Zoisite (Var: Tanzanite)
Thumbnail, 2.1 x 1.1 x 0.7 cm
Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
A very gemmy and lustrous tanzanite crystal. This pristine, complete-all-around crystal has a complex, sharp termination. The 3-sided, pleochroism color of this not heat-treated crystal is decidedly different and unusual: the A, frontal face is a very light purple; the B, side face is blue-green; and the C, vertical axis is reddish-brown. Weighs 22.56 carats or 4.5 grams.