Know all about Coquina and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Diabase belongs to Igneous Rocks.Texture of Coquina is Clastic whereas that of Diabase is Aphanitic, Granular. Coquina appears Layered, Banded, Veined and Shiny and Diabase appears Vesicular. The luster of Coquina is dull to vitreous to submetallic while that of Diabase is not available. Coquina is available in beige, buff, orange colors whereas Diabase is available in dark grey to black colors. The commercial uses of Coquina are creating artwork and that of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.