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Basalt

usgb/bəˈsɔːlt/Volume
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Geology TermPlay
Basalt is a commonly used term in geology; it helps to know basic geology vocabulary. SlideThe geologist explained that basalt forms the bedrock beneath the soil.
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Physical CharacteristicsPlay
Basalt has a fine-grained texture; it may help to visualize its smooth surface. SlideUpon close examination, one can see the fine-grained texture of the basalt rock.
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Visual ImageryPlay
Use words that evoke imagery, like 'Dark, igneous rock' to describe basalt's appearance. SlideThe island's shore is lined with dark, igneous basalt that cooled from molten lava.