Chemical Formula: (Mn,Ca)(Nb,Ti)5O12·9(H2O) (?)
Help on Composition: Composition: Molecular Weight = 764.66 g
 
Hydrogen 2.40 % H 21.44 % H2O 0.00 %
Oxygen 44.78 % O 0.00 % 0.00 %
Calcium 1.05 % Ca 1.47 % CaO 0.00 %
Titanium 15.65 % Ti 26.12 % TiO2 0.00 %
Manganese 5.75 % Mn 7.42 % MnO 0.00 %
Niobium 30.37 % Nb 43.45 % Nb2O5 0.00 %


100.00 % 99.90 %
 
Help on Empirical Formula: Empirical Formula: Mn2+0.8Ca0.2Nb2.5Ti2.5O12.3·9.1(H2O)
Help on Environment: Environment: Secondary mineral formed from late-stage hydrothermal alteration of Nb-Ti minerals
Help on Locality: Locality: Mts. Punkaruaiv, Karnasurt, Nepkhe, and Alluaiv, in the Lovozero massif, Kola Peninsula, Russia.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vasily I. Gerasimovskii (1911-1979), Russian mineralogist and geochemist who discovered many new minerals at Lovozero
Help on Synonym: Synonym: