Willemite - image 1

Willemite

$2,500.00

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DanZ Rockshop
DanZ RockshopFeatured
Arvada, Colorado, USA
1,814 for sale·31 sold
A lustrous cluster of green willemite from the famous Tsumeb Mine. The green coloration for the willemite is quite unusual from this Tsumeb. Some crystallization present on the backside as well. The intricate matrix framework is contacted in a couple spots but makes for a neat structure to the specimen.

Product details

Species
WillemiteAbout Willemite →
SizeSmall Cabinet
Dimensions8.0 x 6.0 x 4.0 cm
Listed on09/27/2025
Locality
Namibia, Oshikoto Region, TsumebRegional guide →
SKU27625

Learn more

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.