Ferberite with Siderite - image 1
Ferberite with Siderite - image 2
Ferberite with Siderite - image 3
Ferberite with Siderite - image 4
Ferberite with Siderite - image 5
Ferberite with Siderite - image 6

Ferberite with Siderite

Unknown Owner
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Exceptional single crystal of Ferberite from the famous Panesquira Mine locality in Portugal. The elongated, tabular crystal has smooth table faces, making it doubly-terminated, and the prism faces are smooth to striated. The metallic luster is very good, as is the gunmetal grey color. The Ferberite is decorated with several small clusters of tan-colored Siderites. Ferberite is an end-member of the Wolframite series, and is often referred to as Wolframite. Purchased in 1972 in the heyday of the production, this was from Pala Properties in California. It is a competitive level miniature with exceptional quality.

Product details

SpeciesSiderite, Ferberite
SizeMiniature
Dimensions4.9 x 2.3 x 1.0 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.