Know all about Variolite and Schist properties here. All properties of rocks are important as they define the type of rock and its application. Variolite belongs to Igneous Rocks while Schist belongs to Metamorphic Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Schist is Foliated, Platy. Variolite appears Dull and Soft and Schist appears Layered and Shiny. The luster of Variolite is not available while that of Schist is shiny. Variolite is available in black, brown, light to dark grey colors whereas Schist is available in black, blue, brown, dark brown, green, grey, silver colors. The commercial uses of Variolite are cemetery markers, creating artwork and that of Schist are used in aquariums, writing slates.