minerals Flashcards
a substance that is formed natrurally in the earth, i 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 of a mineral to scratch or be scrached by another mineral.
Hardness
The tendancy of crystals and minerals to break along definite planes 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
