All about Slate and Picrite Properties
Know all about Slate and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Picrite is Earthy, Rough. Slate appears Dull and Picrite appears Rough and Shiny. The luster of Slate is dull while that of Picrite is subvitreous to dull. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, 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).