Ms. Harvey's Igneous Rocks
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| Rock | mixture of cooled and hardened minerals
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| Igneous | means fire, cooled magma or lava
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| Molten | another word for melted material
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| Coarse | texture of rock that comes from slowly cooled, large crystals
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| Obsidian | glassy extrusive rock with no crystals
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| Intrusive | means cooled below the surface, from magma, cools slowly, large crystals
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| Mafic | molten material with magnesium and iron
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| Pumice | extrusive rock that is cooled on top of the lava from the foam
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| Fine | rock texture that comes from quickly cooled, small crystals
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| Granite | common extrusive rock, found on continents due to lower density
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| Felsic | molten material that is compsoed of feldspar and silica
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| Basalt | intrusive rock found on ocean floor due to its high density
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| Extrusive | means cooled above the surface, from lava, cools quickly, small crystals
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