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

Olmiite, Xonotlite

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Olmiite on xonotlite, 10.3 cm, from the N’Chwaning II mine near Kuruman, Northern Cape Province, South Africa. Jeff Scovil photo.

Product details

SpeciesOlmiite, Xonotlite
SizeCabinet
Dimensions10.3 cm
Added on02/13/2026
LocalitySouth Africa, Northern Cape, N'Chwaning II Mine
Publications
  • Mineralogical Record Mineral Collections In California page 59
Current owner
California Academy of Sciences

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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…