Rock forming minerals.

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What is a mineral?

A mineral is an element or chemical compound that is normally crystalline and has been formed as a result of geological processes.

Minerals are naturally occurring, inorganic crystalline compounds with a definite chemical composition.

Minerals are;

Solid

Made of atoms

Have a fixed chemical composition

crystal lattice with a regular repeating pattern

What is a crystal?

A crystal grows by minerals adding atoms around their margins.

They develop their shapes due to atom arrangement developing a CRYSTAL. A clean, well developed crystal is known as euhedral, whereas the opposite of this is known as Anhedral.

Mineral identification

Habit

Colour

Hardness

Cleavage

Fracture

Lustre

Specific gravity

Streak

Rock Forming Minerals

Minerals

Rock forming minerals