Know all about Coquina and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Coquina and Diatomite belong to Sedimentary Rocks.Texture of Coquina is Clastic whereas that of Diatomite is Clastic or Non-Clastic. Coquina appears Layered, Banded, Veined and Shiny and Diatomite appears Soft. The luster of Coquina is dull to vitreous to submetallic while that of Diatomite is dull. Coquina is available in beige, buff, orange colors whereas Diatomite is available in grey, white, yellow colors. The commercial uses of Coquina are creating artwork and that of Diatomite are alumina refineries, animal feed filler, as a feed additive for livestock, creating artwork, drawing on blackboards, fire resistant, gymnasts, athletes and mountain climbers use for grip, in aquifers, soil conditioner, to ignite fire, used as a filter medium, used as an insecticide, whiting material in toothpaste, paint and paper.