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