No sir, it is not. Basalt is an igneous rock, formed from a lava that was high in mafic (Heavy, dark) minerals, very high in viscosity. read more
Granite and basalt are opposites on these axies for the description of igneous rocks - granite is a slow cooled quartz rich rock, basalt a rapidly cooled mafic rock. Basaltic lava flow, Idaho Basalt is the stuff of the ocean floor. read more