Rocks and Mineral vocabulary words Flashcards
(10 cards)
Formula
A set of chemical symbols showing the makeup of chemical compound
Mineral
A substance that is formed naturally in the earth and has a definite chemical composition and has a crystal structure
Streak
The color of a minerals powder when its rubbed against a porcelain plate
Luster
The way the surface of a mineral reflects light
Inorganic
Not derived from living matter
Chrystal
A solid formation that follows a pattern
Hardness
The ability to scratch or be scratched by another mineral
Cleavage
The tendency of crystals and minerals to break along definite planes resulting in smooth surfaces
Fracture
The appearance of a freshly broken surface on a mineral that has a ruff or irregular surface
mohs hardness scale
A hardness scale used to classify minerals