Kyanite, Magnesite
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Kyanite crystals with magnesite, 6.5 cm, from Cabeceiras, Brumado. Antônio Mourão Guimarães Museum, RHI Magnesita; Carlos Cornejo photo.
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Mineral guide
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aluminum silicate with sapphire-blue blades and pleochroism; forms in metamorphic rocks and yields gemmy prisms or blade clusters, prized for color.Regional guide
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