ORBICULAR GRANITE FOR SALE

Orbicular granite is the name given to an unusual kind of plutonic granite formation. The granite forms as orbicules, spherical formations of concentric bands of minerals around a grain serving as a nucleus. They form as fluid-rich dioritic magma cools quickly around these nucleus grains. Some deposits' orbicules show gravitational deformation: they are deformed by each other, seemingly by stacking as they precipitated out of magma.