Know all about Coquina and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Syenite belongs to Igneous Rocks.Texture of Coquina is Clastic whereas that of Syenite is Earthy. Coquina appears Layered, Banded, Veined and Shiny and Syenite appears Banded and Foilated. The luster of Coquina is dull to vitreous to submetallic while that of Syenite is subvitreous to dull. Coquina is available in beige, buff, orange colors whereas Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Coquina are creating artwork and that of Syenite are cemetery markers, creating artwork.