Tanzanite Jewelry Designs-Illustrated Directory

Tanzanite is a rare and relatively soft gem, native to Tanzania; a country in East Africa. Tanzanite is known for its extraordinary pleochroism; exhibiting different colors when viewed under fluorescent or incandescent lighting. When the gem is exposed to fluorescent illumination, blue is more apparent, while incandescent lighting-intrinsically exhibits violet.
Hardness 6.5-7.0