Bentorite

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Bentorite is a mineral with the chemical formula Ca₆(Cr,Al)₂(SO₄)₃(OH)₁₂·26(H₂O). It is colored violet to light violet. Its crystals are hexagonal to dihexagonal dipyramidal. It is transparent and has vitreous luster. It has perfect cleavage. It is not radioactive. Bentorite is rated 2 on the Mohs Scale.

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http://www.webmineral.com/data/Bentorite.shtml - Webmineral Entry

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Categories: Mineral stubs | Calcium minerals | Chromium minerals | Aluminium minerals | Sulfate minerals | Hydroxide minerals

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