Minerals Flashcards
Mineral
A substance that is formed naturally in the earth, is inorganic, has a definite chemical composition and has a crystal structure.
Streak
The color of a minerals powder when it is rubbed against a porcelain plate.
Luster
The way the surface of a mineral reflects light.
Inorganic
Not diverted from living manner
Crystal
A solid formation that follows a pattern.
Hardess
The ability of a mineral to scratch or to be scratched by another mineral
Clevage
the tendency of crystals and minerals to break among definit planes resolving into a smooth surface.
Fracture
The appearance of a freshly broken surface on a mineral that has a rough or irregular surface
Mohs hardness scale
A scale used to classify minerals
Formula
A set of chemicals and symbols showing the make up of a chemical compound
