Cassiterite, Schorl, Ilmenite - image 1

Cassiterite, Schorl, Ilmenite

$1,750.00

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Collector’s EdgeFeatured
753 for sale·296 sold
A fantastic example of cassiterite from the Erongo Mountains of Namibia. These cassiterites, discovered in 2022, set the new standard for the species in Erongo, and created a big wave in the mineral community. Lustrous and complex sharp crystals atop a bed of ilmenite (also rare for the region) make for a fascinating and aesthetic combo. This specimen also features a sharp schorl crystal. This find produced a limited number of specimens, with none seen since – making this a rare opportunity to own a future Erongo classic. Photo by Invenio Fine Minerals

Product details

Species
Cassiterite, Ilmenite, SchorlAbout Cassiterite →
SizeSmall Cabinet
Dimensions6.0 x 5.0 x 8.0 cm
Listed on09/25/2025
Locality
Namibia, Erongo Region, Erongo MountainsRegional guide →
SKU74967

Learn more

Cassiterite
Mineral guide
Learn about Cassiterite
mirror-like luster and dense, prismatic crystals; localities Panasqueira, Xuebaoding, Viloco; value hinges on finish, size, and matrix.
Cassiterite
Regional guide
Cassiterite from Erongo Mountains, Namibia
from the Erongo Mountains is a locality-specialist’s cassiterite: not a common commodity specimen, but a distinctive Namibian tin oxide that bridges two worlds. One is the old Erongo tin-field world of cassiterite in coarse, zoned pegmatites and greisenized veins; the other is the modern Erongo specimen world of miarolitic pockets, black schorl, smoky quartz, ilmenite, feldspar, fluorite and aquamarine. The best pieces are not large ore chunks but sharp, lustrous, complexly twinned black crystals whose mirror faces catch light almost like polished obsidian.