Minerals Flashcards
Mineral
A substance that is formed naturally in the Earth, is inorganic, has definite chemical composition and has crystal structure.
Streak
They color of a minerals powder when it is rubbed against a porcelain plate.
Luster
They way the surface of a mineral reflects light.
Inorganic
Not derived from living matter.
Cyrstal
A solid formation that follows a pattern
Hardness
The ability of a mineral to scratch or be scratched by another mineral.
Cleavage
The tendacy 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 Scale
A hardness scale used to classify minerals
Formula
A set of chemical symbols showing the makeup of a chemical compound.
