Know all about Variolite and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Variolite belongs to Igneous Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Jasperoid is Earthy. Variolite appears Dull and Soft and Jasperoid appears Glassy or Pearly. The luster of Variolite is not available while that of Jasperoid is vitreous and pearly. Variolite is available in black, brown, light to dark grey colors whereas Jasperoid is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Variolite are cemetery markers, creating artwork 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).