Pick up the poly-mineralic rock from the following:

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Pick up the poly-mineralic rock from the following:
« on: May 18, 2017, 08:43:23 AM »
Question: Pick up the polymineralic rock from the following:

Options are:

A.     Quartz sand
B.     Pure gypsum
C.     Magnesite
D.     Granite
E.     None of these

Correct answer is:

D.     Granite