Know all about Dolomite and Hyaloclastite properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite belongs to Sedimentary Rocks while Hyaloclastite belongs to Igneous Rocks.Texture of Dolomite is Earthy whereas that of Hyaloclastite is Pyroclastic. Dolomite appears Glassy or Pearly and Hyaloclastite appears Dull. The luster of Dolomite is vitreous and pearly while that of Hyaloclastite is dull and grainy. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas Hyaloclastite is available in brown, grey, yellow colors. The commercial uses of Dolomite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Hyaloclastite are cemetery markers, creating artwork.