Know all about Basaltic Trachyandesite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Basaltic Trachyandesite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Gritstone is Earthy. Basaltic Trachyandesite appears Dull and Soft and Gritstone appears Layered and Foliated. The luster of Basaltic Trachyandesite is not available while that of Gritstone is dull. Basaltic Trachyandesite is available in black, brown, light to dark grey colors whereas Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.