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Columbite-(Fe) - Analalava District, Sofia Region, Mahajanga (Majunga) Province, Madagascar (#:MINS9211)

Interesting specimen with black metallic columbite crystals up to 3,0 cm long.

Formula :
Fe²⁺Nb₂O₆
System: orthorhombic Hardness:6 Rarity:not common
Strunz id:IV/D.18-30 - OXIDES and HYDROXIDES
Name origin: From the ferrum (iron) content and Columbia, for America, the source of the first specimens.

Specimen weight:205 gr.

Crystal size:Up to 3,0 cm tall

Overall size: 40mm x 40 mm x 48 mm

Our Price:€ 78,00

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Columbite-(Fe) - Analalava District, Sofia Region, Mahajanga (Majunga) Province, Madagascar

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