All about Pegmatite and Greywacke Properties
Know all about Pegmatite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Pegmatite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Pegmatite is Pegmatitic whereas that of Greywacke is Clastic. Pegmatite appears Layered, Banded, Veined and Shiny and Greywacke appears Dull. The luster of Pegmatite is grainy, pearly and vitreous while that of Greywacke is dull. Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors whereas Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.