Know all about Arkose and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Picrite belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Picrite is Earthy, Rough. Arkose appears Rough and Dull and Picrite appears Rough and Shiny. The luster of Arkose is dull while that of Picrite is subvitreous to dull. Arkose is available in reddish brown colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).