Green Tourmaline in Quartz - Old Stock These crustaceans lived during the

These crustaceans lived during the Pliocene Epoch

Chemical Formula: {Ca2}{Mg5}(Si8O22)(OH)2

sulfur crystals are an absolute must have in your collection

These species are highly sought after for their incredible luster and clarity

Green Tourmaline in Quartz - Old Stock These crustaceans lived during theThere are many, many collectors and mineral enthusiasts who focus solely on the world of tourmaline. With so many different species and locations from all around the world, it is almost a requirement to have some specimen of tourmaline in your collection. Why not start off with a beautiful dark green from Brazil? Size: 4. 3 in. Weight: 19. 1 oz Chemical Formula: XY3Z6B3Si6(O,OH)30(OH,F) Location: Brazil Tourmaline is a boron silicate mineral that is