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Q.
Cassiterite is an ore of:
Haryana PMTHaryana PMT 2000
Solution:
Cassiterite is an ore of $Sn$ .It is also called tinstone and has molecular formula of $SnO _{2}$. It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.