Olmiite - image 1

Olmiite

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This mineral was only identified and named in 2007. It had previously been identified as poldervaartite, with which it is almost identical in formula, but olmiite contains more Mn than poldervaartite. This cluster, sandwiched by a manganese and iron-rich matrix, measures a very impressive 6 cm in length by 2.5 cm at its widest point.

Product details

SpeciesOlmiite
SizeSmall Cabinet
Dimensions9.8 x 5.9 x 4.9 cm
Added on10/23/2024
LocalitySouth Africa, Northern Cape, N'Chwaning II Mine

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
—The ArkenstoneNot disclosed

Learn more

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.