Know all about Slate and Lamprophyre properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Lamprophyre belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Lamprophyre is Porphyritic. Slate appears Dull and Lamprophyre appears Dull, Banded and Foilated. The luster of Slate is dull while that of Lamprophyre is subvitreous to dull. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Lamprophyre are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).