.70 carats, 0.8 x 0.5 x 0.2 cm A sharp and unusually fine natrolite crystal for the area around the benitoite mines, where usually natrolite is literally the crap you have to get rid of with acid to expose the benitoite, and so rarely forms as good crystals on its own merits! This collectors-sized stone is actually quite a bit cleaner and gemmier in person. It is of unusually large size for a faceted natrolite from this location or anywhere