Know all about Slate and Boninite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Boninite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Boninite is Aphanitic to Porphyritic. Slate appears Dull and Boninite appears Dull and Soft. The luster of Slate is dull while that of Boninite is vitreous. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Boninite is available in bluish - grey, brown, colourless, green, grey 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 Boninite are an oil and gas reservoir, cemetery markers, creating artwork, soil conditioner, source of magnesia (mgo).