Know all about Variolite and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Variolite and Diorite belong to Igneous Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Diorite is Phaneritic. Variolite appears Dull and Soft and Diorite appears Shiny. The luster of Variolite is not available while that of Diorite is shiny. Variolite is available in black, brown, light to dark grey colors whereas Diorite is available in black, brown, light to dark grey, white colors. The commercial uses of Variolite are cemetery markers, creating artwork and that of Diorite are creating artwork, curling.