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