I suppose you are taking Earth Science and are in Grade 9?? Basalt --
Color: Black Composition: Mafic Texture: Aphanetic Cooling/Crystallization History: Extrusive and Fast Tectonic Setting: Hot Spots, Divergent Plates, Mid Ocean Ridges Determining Factor: Basalt is Aphanetic and has Small Crystals Streak: white. Cleavage: Basalt has no cleavage, it has fracture...
