Know all about Picrite and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Picrite and Scoria belong to Igneous Rocks.Texture of Picrite is Earthy, Rough whereas that of Scoria is Vesicular. Picrite appears Rough and Shiny and Scoria appears Glassy and Vesicular. The luster of Picrite and Scoria is subvitreous to dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Scoria is available in black, brown, dark grey to black, red 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 Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.