raw granite

What Is Granite Rock? Granite, coarse- or medium-grained intrusive igneous rock that is rich in quartz and feldspar; it is the most common plutonic rock of the Earth’s crust, forming by the cooling of magma (silicate melt) at depth. … The principal constituent of granite is feldspar. What is granite stone? Granite (/ˈɡræn.ɪt/) is a