Willemite - image 1

Willemite

$400.00

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Crystal Classics
Crystal ClassicsFeatured
Tucson, Arizona, USA
7,543 for sale·132 sold
Tsumeb mine in Namibia has produced some of the world's finest Willemite specimen. Already a very rare zinc silicate species, Willemite from Tsumeb occurs in a very different crystal form to most other world occurrences, and crucially has good colour too. This admittedly small Willemite specimen from Tsumeb is, in my eye, exceptionally well crystallized, presenting a fine greasy lustre like seen in some of the botryoidal specimens from there, and yet it is made of of a layer of well-defined crystals. Not only this, but that colour is so appealing, a somewhat greener shade of blue than is usual for Tsumeb. An extremely choice Tsumeb miniature.

Product details

Species
WillemiteAbout Willemite →
SizeMiniature
Dimensions4.2 x 2.8 x 2.5 cm
Listed on10/22/2025
Locality
Namibia, Oshikoto Region, TsumebRegional guide →
SKUCC46050

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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 willemite is the zinc silicate for collectors who usually think of willemite as a fluorescent-mineral classic from Franklin, New Jersey, and then discover that Tsumeb rewrote the aesthetic rules. Here, Zn2SiO4 appears not as massive ore but as glassy to sparkling crystal groups, botryoidal crusts, radiating sprays, delicate acicular “lawns,” and rare individual hexagonal prisms. The colors are equally un-Franklin-like: white, gray, yellow, green, blue-green, turquoise-blue, pale blue, reddish brown, and the much-loved champagne to honey tones. The best pieces have a crisp, jewel-like presence in daylight, often on white calcite or dolomite, with the color contrast that Tsumeb collectors prize.