Indicolite Tourmaline with Green Zone from Afghanistan, Nuristan

A well‑formed bicolor Tourmaline crystal from Nuristan, Afghanistan, showing a saturated deep blue Indicolite upper section transitioning into a distinct green Tourmaline zone in the lower half. This color shift is characteristic of Afghan pegmatite pockets where chemistry changes during crystal growth. The crystal exhibits strong vertical striations, sharp prism faces, and natural termination texture typical of the locality. Under strong light, the piece reveals internal translucency with excellent saturation in both color zones. Mounted for display, this specimen offers classic Nuristan aesthetics with an attractive and uncommon blue‑to‑green gradient.

Note - All pics have backlight to show zoning, except pic #5 where I'm holding it.