minerals and rocks Flashcards
1
Q
Mineral
A
a substance that is formed naturally in the earth, is organic, has definite chemical composition and has a crystal structure.
2
Q
streak
A
the color of minerals powder when it is rubbed against a a porcelain,
3
Q
luster
A
the way that surface of the mineral reflects light
4
Q
inorganic
A
oxygen rules this domain
5
Q
Crystal
A
a solid formation that follows a pattern
6
Q
hardness
A
the ability of the mineral to scratch or be scratched by another mineral
7
Q
cleavage
A
the tendency of crystal 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
formula
A
a set of chemical symbols showing the makeup of a chemical compound
