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