Know all about Jasperoid and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Jasperoid belongs to Sedimentary Rocks while Tachylite belongs to Igneous Rocks.Texture of Jasperoid is Earthy whereas that of Tachylite is Vitreous. Jasperoid appears Glassy or Pearly and Tachylite appears Glassy. The luster of Jasperoid is vitreous and pearly while that of Tachylite is resinous. Jasperoid is available in black, brown, colourless, green, grey, pink, white colors whereas Tachylite is available in black, dark 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 Tachylite are cemetery markers, creating artwork.