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