Tanzanite, Prehnite - image 1
Photo by James Elliott

Tanzanite, Prehnite

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Tanzanite crystal with prehnite crystals, 17 cm, from the Merelani mine near Arusha, Tanzania. James Elliott photo.

Product details

SpeciesTanzanite, Prehnite
SizeLarge Cabinet
Dimensions17.0 cm
Added on02/13/2026
LocalityTanzania, Manyara Region, Merelani Hills
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 455
Current owner
James Zigras

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Tanzanite
Mineral guide
Learn about Tanzanite
vivid blue-to-violet zoisite with strong pleochroism and crystals from Merelani, Tanzania; prized by collectors, rare matrix pieces.
Tanzanite
Regional guide
Tanzanite from Merelani Hills, Tanzania
from Merelani Hills, blue-to-violet zoisite with strong pleochroism, glassy transparency, and prized natural crystal form for collectors.
Locality guide
Merelani Hills
A collector's guide to Merelani Hills, Tanzania: its geology, mining history and notable minerals, illustrated with the 806 specimens documented from this locality on EarthWonders.