$250Median
27Sold (12 mo)
$150Last sale
Descloizite from Anarak District, Nain County, Isfahan Province, Iran
Help improve this record
No owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
A cluster of large spiky descloizite crystals, this completely replaced by crystallized willemite. Neat pseudomorph specimen that is complete all around and in great condition. Orange yellow micro crystals of mimetite are scattered throughout.The Chah Milleh Mine, situated in the historic Anarak mining district of Nain County, Isfahan Province, Iran, is a renowned polymetallic deposit with a legacy of artisanal and small-scale extraction targeting base and precious metals. Geologically, the deposit is set within a complex zone of Precambrian to Paleozoic metamorphic basement rocks and younger volcanic-sedimentary sequences that have been heavily intruded, faulted, and subjected to intense hydrothermal activity and secondary weathering. Mineralogically, the mine is famous for producing an array of exceptional secondary lead, zinc, and copper species, yielding good specimen material including vibrant wulfenite, mimetite, and rare alteration assemblages.Pseudomorphs occur when one mineral replaces another while preserving the original crystal shape of the precursor species, a process driven by changing chemical conditions in the surrounding aqueous environment. A striking example from this region is willemite after descloizite, where zinc-silicate solutions permeated the voids of the mine and completely dissolved or replaced earlier crystal clusters of lead-zinc vanadate. This transformation maintains the sharp, distinctive, tree-like or prismatic habit of the original descloizite while coating or converting the structure into sparkling willemite, frequently accompanied by later generations of bright orange mimetite or wulfenite.
Product details
SpeciesDescloiziteWillemiteMimetite
SizeSmall Cabinet
Dimensions7.0 x 7.0 x 4.0 cm
Added on08/11/2026
LocalityIran, Isfahan Province, Anarak District
Current owner
Unknown Owner
- Acquired
- Aug 2026
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Descloizite
lead-zinc vanadate with lustrous rosettes, black-to-brown tones, and warm translucence; top localities Otavi, Namibia and Ojuela, Mexico.Regional guide
Comments