Know all about Phyllite and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Phyllite belongs to Metamorphic Rocks while Claystone belongs to Sedimentary Rocks.Texture of Phyllite is Phyllitic Sheen, Slaty whereas that of Claystone is Clastic. Phyllite appears Crinkled or Wavy and Claystone appears Rough and Dull. The luster of Phyllite is phyllitic while that of Claystone is dull. Phyllite is available in black to grey, light greenish grey colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Phyllite are cemetery markers, commemorative tablets, creating artwork, writing slates and that of Claystone are pottery.