Know all about Siltstone and Benmoreite properties here. All properties of rocks are important as they define the type of rock and its application. Siltstone belongs to Sedimentary Rocks while Benmoreite belongs to Igneous Rocks.Texture of Siltstone is Clastic whereas that of Benmoreite is Glassy, Massive, Porphyritic, Scoriaceous, Trachytic, Vesicular. Siltstone appears Rough and Benmoreite appears Rough and Dull. The luster of Siltstone is dull while that of Benmoreite is earthy. Siltstone is available in brown, red, reddish brown colors whereas Benmoreite is available in black, brown, light to dark grey colors. The commercial uses of Siltstone are raw material for the manufacture of mortar, soil conditioner and that of Benmoreite are commemorative tablets, creating artwork, curling.