Ettringite from South Africa, Northern Cape, N'Chwaning Mines - image 1
specimen video
Photo by Tom Zhang

Ettringite from South Africa, Northern Cape, N'Chwaning Mines

I acquired this ettringite some number of years ago. From the classic South African locale, this ettringite boasts great aesthetics. The contrast between the yellow ettringite crystals and the black matrix create a very photogenic specimen.

Product details

SpeciesEttringite
SizeThumbnail
Dimensions2.5 x 1.0 x 1.0 cm
Added on02/24/2026
LocalitySouth Africa, Northern Cape, N'Chwaning Mines
Current owner
John Capelli
John Capelli
Boston, Massachusetts, United States
Member since 2026

Learn more

Ettringite
Mineral guide
Learn about Ettringite
lemon-yellow hexagonal prisms; a fragile hydrated sulfate with notable localities like Kalahari and Eifel, Crestmore, prized by collectors.
Ettringite
Regional guide
Ettringite from N'Chwaning Mines
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Locality guide
N'Chwaning Mines
A collector's guide to N'Chwaning Mines, South Africa: its geology, mining history and notable minerals, illustrated with the 472 specimens documented from this locality on EarthWonders.