Know all about Coquina and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks.Texture of Coquina is Clastic whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Coquina appears Layered, Banded, Veined and Shiny and Variolite appears Dull and Soft. The luster of Coquina is dull to vitreous to submetallic while that of Variolite is not available. Coquina is available in beige, buff, orange colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Coquina are creating artwork and that of Variolite are cemetery markers, creating artwork.