Know all about Siltstone and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Siltstone belongs to Sedimentary Rocks while Cataclasite belongs to Metamorphic Rocks.Texture of Siltstone is Clastic whereas that of Cataclasite is Clastic. Siltstone appears Rough and Cataclasite appears Dull and Banded. The luster of Siltstone is dull while that of Cataclasite is vitreous. Siltstone is available in brown, red, reddish brown colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Siltstone are raw material for the manufacture of mortar, soil conditioner and that of Cataclasite are commemorative tablets, creating artwork.