Basalt is described as a dark igneous rock. Basalt originates from lava that has extruded onto the surface of the Earth. Therefore the lava has cooled quickly, forming small crystals.
-see also:
"Basalt" is in the UNSPSC Code "11111609"
Basalt
Ref: 122179/2006-09-27
Other Database Pages Exist for this Phrase:
Igneous rock (Igneous rock is identified as rocks formed from ...)
Salt (Salt which is also known as table salt or rock ...)
Rock (Rock is the source of natural material from which ...)