Revision history of "Quartz"

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  • curprev 20:26, 27 June 2019Admin talk contribs 707 bytes +707 Created page with "{{Mineral |name=Quartz |freq=common |hardness=7 |density=2.65 |chemf=SiO2 }} Quartz is a mineral composed entirely of silicon dioxide. Both the "rock crystal" form and the..."