Know all about Chert and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Scoria belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Scoria is Vesicular. Chert appears Glassy or Pearly and Scoria appears Glassy and Vesicular. The luster of Chert is waxy and dull while that of Scoria is subvitreous to dull. Chert is available in black, brown, green, grey, red, white colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.