Know all about Felsite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Felsite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Felsite is Arborescent Patterned, Vitreous whereas that of Siltstone is Clastic. Felsite appears Layered, Banded, Veined and Shiny and Siltstone appears Rough. The luster of Felsite is vitreous while that of Siltstone is dull. Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Felsite are mirror, jewelry and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.