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Definition
| made up of minerals and organic matter |
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Definition
| describes rocks formed from cooled molten rock |
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Definition
| molten rock above the Earth's surface |
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Definition
| molten rock below the Earth's surface |
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Definition
| describes igneous rocks formed below the Earth's surface |
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Term
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Definition
| describes igneous rocks that form above the Earth's surface |
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Definition
| intrusive igneous rock with visible crystals, can be pink or grey in color |
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Definition
| volcanic glass, an extrusive igneous rock |
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Definition
| a basaltic, extrusive rock with holes |
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Definition
| solidified ash, extrusive |
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Term
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Definition
| a dark, extrusive igneous rock |
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Term
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Definition
| T/F - the longer it takes magma/lava to cool, the larger the crystal size |
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Definition
| igneous rock used by Native Americans for making arrowheads |
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