A very rare, zoned blue-green aquamarine crystal from the famous pegmatites at Adun-Cholon, Siberia. This gemmy and lustrous crystal is very distinctly color zoned. The termination is slightly complex and a little bit skeletal atop. It is complete-all-around, except only for some contacting on one back side, and pristine with no damage per se. This is old-time, rare and very seldom available material from this historic locale. Weighs 12 grams.