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Olmiite specimens for sale

4 for sale · $120–$9,500 USD

29 in the gallery

Olmiite is a manganese-containing silicate mineral that forms as orange to pinkish-orange crystals and crusts. It typically grows as irregular aggregates and tabular to prismatic crystals with a vitreous to resinous luster, commonly displaying a warm, vivid hue that makes the mineral visually striking under standard lighting. The mineral’s best-known localities include South Africa, where rich pockets in manganiferous deposits yield well-formed specimens, often associated with other phosphates and secondary minerals.

Formula
CaMn[SiO3(OH)](OH)

Buy Olmiite specimens

View all 4
Olmiite image
Olmiite
Crystal Classics
$9,500
Olmiite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa image
Olmiite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa
Weinrich Minerals
$120
Olmiite from N'Chwaning I Mine, N'Chwaning Mines, Northern Cape, South Africa image
Olmiite from N'Chwaning I Mine, N'Chwaning Mines, Northern Cape, South Africa
DanZ Rockshop
$800
Olmiite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa image
Olmiite from N'Chwaning II Mine, N'Chwaning Mines, Northern Cape, South Africa
Weinrich Minerals
$550

Where Olmiite is found

Top localities

  1. N'Chwaning II Mine20 specimens
  2. N'Chwaning Mines4 specimens
  3. N'Chwaning I Mine3 specimens
  4. N'Chwaning III Mine2 specimens

Guides

All guides
Olmiite
Guide

Olmiite

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.Read guide
Olmiite
Guide

Olmiite from N'Chwaning II Mine, South Africa

Olmiite - orange-pink radial clusters from N'Chwaning II, the type locality manganese silicate prized for color, architecture, and cabinet-worthy specimens.Read guide

About Olmiite

Collectors seek Olmiite for its distinctive color, compact habit, and the context of its formation within oxidized manganese-rich systems. Specimens from notable mines can present sharp, well-formed crystals or attractive crusts that photograph well under display lighting. While not among the rarest minerals, Olmiite offers appeal as a colorful, state-worthy addition to a curated suite of phosphate and oxide minerals, especially for those focusing on secondary mineral parageneses or gemstones with botanical-inspired hues.