Know all about Slate and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Slate is Foliated whereas that of Jasperoid is Earthy. Slate appears Dull and Jasperoid appears Glassy or Pearly. The luster of Slate is dull while that of Jasperoid is vitreous and pearly. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Jasperoid is available in black, brown, colourless, green, grey, pink, white 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 Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).