Know all about Suevite and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Suevite belongs to Metamorphic Rocks while Argillite belongs to Sedimentary Rocks.Texture of Suevite is Earthy whereas that of Argillite is Clastic, Polished. Suevite appears Banded and Argillite appears Rough and Dull. The luster of Suevite is earthy while that of Argillite is waxy and dull. Suevite is available in black, brown, colourless, green, grey, pink colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo) and that of Argillite are fire resistant, used to manufracture paperweights and bookends.