Know all about Borolanite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Borolanite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Borolanite is Granular whereas that of Siltstone is Clastic. Borolanite appears Banded and Foilated and Siltstone appears Rough. The luster of Borolanite is greasy to dull while that of Siltstone is dull. Borolanite is available in brown, buff, cream, green, grey, pink, white colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Borolanite are cemetery markers and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.