Know all about Coquina and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Coquina belongs to Sedimentary Rocks while Adakite belongs to Igneous Rocks.Texture of Coquina is Clastic whereas that of Adakite is Porphyritic. Coquina appears Layered, Banded, Veined and Shiny and Adakite appears Dull and Soft. The luster of Coquina is dull to vitreous to submetallic while that of Adakite is grainy, pearly and vitreous. Coquina is available in beige, buff, orange colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Coquina are creating artwork and that of Adakite are commemorative tablets, pottery, used in aquariums.