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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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Silica
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INFOTEXT
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1992-09-03
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237b
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8 lines
Silica is a silicon dioxide, SiO2, the
composition of the most common mineral group,
of which the most familiar form is quartz.
Other silica forms are chalcedony, chert,
opal, tridymite, and cristobalite.
Subject by: Simon Wiseman