Rare Tanzanite Rough Specimen from Voi, Kenya – 1.87 Carats

I acquired this interesting and uncommon tanzanite rough specimen from a trusted source who said it originates from the rarely referenced Voi region of Kenya. This piece exhibits a rich blend of blue to teal hues, along with noticeable color zoning and directional structure that gives it a slightly different look compared to traditional Merelani (Tanzania) material.

The crystal displays linear banding typical of zoisite, along with visible inclusions and growth characteristics that emphasize its natural formation. Its slightly deeper and more varied blue-green coloration, combined with its unique internal structure, make it a particularly compelling example for collectors.

Material attributed to Kenya is seldom encountered in the market, and while occurrences outside of Tanzania are occasionally noted within the trade, they remain extremely scarce. This specimen presents a unique opportunity for collectors seeking unusual locality material and less typical expressions of tanzanite.

Location: Voi, Kenya (reported)
Weight: 1.87 carats
Measurements: 8mm x 6mm x 3mm
Crystal System: Orthorhombic
Mineral Class: Sorosilicate (Zoisite Group)