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