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