Know all about Picrite and Blueschist properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Blueschist belongs to Metamorphic Rocks.Texture of Picrite is Earthy, Rough whereas that of Blueschist is Foliated. Picrite appears Rough and Shiny and Blueschist appears Dull and Banded. The luster of Picrite is subvitreous to dull while that of Blueschist is dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Blueschist is available in blue, bluish - grey, purple, shades of blue 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 Blueschist are cemetery markers, commemorative tablets, creating artwork, curling, tombstones.