Fuorite with Ferberite, Siderite and Arsenopyrite - image 1
Fuorite with Ferberite, Siderite and Arsenopyrite - image 2
Fuorite with Ferberite, Siderite and Arsenopyrite - image 3
Fuorite with Ferberite, Siderite and Arsenopyrite - image 4
Fuorite with Ferberite, Siderite and Arsenopyrite - image 5
specimen video

Fuorite with Ferberite, Siderite and Arsenopyrite

Unknown Owner
Cabinet size specimen from the world famous Panasqueira mines. The Fluorites from Panasqueira are usually small crystals, not larger than 1 cm. This piece is one of the largest Fluorites I have ever seen from Panasqueira in 35 years. It shows an exceptional color zoning and it is very bright. It is accompanied by Ferberite crystals, Siderite and Arsenopyrite. From a 2021 find in the 1st level of the mine. Only three of these larger specimens were recovered by the miners. A nice Panasqueira Fluorite suitable for both the most demanding Panasqueira and Fluorite collectors.

Product details

Species
Ferberite, Siderite, ArsenopyriteAbout Ferberite →
SizeCabinet
Dimensions8.0 x 9.0 x 11.0 cm
Added on06/16/2025
Locality
Portugal, Panasqueira MinesRegional guide →

Known provenance

DateCollectorAcquisition price
06/2025Unknown OwnerNot disclosed
—MChMineralsNot disclosed

Learn more

Ferberite
Mineral guide
Learn about Ferberite
iron-rich wolframite with stout blade-like prisms and deep black luster; forms in hydrothermal tin-tungsten deposits; prized on quartz or fluorite.
Ferberite
Regional guide
Ferberite from Panasqueira Mines, Portugal
Panasqueira ferberite is the European classic against which most crystallized ferberite is judged. The best specimens are not merely black ore crystals: they are sculptural, high-luster, metallic to submetallic blades and thick tabular prisms, commonly striated, sometimes doubly terminated, and often set in the distinctive Panasqueira palette of white quartz, pearly muscovite, brown siderite, silvery arsenopyrite, purple to green fluorapatite, cassiterite, pyrite, chalcopyrite, calcite, and dolomite. In a cabinet, a good piece reads immediately as Panasqueira—black, heavy, sharp, and architectural, with the mine’s characteristic quartz-vein openness preserved in miniature.