Prehnite Zoisite v. Tanzanite - image 1

Prehnite Zoisite v. Tanzanite

Unknown Owner
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While this locality is world famous for Tanzanite, the Merelani Hills of Tanzania are also host to a variety of other gorgeous and colorful minerals. One of the most uncommon are these fantastic soft blue tabular prehnite crystals, which rank amongst my personal favorite to come from this area. While the yellow/green prehnite is commonly seen here, these blue examples are getting harder and harder to find. One of this size is increasingly rare. Also notable is a tanzanite association, which makes up the entire lower right section of the specimen, as pictured. A very very nice example for this rare style of prehnite.

Product details

SpeciesPrehnite, Zoisite, Tanzanite
SizeSmall Cabinet
Dimensions3.5 x 6.0 x 6.0 cm
Added on09/25/2025
LocalityTanzania, Manyara Region, Merelani Hills

Known provenance

DateCollectorAcquisition price
08/2026Unknown Owner$2,250.00
—Collector’s EdgeNot disclosed

Learn more

Prehnite
Mineral guide
Learn about Prehnite
apple- to mint-green crystals and sculptural botryoidal/rosette forms; a calcium aluminum silicate formed in low-temp hydrothermal environments.
Prehnite
Regional guide
Prehnite from Merelani Hills, Tanzania
Merelani Hills prehnite, Tanzania: glossy translucent crystals on black graphite, lemon-to-mint colors, and a prized locality with context for collectors.