Minerals Flashcards
The color of the mineral in its powdered form.
Streak
The way in which light reflects off of the surface of the mineral / Shine.
Luster
Two main types of Luster.
Metallic - light sparkles off the mineral.
Non-metallic - dull, do not have any shine.
The way in which a mineral tends to break.
Breakage
Minerals that break along smooth planes parallel to zones of weak bonding displays _____.
Cleavage
Minerals that tend to break along curved surfaces without a definite shape displays _____.
Fracture
Mineral’s resistance to being scratched.
Hardness
The scale used to measure a mineral’s hardness.
Moh’s Scale of Hardness
An inorganic, naturally occurring solid that has a definite chemical composition and atomic structure.
Mineral