Feldspar

Feldspar is a common group of rock-forming minerals. With 20 recognized types, Feldspar comprises as much as 60% of the Earth’s Crust. Feldspars crystallize from magma and can also occur as compact minerals or veins. Usually white or nearly while, they may also be clear or light shades of orange or buff. Feldspar is usually cloudy with a glassy lustre.