Ferberite with Siderite
Miniature, 4.9 x 2.3 x 1.0 cm
Panasqueira Mine, Covilha, Castelo Branco District, Portugal
Ex. Kay Robertson
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.
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