quartz का मतलब है?इसके क्या उपयोग है?
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Explanation:
The Gemstone Quartz. Quartz is one of the most common and varied minerals on earth, and its abundant colors produce many gemstone types. ... Chalcedony describes any form of Quartz that is microcrystalline, in compact form without any visible crystals
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Answer:
it may be a brand of watch.
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