Know all about Trachyte and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte and Scoria belong to Igneous Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Scoria is Vesicular. Trachyte appears Banded and Scoria appears Glassy and Vesicular. The luster of Trachyte is metallic while that of Scoria is subvitreous to dull. Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Trachyte are cemetery markers, creating artwork and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.