$8,500Median
2Sold (12 mo)
$4,500Last sale
Calcite (Cobalt-rich)
1
Do you know Alexander Schauss?
Invite them to claim this profile and join EarthWonders.
Help improve this record
No owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Calcite (cobalt-rich), 2.9 cm, from the Mashamba West mine, Kolwezi, Kolwezi mining district, Lualaba, Katanga, Democratic Republic of Congo. Illustrated in Minerals: The Collectors Newspaper (2014). Ex Cal Graeber, ex Ken Roberts collection; Mark Mauthner photo.
Product details
SizeMiniature
Dimensions2.9 cm
Added on02/13/2026
LocalityDR Congo, Lualaba, Mashamba West Mine
Publications
- Mineralogical Record Refined Elegance page 150
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Ken Roberts | Not disclosed |
| — | Cal Graeber | Not disclosed |
Learn more
Mineral guide
Learn about Cobalt
native metal prized for rarity and steel-gray luster, with bold contrasts to erythrite or calcite; Bou Azzer and Schneeberg stand out.
Regional guide
Comments