The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

The forms in which various metals and non metals occur in nature are c

1.	The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?
A.	Cassiterite
B.	Sphalerite
C.	Chalcopyrite
D.	Calcite
Answer» E.

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The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

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