Lava That Cools Quickly Forms ____ Rocks. A. Extrusive Metamorphic C. Intrusive Metamorphic B. Extrusive Igneous D. Intrusive Igneous. Lava cools quickly on the surface of the earth and forms tiny microscopic crystals. Andesitic rocks have mineral compositions between those of ___ and basaltic rocks.

Andesitic rocks have mineral compositions between those of ___ and basaltic rocks. Lava cools quickly on the surface of the earth and forms tiny microscopic crystals. Lava that cools quickly forms ___ rocks.