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Minerals/Earth Crust

Minerals of the Earth's Crust

WordDefinitions
mineral a solid material of Earth's crust with a definite composition
luster the way light bounces off a mineral's surface
streak the color of the powder left when a mineral is rubbed against a hard, rough surface
hardness how well a mineral resists scratching
cleavage the tendency of a mineral to break along flat surfaces
ore a mineral containing a useful substance
gem a mineral valued for being rare and beautiful
nonrenewable resource a resource that cannot be replaced within a short period of time or at all
Created by: 1smartguyBrandon
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