Basalt is a dark-colored, fine-grained, mafic igneous rock formed from the rapid cooling of low-viscosity, magnesium- and iron-rich lava at or near the surface of Earth.
Basalt 3D Model by Rutgers University Geology Museum
Basalt is a dark-colored, fine-grained, mafic igneous rock formed from the rapid cooling of low-viscosity, magnesium- and iron-rich lava at or near the surface of Earth.
Basalt 3D Model by Rutgers University Geology Museum