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