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