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Pseudobrookite.

Оглавление

Fe₄(TiO₄)₃, ferric orthotitanate. TiO₂ = 44-53%.

Orthorhombic.

G = 4·39-4·98. H = 6. Dark brown to black.

Norway; France.

The Rare Earths: Their Occurrence, Chemistry, and Technology

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