MetallurgyEasy
Question
Which one of the following is a mineral of iron?
Options
A.Malachite
B.Cassiterite
C.Pyrolusite
D.Magnetite
Solution
Mineral Chemical composition
Malachite CuCO3Cu ( OH )2
Cassiterite SnO2
Pyrolusite MnO2
Magnetite Fe3 O4
Thus, Magnetite is a mineral of iron.
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