Arsenopyrite and Siderite - image 1
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Arsenopyrite and Siderite

Unknown Owner
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Well formed Arsenopyrite crystals disposed on matrix with brown Siderite crystals and Muscovite. The condition is excellent. On matrix of Quartz crystals totally coated by Chlorite and Siderite.

Product details

SpeciesSiderite, Arsenopyrite
SizeSmall Cabinet
Dimensions5.5 x 10.0 cm
Added on06/16/2025
LocalityPortugal, Panasqueira Mines

Known provenance

DateCollectorAcquisition price
08/2026Unknown OwnerNot disclosed
—MChMineralsNot 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.