rocks are a mixture of crystals of one or more minerals. rocks help built structures examples:...
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Rocks Rocks are a mixture of crystals of one
or more minerals. Rocks help built structures examples:
pyramids› They were used as carving tools
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Rock Cycle Rock cycle is the rock types change into
another rock type. 1. compaction and cementation 2.metamorphism 3. melting 4. cooling 5. solidification 6. weathering 7. erosion 8. deposition
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Sedimentary Rock
Rock that forms when sediments are compacted and cemented together.
Weathering and erosion
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Metamorphic rock Form from heat and pressure
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Igneous rock Forms from cooling of magma
Melting and cooling
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Composition and Texture
Composition is what the minerals in the rocks are made of
Texture is determined by sizes, shapes, and positions.
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Igneous rock Formations
Intrusive- cools beneath the surface Extrusive- forms on the surface
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Sedimentary origins Strata is layers that form from
deposition of sediment Clastic forms when rock or mineral
fragments stick together Stratification layering of sedimentary
rock
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Textures of Metamorphic Rocks Foliated is when minerals are aligned
Non-foliated is when metamorphic rocks do not appear to have any regular pattern