Know all about Greenschist and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Greenschist belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks.Texture of Greenschist is Foliated, Platy whereas that of Picrite is Earthy, Rough. Greenschist appears Layered and Shiny and Picrite appears Rough and Shiny. The luster of Greenschist is shiny while that of Picrite is subvitreous to dull. Greenschist is available in dark greenish - grey, green colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Greenschist are blackboards, manufacture of tools, writing slates and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).