Rocks and Minerals

Refers to a mineral’s ability to scratch another mineral or be scratched by another mineral.

A mineral that is rare and can be cut and polished, giving it a beautiful appearance.

What is the hardest mineral?

The hardness of a mineral is measured by a scale known as...

What was the purpose of the scratch test?

A canyon is created by ________wearing down rock over thousands of years.

What would smooth the surface of a rock quicker than lake water?

The freezing and melting of ice breaks down rocks, demonstrating the ______.

A precious stone that has been cut or polished.

A __________ is a natural, nonliving substance that makes up rocks.