Cobaltoan Smithsonite - image 1
Cobaltoan Smithsonite - image 2
Cobaltoan Smithsonite - image 3

Cobaltoan Smithsonite

Unknown Owner
John Magnasco

Product details

Species
SmithsoniteAbout Smithsonite →
SizeMiniature
Dimensions3.2 x 2.8 x 2.2 cm
Added on09/13/2025
Locality
Namibia, Oshikoto Region, TsumebRegional guide →

Known provenance

DateCollectorAcquisition price
01/2026Unknown OwnerNot disclosed
—DanZ RockshopNot disclosed

Learn more

Smithsonite
Mineral guide
Learn about Smithsonite
ZnCO3 with botryoidal and crystalline forms, silky to vitreous luster, pastel hues from cobalt to yellow; localities boost collecting appeal.
Smithsonite
Regional guide
Smithsonite from Tsumeb, Namibia
is one of the defining collector minerals of Tsumeb: not merely because it is common there, but because Tsumeb turns a usually massive or botryoidal zinc carbonate into a locality signature mineral with uncommon crystal variety, depth of color, and association. Tsumeb smithsonite spans the familiar apple-greens and blue-greens of copper-bearing material, soft pink to violet-pink cobaltoan and manganoan-looking rhombs, yellow-brown and chocolate-brown iron-rich crystals, pale grey to white crusts, colorless to translucent rhombs, and rare red-pink material from the deeper oxidized workings. The best specimens combine sharp rhombohedral or scalenohedral crystals with the sculptural mineralogical theater for which Tsumeb is famous: galena-rich sulfide matrix, sugary dolomite, black tennantite and pyrite ore, cerussite, mimetite, malachite, wulfenite, duftite, dioptase, and willemite.