Know all about Picrite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Travertine belongs to Sedimentary Rocks.Texture of Picrite is Earthy, Rough whereas that of Travertine is Banded. Picrite appears Rough and Shiny and Travertine appears Fibrous. The luster of Picrite is subvitreous to dull while that of Travertine is dull to pearly. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo) and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.