13 terms

Rock Cycle

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sedimentary rock
a rock that forms from compressed or cemented layers of sediment
Cementation
A process whereby compacted sediments bind and stick together and turn into rock
Compaction
A process whereby sediments pack, crush, and settle under the action of gravity and pressure from overlying layers
Igneous Rock
Rock formed when heated magma or lava cools and hardens
metamorphic rock
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
Streak
the color of a mineral's powder
mineral
a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
Hardness
A measure of how easily a mineral can be scratched
Magma
Molten rock beneath the earth's surface
Lava
liquid magma that reaches the surface
Luster
The way a mineral reflects light
crystal formation
Geometric shape of a mineral that reflects its internal crystalline arrangement of atoms.
rock
A naturally occurring solid mixture of one or more minerals or organic matter