Olmiite, Calcite - image 1
Photo by Jeffrey A. Scovil

Olmiite, Calcite

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Olmiite on calcite, 4.5 cm, from the N’Chwaning II mine, Kalahari Manganese Field, near Kuruman, Northern Cape Province, South Africa. Photo by Jeff Scovil.

Product details

SpeciesOlmiite, Calcite
SizeMiniature
Dimensions4.5 cm
Added on02/13/2026
LocalitySouth Africa, Northern Cape, N'Chwaning II Mine
Publications
  • Mineralogical Record Mineral Collections In Arizona page 187
Current owner
Wendell Wilson

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Olmiite
Mineral guide
Learn about Olmiite
from South Africa’s Kalahari Manganese Field is a manganese silicate prized for warm apricot hues, ember glow, and radial clusters on dark matrix.
Olmiite
Regional guide
Olmiite from N'Chwaning II Mine, South Africa
orange-pink radial clusters from N'Chwaning II, the type locality manganese silicate prized for color, architecture, and cabinet-worthy specimens.
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…