
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7.FB. With additional O, V, S, Cl |
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7.FB.05. Phoenicochroite group |
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Phoenicochroite | |
Pb2O(CrO4) | |
mon., C2/m | |
FOTO | |
| | A |
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7.FB.10. Santanaite group |
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Santanait | |
Pb11O12(CrO4) | |
hex., P6322 | |
| | | | A |
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7.FB.15. Wattersite group |
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Wattersite | |
Hg1+4Hg2+O2(CrO4) | |
mon., B2/b | |
| | | | IMA 1987-030 |
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7.FB.20. Deanesmithite group |
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Deanesmithite | |
Hg1+2Hg2+3S2O(CrO4) | |
tric., P-1 | |
| | | | IMA 1991-001 |
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7.FB.25. Edoylerite group |
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Edoylerite | |
Hg2+3S2(CrO4) | |
mon., P21/c | |
FOTO | | | | IMA 1987-008 |
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7.FB.30. Georgerobinsonite group * |
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Georgerobinsonite * | |
Pb4(CrO4)2(OH)2FCl | |
orth., Pmmn | | | | | | IMA 2009-068 |
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7.FC. With PO4, AsO4, VO4, SiO4 |
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7.FC.05. Vauquelinite group |
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Vauquelinite | |
CuPb2(CrO4)(PO4)(OH) | |
mon., P21/n | |
FOTO | | | | G |
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7.FC.10. Fornacite group |
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Fornacite | |
CuPb2(CrO4)(AsO4)(OH) | |
mon., P21/c | |
| | | | G |
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Molybdofornacite | |
CuPb2(MoO4)(AsO4)(OH) | |
mon., P21/c | |
| | | | IMA 1982-062 |
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7.FC.15. Iranite group |
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Iranite | |
ZnPb10(CrO4)6(SiO4)2(OH)2 | |
tric., P1 (?) | |
| | | | A |
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Hemihedrite | |
ZnPb10(CrO4)6(SiO4)2F2 | |
tric., P1 | |
| | | | IMA 1967-011 |
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7.FC.20. Embreyite group |
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Embreyite | |
Pb5(CrO4)2(PO4)2 · H2O | |
mon., A2/m (?) | |
FOTO | | | | A |
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Cassedanneite | |
Pb5(CrO4)2(VO4)2 · H2O | |
mon., A2/m | |
| | | | A |
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7.FD. Dichromates |
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7.FD.05. Lopezite group |
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Lópezite | |
K2Cr2O7 | |
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| | | | A |
in bold: grandfathered, IMA accepted, renamed and redefined (with IMA approval) minerals,
in normal letters: minerals published without IMA approval, questionable minerals, polytypes
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
GROUP = a name used to designate a group of species
N = Mineral published without approval of the CNMNC
Q = Questionable mineral
H = Hypothetical mineral (synthetic, anthropogenic, etc.)
D = Discredited by the CNMNC
Poly = Polytype
© Thomas Witzke / Stollentroll (2007-2012)
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