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Böhmite

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bohmite

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How to Pronounce bohmite - American English

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How to pronounce bohmite

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How to say "bohmite"! (High Quality Voices)

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PARAVAUXITE  Hydrated Iron Aluminum Phosphate Hydroxide 🔊

Boehmite or böhmite is an aluminium oxide hydroxide (γ-AlO ) mineral, a component of the aluminium ore bauxite. It is dimorphous with diaspore. It crystallizes in the orthorhombic dipyramidal system and is typically massive in habit. It is white with tints of yellow, green, brown or red due to impurities. It has a vitreous to pearly luster, a Mohs hardness of 3 to 3.5 and a specific gravity of 3.00 to 3.07. It is colorless in thin section, optically biaxial positive with refractive indices of nα = 1.644 - 1.648, nβ = 1.654 - 1.657 and nγ = 1.661 - 1.668.
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