Latrappite
From EverybodyWiki Bios & Wiki
Latrappite is a orthorhombic mineral with a formula of Ca2NbFe3+O6, but may contain Ca2Nb2O7, CaTiO3, and NaNbO3. It is usually found in the color black or dark grayish brown.
It was named after La Trappe in Quebec, Canada and was discovered in 1963.
References
Latrappite: Mineral information
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