Know all about Blueschist and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Blueschist belongs to Metamorphic Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Blueschist is Foliated whereas that of Gritstone is Earthy. Blueschist appears Dull and Banded and Gritstone appears Layered and Foliated. The luster of Blueschist and Gritstone is dull. Blueschist is available in blue, bluish - grey, purple, shades of blue 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 Blueschist are cemetery markers, commemorative tablets, creating artwork, curling, tombstones 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.