Question

copper and iron together present in which are
A dolomite
B malachite
C azurite
D copper pyrite

Answer 1

you're answer is the

(D)

a yellow copper ore (CuFeS2) made up of copper and iron sulfide. Synonyms: chalcopyrite Type of: mineral. solid homogeneous inorganic substances occurring in nature having a definite chemical composition. Beat with a stone on copper pyrites, and it immediately begins to crumble.