Quartz yog ib qho oxide ntxhia nrog thav duab qauv, uas muaj qhov zoo ntawm hardness siab, ruaj khov kev ua tau zoo, rwb thaiv tsev zoo, thiab lwm yam. Nws yog dav siv hauv kev tsim kho, tshuab, metallurgy, khoom siv hluav taws xob, khoom siv tshiab, lub zog tshiab thiab lwm yam lag luam, thiab yog ib qho tseem ceeb...
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