Know all about Picrite and Borolanite properties here. All properties of rocks are important as they define the type of rock and its application. Picrite and Borolanite belong to Igneous Rocks.Texture of Picrite is Earthy, Rough whereas that of Borolanite is Granular. Picrite appears Rough and Shiny and Borolanite appears Banded and Foilated. The luster of Picrite is subvitreous to dull while that of Borolanite is greasy to dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Borolanite is available in brown, buff, cream, green, grey, pink, white 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 Borolanite are cemetery markers.