Adamite (Var: Cuprian Adamite), Adamite (Var: Cobaltoan Adamite), Willemite - image 1
Adamite (Var: Cuprian Adamite), Adamite (Var: Cobaltoan Adamite), Willemite - image 2

Adamite (Var: Cuprian Adamite), Adamite (Var: Cobaltoan Adamite), Willemite

Unknown Owner
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It seems as if a matrix of calcite is overlain by radiating, acicular groups of colorless willemite; but actually the "calcite" is cobaltoan adamite which is very rare for Tsumeb. The cobalt-rich and decidedly pink adamite grades into a second generation of light green cuprian adamite, with a rare pyramidal-looking crystal form. Ex. Willy Israel Collection.

Product details

SizeMiniature
Dimensions3.7 x 2.1 x 1.6 cm
Added on10/23/2024

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

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Willemite
Mineral guide
Learn about Willemite
fluorescent zinc silicate with UV glow; daylight colors range from colorless to pistachio, iconic from Franklin–Sterling Hill and Tsumeb.
Willemite
Regional guide
Willemite from Tsumeb, Namibia
Tsumeb, Namibia: glassy to sparkling crystals in blue-green to champagne hues, botryoidal crusts and hexagonal prisms; classic oxide-zone formation.