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