Grossular from Merelani Hills, Manyara Region, Tanzania - image 1
Grossular from Merelani Hills, Manyara Region, Tanzania - image 2

Grossular from Merelani Hills, Manyara Region, Tanzania

$600.00

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A glassy partly gemmy green crystal of grossular measuring 1.2 x 1.2 x 0.6 cm in size set perfectly atop matrix with minor graphite. In great condition. This is the variety of the species often called tsavorite.Situated in the Simanjiro District of the Manyara Region in Tanzania, the Merelani Hills lie within the Mozambique Metamorphic Belt, where intense neoproterozoic tectonic activity and hydrothermal alteration produced graphite-bearing calc-silicate metamorphic rocks. Small-scale prospectors discovered the region's rich gem deposits in the late 1960s, quickly establishing it as a world-class source for rare minerals, most notably tanzanite and fine specimens of tsavorite, an emerald-green variety of grossular garnet. Colored vibrant green by trace amounts of vanadium and chromium, tsavorite crystals from this locality are highly prized by collectors and gemologists for their exceptional clarity and brilliant color.

Product details

SpeciesGrossular
SizeThumbnail
Dimensions1.6 x 1.6 x 0.9 cm
Listed on10/15/2026
LocalityTanzania, Manyara Region, Merelani Hills
SKU2354053

Current owner

WM
Weinrich MineralsFeatured
3,402 for sale·9 sold

Learn more

Grossular
Mineral guide
Learn about Grossular
calcium-aluminum garnet with emerald to tsavorite greens and hessonite oranges; dodecahedra/trapezohedra in skarns, prized for color and rarity.
Grossular
Regional guide
Grossular from Merelani Hills, Tanzania
from Merelani Hills, Tanzania - green tsavorite garnet with gem-quality, sharp crystals, bright luster, and Merelani morphology prized by 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.