Minerals Flashcards
1
Q
Mineral
A
A substance that is formed natrally in the earth is organic has a chemical coposition and a crystal structure.
2
Q
Streak
A
The color of a miniral when it is rubbed on a porcelain plate
3
Q
Luster
A
the way the surface of a miniral 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 another mineral
7
Q
Cleavage
A
The tendancy of crystals and mierals to break along definite planes resulting in smooth surfaces
8
Q
Fracture
A
the apperance of a freshy broken surface on a miniral that has a rough or irregular surface
9
Q
Mohs hardness scale
A
a harness cale to classify minirals
10
Q
formula
A
A set of chemicals symbols showing the makeup of a chemical compound
