Know all about Picrite and Appinite properties here. All properties of rocks are important as they define the type of rock and its application. Picrite and Appinite belong to Igneous Rocks.Texture of Picrite is Earthy, Rough whereas that of Appinite is Porphyritic. Picrite appears Rough and Shiny and Appinite appears Dull, Banded and Foilated. The luster of Picrite and Appinite is subvitreous to dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey 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 Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner.