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