Siderite, Arsenopyrite and Chalcopyrite on Ferberite - image 1
Siderite, Arsenopyrite and Chalcopyrite on Ferberite - image 2
Siderite, Arsenopyrite and Chalcopyrite on Ferberite - image 3
Siderite, Arsenopyrite and Chalcopyrite on Ferberite - image 4
Siderite, Arsenopyrite and Chalcopyrite on Ferberite - image 5

Siderite, Arsenopyrite and Chalcopyrite on Ferberite

Unknown Owner
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A good, representative combination piece from the famous Panasqueira Mine in Portugal. The striated, highly lustrous, black Ferberite is at least 6 cm long. The Ferberite crystal is liberally covered on top and on one side by hundreds of shimmery, tan Siderite crystals in hexagonal discs, which add pizzazz to this fine specimen. In some areas, the Siderites stack to look almost floral, but the dominant look is more like perfectly arranged scales. Subhedral, lustrous Arsenopyrite crystals, intermixed with a smaller amount of Chalcopyrite, add to the aesthetics and mineralogical interest.

Product details

SpeciesSiderite, Chalcopyrite, Ferberite, Arsenopyrite
SizeSmall Cabinet
Dimensions9.3 x 8.0 x 4.5 cm
Added on10/23/2024
LocalityPortugal, Panasqueira Mines

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
—The ArkenstoneNot disclosed

Learn more

Siderite
Mineral guide
Learn about Siderite
warm-toned iron carbonate with sharp rhombohedra and occasional gemmy crystals; prized for luster, classic localities Harz, Panasqueira, Dal’negorsk.
Siderite
Regional guide
Siderite from Panasqueira Mines, Portugal
from Panasqueira, Portugal — lustrous tan to cream rhombohedra in rosettes and masses; a world-class, modern classic from a magmatic-hydrothermal vein.