Minerals Flashcards
1
Q
Mineral
A
A substance that is formed naturally in the Earth, is inorganic, has definite chemical composition and has crystal structure.
2
Q
Streak
A
The color of a mineral’s powder when it is rubbed against a porcelain plate.
3
Q
Luster
A
The way the surface of mineral reflects light.
4
Q
Inorganic
A
Not derived from living matter.
5
Q
Crystals
A
A solid formation that follows a pattern.
6
Q
Hardness
A
The ability of a mineral to scratched by another mineral.
7
Q
Cleavage
A
The tendency of crystals and minerals to break along definite planes resulting in smooth surfaces.
8
Q
Fracture
A
The appearance of freshly broken surface on a mineral that ha rough or irregular surface.
9
Q
Mohs Hardness Scale
A
A hardness scale used to classify minerals.
