Latrappite

General Information:
 Chemical Formula:
(Ca,Na)(Nb,Ti,Fe)O3
 Environment:
Carbonitite rocks. The crystal structure of latrappite, determined by Rietveld analysis, is similar to that of CaTiO3 perovskite.
 IMA Status:
Approved IMA 1964
 Locality:
Oka, Kaiserstuhl and Magnet Cove carbonatite complexes.
Physical Properties:
 Cleavage:
None
 Color:
black.
 Density:
4.4
 Diaphaniety:
Opaque
 Hardness:
5.5 - Knife Blade
 Luster:
Metallic
 Streak:
gray
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