Willemite ps. Azurite from Namibia, Oshikoto Region, Tsumeb - image 1
Willemite ps. Azurite from Namibia, Oshikoto Region, Tsumeb - image 2

Willemite ps. Azurite from Namibia, Oshikoto Region, Tsumeb

Alan Fertel
Alan Fertel
Leesport, Pa.
6 for sale·8 sold

Willemite ps. Azurite with Mimetite on Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia

3.4 x 1.9 x 1.2 cm


Beneath a coating of white Dolomite, reside three baby blue, translucent Willemite crystals replacing Azurite. There are also some scattered yellow Mimetite crystals on this specimen. The find is labeled as coming from the 29th level and I have found no other literature to state otherwise. A great Pseudomorph from the second oxidation zone at Tsumeb. Specimen is ex. Erika Pohl-Stroher collection. Both photo credit and specimen from The Arkenstone, iRocks.

Product details

Species
Willemite, Azurite, DolomiteAbout Willemite →
SizeMiniature
Dimensions3.4 x 1.9 x 1.2 cm
Added on10/17/2025
Locality
Namibia, Oshikoto Region, TsumebRegional guide →

Known provenance

DateCollectorAcquisition price
—Erika Pohl-StroherNot disclosed

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.