Know all about Appinite and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Appinite belongs to Igneous Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Appinite is Porphyritic whereas that of Hornfels is Granular, Platy. Appinite appears Dull, Banded and Foilated and Hornfels appears Dull. The luster of Appinite is subvitreous to dull while that of Hornfels is shiny. Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. The commercial uses of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner and that of Hornfels are cemetery markers, commemorative tablets, creating artwork.