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