Hausmannite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa - image 1
Hausmannite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa - image 2

Hausmannite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa

$250.00

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Lustrous black sharp crystals of hausmannite to 0.5 cm in size in a cluster with little attached matrix on the bottom side. In excellent condition and a choice thumbnail for the species. The N'Chwaning Mines, situated in the Kalahari Manganese Field of the Northern Cape Province of South Africa, comprise an active underground mining complex operated by Assmang. The deposit was discovered in 1940, and operations were established in phases with the commissioning of N'Chwaning 1 in 1972, N'Chwaning 2 in 1981, and N'Chwaning 3 in 2001, remaining fully active today. Geologically, the deposit is hosted within the Palaeoproterozoic Hotazel Formation of the Transvaal Supergroup, consisting of sedimentary banded iron formations interbedded with massive manganese ore layers. The complex structures feature intense faulting and post-depositional hydrothermal alteration, which have localized rare mineral assemblages including exceptional rhodochrosite, manganite, and gem-quality sugilite.

Product details

SpeciesHausmannite
SizeMiniature
Dimensions3.0 x 2.5 x 0.8 cm
Listed on10/21/2026
LocalitySouth Africa, Northern Cape, N'Chwaning II Mine
SKU2063409

Current owner

WM
Weinrich MineralsFeatured
3,518 for sale·9 sold

Learn more

Hausmannite
Mineral guide
Learn about Hausmannite
(Mn3O4): jet-black, metallic luster with sharp pseudo-octahedra. From South Africa’s Kalahari Manganese Field, prized for dramatic contrast.
Hausmannite
Regional guide
Hausmannite from N'Chwaning II Mine, South Africa
from N'Chwaning II Mine, South Africa - jet-black, high-luster dipyramidal crystals, often pagoda-like, prized by collectors for locality and form.
Locality guide
N'Chwaning II Mine
N'Chwaning II Mine, South Africa — premier manganese locality yielding rare cabinet-scale minerals (hausmannite, rhodochrosite, ettringite) prized for color an…