Know all about Dolomite and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite belongs to Sedimentary Rocks while Porphyry belongs to Igneous Rocks.Texture of Dolomite is Earthy whereas that of Porphyry is Porphyritic. Dolomite appears Glassy or Pearly and Porphyry appears Dull. The luster of Dolomite is vitreous and pearly while that of Porphyry is dull. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas Porphyry is available in black, brown, colourless, green, grey, red, rust, white 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 Porphyry are creating artwork, gemstone, jewelry.