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