Cassiterite - Simple English Wikipedia, the free encyclopedia
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Cassiterite is a mineral. Its chemical formula is SnO2. It contains tin dioxide. It is black because of impurities. It is the main ore of tin. Its Mohs hardness is 6-7.
Cassiterite is a mineral. Its chemical formula is SnO2. It contains tin dioxide. It is black because of impurities. It is the main ore of tin. Its Mohs hardness is 6-7.