Latrappite

latrappite

wohlerite

perovskite

monticellite

Images

Formula: Ca₂NbFe³⁺O₆
Simple oxide, vapnikite subgroup, perovskite supergroup. A nearly complete solid solution series exists between perovskite, latrappite and lueshite (Dana)
Crystal System: Orthorhombic
Specific gravity: 4.4
Hardness: 5½
Streak: Grey
Colour: Black
Environments

Carbonatites

Latrappite occurs in carbonatites (Webmin).

Localities

At the type locality, the Bond zone, Oka complex, Deux-Montagnes RCM, Laurentides, Quebec, Canada, latrappite occurs in a pyrochlore-rich carbonatite, in calcite associated with apatite, diopside, biotite, pyrochlore, magnetite, niocalite, dolomite, nepheline and monticellite (Dana, HOM).
Latrappite from the Bond Zone - Image

At the Badloch quarry, Germany, latrappite is associated with columbite (HOM).

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