| cristobalite |
a white mineral consisting of silica; found in volcanic rocks
Ãâó: wordnet.princeton.edu/perl/webwn
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| cristobalite |
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Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| cristobalite | a white mineral consisting of silica |
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