Know all about Slate and Essexite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Essexite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Essexite is Granular. Slate appears Dull and Essexite appears Banded. The luster of Slate is dull while that of Essexite is not available. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Essexite is available in dark grey to black 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 Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones.