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- * [[Coesite]]1 KB (90 words) - 09:52, 20 August 2012
- ...orph]]s of SiO<sub>2</sub> that occur in high-silica [[volcanic]] rocks. [[Coesite]] is a denser polymorph of quartz found in some meteorite impact sites and23 KB (3,123 words) - 09:55, 20 August 2012