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wns rocks

Rocks and Minerals Study Guide

QuestionAnswer
Rock A large concentrated mass of stone material
Mineral A naturally occurring solid in the earth's crust
Streak When a rock color is ground in to powder
Hardness How easy a rock is scratched
Color The ability to take on color.
Cleavage The quantity of the crystalizing substance
Luster How the mineral reflects light
Should you perform more than one test to identify a mineral? yes, properties include hardness, luster, streaks, structure and texture
Igneous rocks - 2 types Intrusive - formed inside the earth's crustExtrusive - formed outside the earth's crust
Extrusive Igneous Rock Formed outside the earth's crust
Intrusive Igneous Rock Formed inside the earth's crust
What type of rock would we find fossils Sedimentary rocks are made of what was once living things
Sedimentary rocks Sediment is deposited then pressure forces the layers together to form the rock
Metamorphic rocks Formed from other types of rocks by pressure, heat or chemical reactions
Created by: wsone
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