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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Sillimanite
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INFOTEXT
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1992-09-02
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Alluminium silicate, Al2SiOs, a mineral that
occurs either as white to brownish prismatic
crystals or as minute white fibres. It is an
indicator of high temperature conditions in
metamorphic rocks formed from clay sediments.
Andalusite, kyanite, and sillimanite are all
polymorphs of Al2SiOs.