Know all about Slate and Wehrlite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Wehrlite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Wehrlite is Banded. Slate appears Dull and Wehrlite appears Rough and Banded. The luster of Slate is dull while that of Wehrlite is metallic. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Wehrlite is available in dark greenish - grey, green 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 Wehrlite are cemetery markers, creating artwork, gemstone, jewelry.