Know all about Slate and Coquina properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Coquina belongs to Sedimentary Rocks.Texture of Slate is Foliated whereas that of Coquina is Clastic. Slate appears Dull and Coquina appears Layered, Banded, Veined and Shiny. The luster of Slate is dull while that of Coquina is dull to vitreous to submetallic. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Coquina is available in beige, buff, orange colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Coquina are creating artwork.