Know all about Siltstone and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Siltstone belongs to Sedimentary Rocks while Pantellerite belongs to Igneous Rocks.Texture of Siltstone is Clastic whereas that of Pantellerite is Eutaxitic. Siltstone appears Rough and Pantellerite appears Layered and Foliated. The luster of Siltstone is dull while that of Pantellerite is earthy. Siltstone is available in brown, red, reddish brown colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Siltstone are raw material for the manufacture of mortar, soil conditioner and that of Pantellerite are creating artwork.