Cobaltoan Smithsonite - image 1
Cobaltoan Smithsonite - image 2
specimen video

Cobaltoan Smithsonite

$600.00

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Crystal Classics
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Tucson, Arizona, USA
7,543 for sale·132 sold
This very large thumbnail Smithsonite from Tsumeb mine is the pale pink cobalt-bearing variety, but its real rarity comes from its crystal form. Comprising a small crystallized aggregate coating sulphide, two main crystals stand out as being very unusual in form - almost globular, but with clear crystal faces. These crystals reach 1.2 cm in diameter and display strikingly curved convex crystal faces. Internally, their pink colour is punctuated with a slightly orange core. The main crystal is intact all round and the second crystal is missing a small part of one edge where it reaches the edge of the specimen. A really usual Smithsonite form. Ex Weyand collection.

Product details

Species
SmithsoniteAbout Smithsonite →
SizeMiniature
Dimensions2.8 x 2.0 x 2.0 cm
Listed on09/03/2025
Locality
Namibia, Oshikoto Region, TsumebRegional guide →
SKUCC53266

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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.