
Basalt
Geology Term
Basalt is a commonly used term in geology; it helps to know basic geology vocabulary.

The geologist explained that basalt forms the bedrock beneath the soil.
Physical Characteristics
Basalt has a fine-grained texture; it may help to visualize its smooth surface.

Upon close examination, one can see the fine-grained texture of the basalt rock.
Visual Imagery
Use words that evoke imagery, like 'Dark, igneous rock' to describe basalt's appearance.

The island's shore is lined with dark, igneous basalt that cooled from molten lava.
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