Arsenopyrite, Marcasite, Zinnwaldite - image 1

Arsenopyrite, Marcasite, Zinnwaldite

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Barratt L. Phillips
0 for sale
Arsenopyrite with marcasite and zinnwaldite, 12.5 cm, from Panasqueira, Portugal. Photo by Jeff Scovil.

Product details

Species
Arsenopyrite, Marcasite, ZinnwalditeAbout Arsenopyrite →
SizeCabinet
Dimensions12.5 cm
Added on02/13/2026
Locality
Portugal, Panasqueira MinesRegional guide →
Publications
  • Mineralogical Record Mineral Collections In California page 226

Learn more

Arsenopyrite
Mineral guide
Learn about Arsenopyrite
steel-gray, mirror-bright prismatic crystals; prized for sculptural form and heft, with top localities (Panasqueira, Dalnegorsk, Yaogangxian) in…
Arsenopyrite
Regional guide
Arsenopyrite from Panasqueira Mines, Portugal
Panasqueira is one of the great European mineral-specimen localities, and arsenopyrite is one of the minerals that gives the mine its unmistakable “look.” The best pieces show bright steel-silver to pale brassy, sharply striated crystals in sculptural clusters, often with the crisp, bladed, spear-like or cock’s-comb habit that makes Panasqueira arsenopyrite recognizable at a glance. Unlike many arsenopyrite localities that yield mostly massive ore or small embedded crystals, Panasqueira has produced free-standing clusters and dramatic combinations where metallic arsenopyrite is staged against milky to clear quartz, books of muscovite, pale to greenish fluorapatite, siderite, pyrite, cassiterite, chalcopyrite, wolframite-group minerals, and topaz.