Earth & Space Ch. 3

Substances found naturally in the earth that have a crystaline structure

Compounds containing flourine, chlorine, bromine, or iodide

Includes pyrito or fools' gold which is known for its metal-like luster and golden color

Includes magnetite, which is composed of iron bonded to oxygen, is black in color and has cubic crystals

Contain carbon bonded to oxygen

Largest group of minerals that contain silicon and oxygen, which compose over 90% of the earth's crust

A line of powder left by a mineral when it is rubbed across a glazed porcelain

Indicates how a mineral's surface reflects light

The scale used to measure a minerals hardness from softest to hardest. The scale runs from 1 to 18.

The tendency of a mineral to break along certain planes