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Types of Rocks (Igneous (Extrusive (Cool above earth's surface (Scoria…
Types of Rocks
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Sedimentary
Biological
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Characteristics:soft, interlocking crystals
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Chemical
when minerals in groundwater crystallise or when the water evaporates, forming crystals
Characteristics: can be layered, mostly soft
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Clastic
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Characteristics:clasts,straight layers, non-interlocking
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