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