Igneous Rock
Igneous Rock is a rock that is made from magma cooling and solidifying above or below the Earth's surface. Intrusive rocks are cooled below the surface and extrusive rocks are cooled above or on the surface. Intrusive rocks are also usually bigger and contain more crystals.
Granite: Granite is an igneous rock found in Blue Ridge and Piedmont, Georgia. It is used for tile floors, building monuments, and sculptures. It's made of quartz, mica, and feldspar. Granites are pink to gray in color and are found in continental plates of the Earth's crust.
Pegmatite: Pegmatite is an igneous rock found in Upson County , Georgia. It is used as a source of Lithium and is also a source or many minerals and gems. Pegmatite is made of crystals bigger than 2.5 cm and it often contains valuable gemstones. Pegmatites form during the final stage of magma's crystallization.
Pegmatite: Pegmatite is an igneous rock found in Upson County , Georgia. It is used as a source of Lithium and is also a source or many minerals and gems. Pegmatite is made of crystals bigger than 2.5 cm and it often contains valuable gemstones. Pegmatites form during the final stage of magma's crystallization.