Know all about Argillite and Metapelite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Metapelite belongs to Metamorphic Rocks.Texture of Argillite is Clastic, Polished whereas that of Metapelite is Foliated. Argillite appears Rough and Dull and Metapelite appears Banded. The luster of Argillite is waxy and dull while that of Metapelite is earthy. Argillite is available in dark grey to black, pink, red, white colors whereas Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Metapelite are commemorative tablets, creating artwork.