Sturmanite from N'Chwaning Mines, Northern Cape, South Africa - image 1

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

Help improve this record

No owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

Sign in to contribute
Sturmanite is a very rare, and pretty, calcium iron sulphate borate hydroxide hydrate which was discovered in the manganese mines in Northern Cape, South Africa in the early 1980s, and which has not been found anywhere else in the world to any consequence. This very small miniature specimen is a lovely aggregate of brightly coloured yellow prismatic Sturmanite crystals up to 1.4 cm in length, and in great shape. Associated with this grouping are a few small black Gaudefroyite crystals. Ex David Hardman Collection.

Product details

SpeciesSturmaniteGaudefroyite
SizeMiniature
Dimensions2.8 x 2.1 x 1.2 cm
Added on10/22/2025
LocalitySouth Africa, Northern Cape, N'Chwaning Mines
Current owner
Unknown Owner
Acquired
Feb 2026
Price paid
$500.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

Learn more

Sturmanite
Mineral guide
Learn about Sturmanite
Sign in to contribute
Sturmanite
Regional guide
Sturmanite from N'Chwaning Mines
Sign in to contribute
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.