Know all about Variolite and Granulite properties here. All properties of rocks are important as they define the type of rock and its application. Variolite belongs to Igneous Rocks while Granulite belongs to Metamorphic Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Granulite is Granoblastic. Variolite appears Dull and Soft and Granulite appears Veined or Pebbled. The luster of Variolite is not available while that of Granulite is vitreous. Variolite and Granulite are available in black, brown, light to dark grey colors. The commercial uses of Variolite are cemetery markers, creating artwork and that of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones.