Tanzanite Crystal

Ex. Steve Ulatowski

This significant and extraordinary tanzanite crystal from the Merelani Hills of Tanzania is highly pleochroic, exhibiting seven different colors depending upon its orientation and light source: blue, purple, red, pink, green, yellow, and orange. The piece's crystallization is exquisitely fine, with the sharpest character and a highly mirrored surface luster.

The center of the crystal has the deeply saturated blue typical of the finest tanzanites, framed by a mint green color on both sides. The green color zones are symmetric and extend from the termination to the base of the crystal. The base itself displays a goldenrod yellow color, while the blue central area contains a strong red flash. The piece has not been artificially heated, evidenced by the dominant red tint visible when looking down its c-axis. It has a symmetric and well-formed termination and is without damage or repair. A truly first-class tanzanite specimen.

REFERENCES:

https://www.mindat.org/min-3885.html