Granite Rocks : What Is Granite Rock And How Is It
In reference to the coarsegrained structure of such a holocrystalline rock, the word granite comes from the Latin granum, a grain. Strictly speaking, granite is an igneous rock with a volume of between 20% and 60% and at least 35% of the total feldspar consisting of alkali feldspar, although the term granite is commonly used to refer to a wider range of coarsegrained igneous