Minerals Vocabulary - Goldberg
Minerals Vocabulary (:
Terms
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- fracture
- breaks with rough, jagged edges
- gem
- highly prized mineral
- luster
- shiny or dull (metallic/nonmetallic)
- magma
- hot liquid rock beneath the earths surface
- mineral
- naturally occuring inorganic solid with a definite structure and composition
- crystal
- solids formed from a repeating patttern of atoms
- silicate
- oxygen + silicon - abundant in the earths crust
- streak
- color of the mineral when its broken up and powdered. softer minereals streak easily
- ore
- useful - minerals mined at a profit
- cleavage
- breaks along smooth, flat surfaces
- titanium
- strong, durable, and low density
- hardness
- a measure of how easily a mineral can be scratched