26299302-Spongy Porous Broken Basalt Rocks.zip

Basalt is a common extrusive igneous volcanic rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of earth. Basalt describes the formation in a series of lavas flows. Basalt commonly features fine-grained or glassy matrix interspersed with visible mineral grains. Grey to black in colour. Vesicular texture is called, when bulk mostly solid; when vesicles are over half volume of a specimen scoria. This forms dissolved gases come out of solution and form bubbles magma decompresses as it reaches, yet are trapped as erupted hardens before can escape. Spongy structure porous crushed and broken stones sider dolly frozen gibber reg regs geology geological UHD 3840×2160.