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