Know all about Picrite and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Mudstone belongs to Sedimentary Rocks.Texture of Picrite is Earthy, Rough whereas that of Mudstone is Clastic. Picrite appears Rough and Shiny and Mudstone appears Rough and Dull. The luster of Picrite is subvitreous to dull while that of Mudstone is dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow 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 Mudstone are creating artwork, pottery.