Granite
Granite is a very common igneous rock used every where. Especially in Georgia. Granite is used for many things. Many people have granite as a counter top. I have as a counter top at my house. People use it to build things to! http://www.beg.utexas.edu/mainweb/publications/graphics/granite-400.jpg http://en.wikipedia.org/wiki/Granite
Stone Mountain
Stone mountain formed over 300 million years ago when magma came out of the earths crust. Stone mountain is made of quartz monzonite. It is 5 miles long. http://www.guideoftravels.com/wp-content/uploads/2011/09/Stone-Mountain.jpg