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