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Rocks

TermDefinition
Rock Cycle process which over many years, Earth materials form and change back and forth among igneous rocks, sedimentary rocks, and metamorphic rocks.
Rock Earth material made of a mixture of one or more minerals, glass, mineraloids, or organic matter.
Quartz a common mineral found in rocks.
Igneous Rocks formed by the cooling and hardening of molten material from a volcano or from deep inside Earth.
Lava molten rock from a volcano flowing onto Earth's surface.
Intrusive Igneous Rocks formed when magma cools below Earth's surface; generally have large mineral grains.
Extrusive Igneous Rocks form when magma extrudes onto Earth's surface and cools as lava; have a fin-grained texture.
Basaltic dark-colored, dense igneous rocks that form from magma rich in iron and magnesium.
Granitic light-colored igneous rocks formed from magma rich in silicon and oxygen. (thick and stiff, can build up a great deal of pressure).
Basalt high concentration of iron and magnesium because it formed from basaltic magma.
Metamorphic Rocks form from sedimentary, igneous, or other metamorphic due to increases in heat or pressure.
Foliated Rocks type of metamorphic rock created when mineral grains flatten and line up in parallel bands.
Nonfoliated Rocks metamorphic rock created when mineral grains change, grow, and rearrange, but don't form bands.
Sedimentary Rocks formed when fragments of rocks, minerals and/or organic matter are compacted or cemented together or precipitate out of solution.
Sediments loose materials such as rock fragments, mineral grains, and bits of plants and animals that have been transported by wind, water, or glaciers.
Compaction sedimentary rock forming process that occurs when layers of small sediments become compressed by the weight of layers above them.
Cementation process in which large sediments are glued together by minerals deposited between the sediments.
Chemical Sedimentary Rocks form when minerals are precipitated from a solution or are left behind when a solution evaporates.
Organic Sedimentary Rocks form from the remains of once-living things.
Created by: Rach
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