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