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