Know all about Trachyte and Coquina properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte belongs to Igneous Rocks while Coquina belongs to Sedimentary Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Coquina is Clastic. Trachyte appears Banded and Coquina appears Layered, Banded, Veined and Shiny. The luster of Trachyte is metallic while that of Coquina is dull to vitreous to submetallic. Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors whereas Coquina is available in beige, buff, orange colors. The commercial uses of Trachyte and Coquina are cemetery markers, creating artwork.