Know all about Tachylite and Lamprophyre properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Lamprophyre belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Lamprophyre is Porphyritic. Tachylite appears Glassy and Lamprophyre appears Dull, Banded and Foilated. The luster of Tachylite is resinous while that of Lamprophyre is subvitreous to dull. Tachylite is available in black, dark brown colors whereas Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Tachylite are cemetery markers, creating artwork and that of Lamprophyre are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).