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