Spessartine
specimen number:
9711744
location:
Nani Hill, Loliondo, Ngorongoro, Arusha, Tanzania
description: Nani Hill in the Loliondo division of the Ngorongoro District in Arusha, Tanzania, is not a formally scheduled commercial mine with fixed historical opening and closing dates, but rather a localized mineral occurrence that gained prominent attention during regional gem-prospecting rushes. Geologically, it is situated within the Mozambique Belt terrain of high-grade Proterozoic metamorphic rocks, characterized by a large quartz mass or vein system intersecting weathered schist and mica-rich host rocks. The site is internationally renowned among mineralogists for its manganese-rich metamorphic assemblage, which uniquely yields vivid orange spessartine garnets and rare orange kyanite associated with hematite and manganese oxides.
A grouping of orange red lustrous translucent spessartine crystals with very little attached matrix. In good condition all around.
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Related by Mineral (Spessartine):
Spessartine — Tanzania
Origin: Nani Hill, Loliondo, Ngorongoro, Arusha, Tanzania
Number: (9711743)
Size: 4.0 x 4.0 x 3.3 cm (miniature)
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Size: 2.7 x 1.5 x 0.9 cm (thumbnail)
Spessartine — California
Origin: Little Three Mine, Ramona, San Diego Co., California, USA
Number: (8311223)
Size: 1.6 x 1.2 x 1.2 cm (thumbnail)

