Minerals Flashcards
mineral
A substance that is formed natrually in the Earth, inorganic, has a definite chemical composition and has a crystal structure.
Streak
The color of a minerals powder when it is rubbed against a porcelain plate.
Luster
The way the surface of a mineral reflects light.
Inorganic
Not derived from living matter.
Crystal
A solid formation that follows a pattern.
hardness
The ability of a mineral to scratch or be scretched by another mineral
Cleavage
The tendency of crystals and minerals to break along definite planes resuting in smooth surfaces
Fracture
The appearance of a freshly broken surface on a mineral has rough or irregular surface.
Mohs hardness scale
A hardness scale used to classify minerals.
Formula
A set of chemical symbols showing symbols showing the makup of a chemial compound.
