Minerals Flashcards
1
Q
Mineral
A
A substance that is formed naturally in the Earth, is inorganic chemical composition and has a crystal structure
2
Q
Streak
A
The color of a mineral’s powder when it’s rubbed against a porcelain plate
3
Q
Luster
A
The way a mineral reflects light
4
Q
Inorganic
A
Not derived from living matter
5
Q
Crystal
A
A solid formation that follows a pattern
6
Q
Hardness
A
The ability of a mineral to scratch or be 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 a freshly broken surface on a mineral that has a rough or irregular surface
9
Q
Mohs hardness scale
A
A hardness scale used to classify minerals
10
Q
Formula
A
A set chemical symbols showing the makeup of a chemical compound
