Rare Yellow Tanzanite Crystal – Tanzania – Natural Golden Zoisite Specimen 15.51ctA rare natural yellow tanzanite crystal from Tanzania featuring rich golden yellow coloration with exceptional transparency and sharp geometric crystal structure. This specimen displays excellent luster, strong internal reflections, and naturally formed crystal faces with an especially gemmy appearance. Yellow tanzanite is an extremely uncommon color variety of zoisite and is rarely encountered in well formed natural crystals of this quality. An