minerals Flashcards
1
Q
minerals
A
A substance that is formed naturally in the earth .
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 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.
