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14 Cards in this Set

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rock
A solid mixture of crystals of one or more minerals or other materials
composition
The makeup of a rock; describes either the minerals or elements present in it
texture
The sizes, shapes and positions of the grains that a rock is made of
Rock cycle
The process by which one rock type changes into another rock type
Sedimentary rock
Rock that forms when sediments are compacted and cemented together
strata
Layers of sedimentary rock that form from the deposition of sediment
stratification
The layering of sedimentary rock
Metamorphic rock
Rock that forms when the texture and composition of preexisting rock changes due to heat or pressure
foliated
The texture of metamorphic rock in which the mineral grains are aligned like the pages of a book
nonfoliated
The texture of metamorphic rock in which mineral grains show no alignment
magma
The hot liquid that forms when rock partially or completely melts; may include mineral crystals
Igneous rock
Rock that forms from the cooling of magma
Intrusive
The type of igneous rock that forms when magma cools and solidifies beneath Earth’s surface
Extrusive
The type of igneous rock that forms when lava or pyroclastic material cools and solidifies on the Earth’s surface