Minerals

A set of chemical symbols showing the makeup of a chemical compound.

A substance that is found naturally in the earth, inorganic, has a definite chemical composition and has a crystal structure.

The colour of mineral’s powder when it is rubbed against a porcelain plate.

The way of surface of a mineral reflects lights.

Not derived from living matter.

A solid formation that follows a pattern.

The ability of a mineral to scratch or to be scratched by another mineral.

The tendency of crystals and minerals to break along definite planes resulting in smooth surfaces.

The appearance of a freshly broken surface on a mineral that has a rough or irregular surface.

A hardness scale used to classify minerals.