Know all about Borolanite and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Borolanite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks.Texture of Borolanite is Granular whereas that of Argillite is Clastic, Polished. Borolanite appears Banded and Foilated and Argillite appears Rough and Dull. The luster of Borolanite is greasy to dull while that of Argillite is waxy and dull. Borolanite is available in brown, buff, cream, green, grey, pink, white colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Borolanite are cemetery markers and that of Argillite are fire resistant, used to manufracture paperweights and bookends.