What are the 3 main types of rocks?

......... are scientists that study the structure, rocks, and minerals of Earth

When magma comes to the surface of Earth it is called...?

The weathering of the Earth produces...?

When sediment moves around, it is called...?

Humus is found in what substance?

An _________ substance is mad of things that have ever been alive.

Scientists that specifically study minerals are called...?

Which one of these is used to measure the characteristics?

This measures how well the mineral reflects light.

How to measure hardness in minerals?

When a mineral is rubbed against another surface, the powder left is called...

If a mineral breaks cleanly and evenly, it is a ________ breakage.

If a gemstone is kept in a museum, it is likely to be a _________ stone.

Used in jewelry, sculptures, and weapons are what kind of stones...?

Usually found in Asia, this green gem is called...?

Usually a beautiful blue/green color and found in the Western part of the US.

A mineral that can be cut and polished for use is called a...?