Know all about Argillite and Andesite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Andesite belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Andesite is Aphanitic to Porphyritic. Argillite appears Rough and Dull and Andesite appears Dull and Soft. The luster of Argillite is waxy and dull while that of Andesite is vitreous. Argillite is available in dark grey to black, pink, red, white colors whereas Andesite is available in bluish - grey, grey, pink, yellow colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Andesite are commemorative tablets, creating artwork.