Know all about Gritstone and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Dacite belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Dacite is Aphanitic to Porphyritic. Gritstone appears Layered and Foliated and Dacite appears Vesicular. The luster of Gritstone is dull while that of Dacite is subvitreous to dull. Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey colors. The commercial uses 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 and that of Dacite are commemorative tablets, creating artwork.