Know all about Schist and Phonolite properties here. All properties of rocks are important as they define the type of rock and its application. Schist belongs to Metamorphic Rocks while Phonolite belongs to Igneous Rocks.Texture of Schist is Foliated, Platy whereas that of Phonolite is Granular. Schist appears Layered and Shiny and Phonolite appears Banded and Foilated. The luster of Schist is shiny while that of Phonolite is greasy to dull. Schist is available in black, blue, brown, dark brown, green, grey, silver colors whereas Phonolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Schist are used in aquariums, writing slates and that of Phonolite are cemetery markers, creating artwork.