Basalt
Of volcanic rock.
The commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene.
This concept's ID is @1~74636
Contains
- plagioclase
Any of a series of triclinic feldspars that form rocks.
- pyroxene
Any of a group of crystalline silicate mineral common in igneous and metamorphic rocks.