Minerals Review Guide

What are the five requirements for being a mineral?

Are the following materials minerals? Why or why not? Water:

Coal:

Mercury:

Name the most common element in the Earth's crust

How are minerals tested?

Mohs scale of hardness goes from ________ to _________. The softest mineral is ___________ the hardest mineral is _______________.

Define the following terms: Hardness

Luster

Streak