Know all about Argillite and Evaporite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite and Evaporite belong to Sedimentary Rocks.Texture of Argillite is Clastic, Polished whereas that of Evaporite is Earthy. Argillite appears Rough and Dull and Evaporite appears Glassy, Vesicular and Foilated. The luster of Argillite is waxy and dull while that of Evaporite is subvitreous to dull. Argillite is available in dark grey to black, pink, red, white colors whereas Evaporite is available in colourless, green, grey, silver, white colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Evaporite are used in the manufacture of ceramic powder, used in the preparation of sulfuric acid and silicon diborite.