Basalt is a mafic (dark) igneous, extrusive volcanic rock. As such, basalt may be vesicular (containing small cavities) and brecciated (having angular fragments). It is typically hard, tough and dense.
Type: Rock
Description:
Basalt is a mafic (dark) igneous, extrusive volcanic rock. As such, basalt may be vesicular (containing small cavities) and brecciated (having angular fragments). It is typically hard, tough and dense.
Relation to Mining:
Decorative basalt is occasionally handpicked from mining operations, and generally quarried cut and polished into tiles, slabs or other decorative forms.
Uses:
Basalt is used as a crushed stone, decorative stone, dimension stone, and in insulation.