Minerals Flashcards
Formula
A set of chemical symbols showing the makeup of a chemical compound.
Mineral
A substance that is found naturally in the earth, inorganic, has a definite chemical composition and has a crystal structure.
Streck
The colour of mineral’s powder when it is rubbed against a porcelain plate.
Luster
The way of surface of a mineral reflects lights.
Ingornic
Not derived from living matter.
Crystal
A solid formation that follows a pattern.
Hardness
The ability of a mineral to scratch or to be scratched by another mineral.
Cleavage
The tendency of crystals and minerals to break along definite planes resulting in smooth surfaces.
Fracture
The appearance of a freshly broken surface on a mineral that has a rough or irregular surface.
Mohs Hardness Scales
A hardness scale used to classify minerals.
