Question

Jim observes that the mineral is mostly colorless, so he guesses that it is quartz. To be sure, he measures its hardness on the Mohs scale. If the mineral is quartz, its hardness should be _______.

A.
7
B.
2
C.
1
D.
6

Answer 1

A. 7

Step-by-step explanation:

on Moh's scake of hardness, quartz is a 7