Know all about Phyllite and Coquina properties here. All properties of rocks are important as they define the type of rock and its application. Phyllite belongs to Metamorphic Rocks while Coquina belongs to Sedimentary Rocks.Texture of Phyllite is Phyllitic Sheen, Slaty whereas that of Coquina is Clastic. Phyllite appears Crinkled or Wavy and Coquina appears Layered, Banded, Veined and Shiny. The luster of Phyllite is phyllitic while that of Coquina is dull to vitreous to submetallic. Phyllite is available in black to grey, light greenish grey colors whereas Coquina is available in beige, buff, orange colors. The commercial uses of Phyllite and Coquina are cemetery markers, commemorative tablets, creating artwork, writing slates.