On the Mohs hardness scale,quartz has a hardness of 7 and calcite has a hardness of 3.This means that _______.
A) calcite can scratch quartz
B) quartz is four times harder than calcite
C) calcite is four times harder than quartz
D) quartz can scratch calcite

Question

Quizplus · Accepted Answer

Quartz has a higher hardness value than calcite, which means it can scratch calcite but not the other way around.

On the Mohs Hardness Scale,quartz Has a Hardness of 7