Know all about Trachyandesite and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Trachyandesite belongs to Igneous Rocks while Greenschist belongs to Metamorphic Rocks.Texture of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Greenschist is Foliated, Platy. Trachyandesite appears Dull and Soft and Greenschist appears Layered and Shiny. The luster of Trachyandesite is earthy while that of Greenschist is shiny. Trachyandesite is available in black, brown, light to dark grey colors whereas Greenschist is available in dark greenish - grey, green colors. The commercial uses of Trachyandesite are creating artwork, pottery and that of Greenschist are blackboards, manufacture of tools, writing slates.