natural - not man-made, solid - not a liquid or a gas, inorganic - is not and never was alive, constant - must have a __________ chemical compostion, luster - how the light reflects off the mineral (metallic, dull, glassy, etc.), hardness - how easily the rock is broken or scratched, Mohs Scale - a way to describe the hardness of a mineral, Streak - the color of the powder left when a mineral is rubbed on a rough surface, color - should only be used to identify a mineral with other properties because many can be the same, Cleavage - the way a mineral breaks; rough or smooth edges, flakes, cubes, etc.,

Minerals

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