Chemical Formula:
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(Mn,Ca)(Nb,Ti)5O12·9(H2O) (?) |
Composition:
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Molecular Weight = 764.66 g |
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Calcium |
1.05 % |
Ca |
1.47 % |
CaO |
0.00 % |
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Titanium |
15.65 % |
Ti |
26.12 % |
TiO2 |
0.00 % |
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Manganese |
5.75 % |
Mn |
7.42 % |
MnO |
0.00 % |
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Niobium |
30.37 % |
Nb |
43.45 % |
Nb2O5 |
0.00 % |
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Hydrogen |
2.40 % |
H |
21.44 % |
H2O |
0.00 % |
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Oxygen |
44.78 % |
O |
0.00 % |
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0.00 % |
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100.00 % |
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99.90 % |
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Empirical Formula:
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Mn2+0.8Ca0.2Nb2.5Ti2.5O12.3·9.1(H2O) |
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Environment:
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Secondary mineral formed from late-stage hydrothermal alteration of Nb-Ti minerals |
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Locality:
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Mts. Punkaruaiv, Karnasurt, Nepkhe, and Alluaiv, in the Lovozero massif, Kola Peninsula, Russia.. Link to
MinDat.org
Location Data.
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Name Origin:
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Named for Vasily I. Gerasimovskii (1911-1979), Russian mineralogist and geochemist who discovered many new minerals at Lovozero |
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Synonym:
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