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