Know all about Jasperoid and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Jasperoid belongs to Sedimentary Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Jasperoid is Earthy whereas that of Hornfels is Granular, Platy. Jasperoid appears Glassy or Pearly and Hornfels appears Dull. The luster of Jasperoid is vitreous and pearly while that of Hornfels is shiny. Jasperoid is available in black, brown, colourless, green, grey, pink, white colors whereas Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Hornfels are cemetery markers, commemorative tablets, creating artwork.