Tanzanite

Superb gem Tanzanite crystal with huge areas of pure gem Tanzanite, bright purple/blue from the front and blue when viewed from the side. Termination is perfect and crystal is complete on all sides. Minor chipping on some side edges and an area on one side where another crystal grew alongside. Despite the minor imperfections, this remains a significant crystal and rare to not have been cut. Four sides shown and much better, impactful, in person. Illustrated in the Sept.-Oct. 2009 issue of the Mineralogical Record (Figure 84, page 386). This is an impressive crystal with significant gem value (estimated at at least $10,000). 23.8 grams, 4 x 2 x 1.2 cm.