a solid inorganic substance of natural occurrence, "Minerals are naturally-occurring inorganic substances with a definite and predictable chemical composition and physical properties.

Characteristics of a Mineral

Solid Inorganic, Naturally Orcurring Defintite, Chemical Compostion Definite Crystalline Structure, Element or compound

Physical property videos.

Color, Luster, Streak, Cleavage, Fracture, Hardness.

Physical Properties of Minerals

hardness, luster, cleavage, crystal structure, chemical formula, streak, radioactivity, refraction, magnetism, and pleochroism. This site goes more into detail with the definitions : ----->http://www.windows.ucar.edu/tour/link=/earth/geology/mineral_id1.html&edu=high < -----


. Hardness simply describes how hard a mineral is. This can be tested by scratching the mineral. Check this out... A mineral can only be scratched by something that's harder than it.

Luster is a gentle sheen or soft glow, esp. that of a partly reflective surface

Color is the property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light

Streak is a long, thin line or mark of a different substance or color from its surroundings

Cleavage and Fracture is is the tendencyof crystalline materials to split along definite crystallographic structural planes.

Chemical Properties of a Mineral

Atoms, Molecules, Elements

Chemical Forumula


Hydrous Minerals

Mineral Series

Atomical Variation

Formula Variations

Variable Formula

Miner al Families

They are silicates, carbonates, phosphates, sulfates and oxides.

Special Properties

Most common mineral : Quartz