Know all about Pegmatite and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Pegmatite belongs to Igneous Rocks while Oil shale belongs to Sedimentary Rocks.Texture of Pegmatite is Pegmatitic whereas that of Oil shale is Splintery. Pegmatite appears Layered, Banded, Veined and Shiny and Oil shale appears Muddy. The luster of Pegmatite is grainy, pearly and vitreous while that of Oil shale is dull. Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors whereas Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz and that of Oil shale are an oil and gas reservoir.