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