Tricolor Tourmaline Crystal | Green, Achroite & Pink with Achroite Zone | Paprok Mine, Nuristan, Afghanistan

Three Zones. One of Them Extremely Rare.

This tricolor tourmaline from the Paprok Mine in Nuristan, Afghanistan is exceptional on its color alone — vibrant green, a clean colorless zone, and vivid pink, all within a single natural crystal. But the feature that elevates this piece into genuinely rare territory is the achroite zone.

Achroite is the name given to colorless tourmaline — a variety so uncommon that many serious collectors have never encountered it in person. Tourmaline's color comes from trace elements absorbed during crystal growth, and for that process to pause entirely — producing a perfectly transparent, colorless band — requires an extraordinarily precise set of geochemical conditions. Finding it sandwiched between vibrant green and pink, as it is here, is rarer still.

The crystal is finished with a beautiful, well-formed termination that adds display quality and structural completeness to an already remarkable specimen.

At a Glance

• ✦ Achroite zone — colorless tourmaline, one of the rarest expressions in the species
• ✦ Tricolor zoning — vibrant green → achroite → vivid pink
• ✦ Beautiful termination — well-formed and display-ready
• ✦ Locality: Paprok Mine, Nuristan, Afghanistan
• ✦ Natural, untreated crystal specimen

Pink and green tourmaline from Paprok is already desirable. Add a genuine achroite zone and you have a piece that most collectors will never see twice.

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