Know all about Hyaloclastite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Gritstone is Earthy. Hyaloclastite appears Dull and Gritstone appears Layered and Foliated. The luster of Hyaloclastite is dull and grainy while that of Gritstone is dull. Hyaloclastite is available in brown, grey, yellow 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 Hyaloclastite are cemetery markers, 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.