Know all about Tonalite and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Tonalite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Tonalite is Phaneritic whereas that of Chert is Banded, Rough. Tonalite appears Banded and Foilated and Chert appears Glassy or Pearly. The luster of Tonalite is subvitreous to dull while that of Chert is waxy and dull. Tonalite is available in black, brown, light to dark grey, white colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Tonalite are cemetery markers, creating artwork and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.