vocab 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 derived from living matter.
crystal
A solid formation that follows a pattern.
Hardness
The ability of a mineral to scratch or be scratched by another mineral.
cleavage
The tendency of crystals and minerals to break along definite planes results 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 uses to classify minerals.
Formula
A set of chemical symbols showing the makeup of a chemical compound.
