Know all about Chert and Greenschist properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Greenschist belongs to Metamorphic Rocks.Texture of Chert is Banded, Rough whereas that of Greenschist is Foliated, Platy. Chert appears Glassy or Pearly and Greenschist appears Layered and Shiny. The luster of Chert is waxy and dull while that of Greenschist is shiny. Chert is available in black, brown, green, grey, red, white colors whereas Greenschist is available in dark greenish - grey, green 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 Greenschist are blackboards, manufacture of tools, writing slates.