Beudantite

Beudantite specimens for sale

7 for sale · $200–$4,000 USD

29 in the gallery

Beudantite is a hydrated lead iron arsenate sulfate mineral that forms in secondary crusts and veinlets. It commonly presents as earthy to dull lustered aggregates, often appearing as yellow-brown to tan, with a soft, waxy appearance. Crystals are rare, but when present they can display prismatic forms and a vitreous to submetallic sheen in favorable lighting. The mineral solidifies in oxidized zones of lead-rich ore bodies where arsenates and sulfates coexist, producing coatings and nodular masses on fracture surfaces.

Formula
PbFe3(AsO4)(SO4)(OH)6
Rarity
Common
Stability
Moderately Stable
Collector interest
Moderate Interest

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Where Beudantite is found

Top localities

  1. Mohawk mine7 specimens
  2. Tsumeb7 specimens
  3. Tharsis4 specimens
  4. Potosi Mine3 specimens
  5. Santa Rosa Mine2 specimens
  6. Clara Mine1 specimen
  7. Mammoth mine1 specimen
  8. Potosí Mine1 specimen
  9. Southwest Mine1 specimen

About Beudantite

Significant collections of beudantite come from the oxidized zones of several countries, with notable specimens reported from Namibia, the United States, Spain, Brazil, and Mexico. Localities yield specimens that range from botryoidal crusts to more compact, granular aggregates, sometimes accompanying other arsenate minerals such as mimetite or ferritungstite. Collectors appreciate beudantite for its subdued color palette, rustic textures, and the chance of finding well-formed, diagnostic crystals in outcrop or pocket specimens.