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The Rock Cycle

by Hunter Black

Pages 2 and 3 of 6

Rock Cycles
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Igneous Rock
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igneous rock is a type of rocks that are formed when molten rock cools to a soil state they are found at volcanoes on the surface of earth or while melted rock is still inside the crust

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three examples of igneous rock is andesite, basalt, dacite

adeiste- fill in construction and roading industries

basalt- used in construction (e.g. as building blocks or in the groundwork), making cobblestones (from columnar basalt) and in making statues

dacite- Dacite is sometimes used to produce crushed stone

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Sedimentary Rocks
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Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms

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three examples of sedimentary rock is sandstone, limestone, and shale.

Sandstone-Sandstone is a sedimentary rock composed mostly of quartz sand, but it can also contain significant amounts of feldspar, and sometimes silt and clay

Limestone- is a sedimentary rock composed principally of calcium carbonate (calcite) or the double carbonate of calcium and magnesium (dolomite)

Shale- is commercially important. It is used to make brick, pottery, tile, and Portland cement

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Metamorphic Rock
Metamorphic rock feels like crystalline and often have a “squashed” (foliated or banded) texture

Three types of metamorphic rock is- Phyllite,Schist,Gneiss

Phyllite- Phyllite is a foliated metamorphic rock rich in tiny sheets of sericite mica. Phyllite is a durable and soft rock and used as decorative aggregates, floor tiles, and as exterior building, or facing stone

Schist- It is used inbuilding houses or walls

Gneiss- Gneiss is a common and widely distributed type of metamorphic rock

The Rock Cycle

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