minerals vocab words Flashcards
(9 cards)
1
Q
mineral
A
a substance that is formed naturally in the earth, inorganic, has a definite chemical composition and a crystal structure.
2
Q
streak
A
The color of a minerals powder when it’s rubbed against a porcelain plate.
3
Q
luster
A
the way the surface mineral reflects light
4
Q
inorganic
A
not derived from living matter
5
Q
crystal
A
a solid formation that follows a specific pattern
6
Q
hardness
A
the ability to scratch or be scratched by other minerals
7
Q
cleavage
A
The tendency of crystals and minerals to break along defiant planes resulting in smooth surfaces
8
Q
fracture
A
the appearance of a freshly broken surface on a mineral that has a rough irregular surface
9
Q
mohs hardness scale
A
a hardness scale used to classify minerals
