Ferberite from Bolivia
It was not too long ago that these crystals were referred
to as Wolframite, which is no longer a species. It was
discredited because none of the samples which were
tested showed the appropriate iron/manganese ratio to
qualify as Wolframite. Wolframite was the intermediate
member of the Hübnerite (Mn+2WO4) - Ferberite
(Fe+2WO4) series.
No. Bltd 1 Fer Lg
FERBERITE on matrix -
$375
Exceptionally lustrous, sharp, large, jet-black crystals
(some twinned) on matrix. There is some minor
damage.
Locality: Tasna mine, Rosario section of Cerro Tasna,
Nor Chichas Province, Potosí Department, Bolivia
Specimen Size: 15 x 10 x 4 cm. (Largest Crystal: 4 cm.)
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To order this specimen click
here
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No. Bltd 2 Fer Lg
FERBERITE on matrix -
$250 (SOLD)
Exceptionally lustrous, sharp, large, jet-black crystals
on matrix. There are no twins on this specimen, and
some minor damage.
Locality: Tasna mine, Rosario section of Cerro Tasna,
Nor Chichas Province, Potosí Department, Bolivia
Specimen Size: 16 x 10.5 x 6 cm. (Largest Crystal: 4
cm.)
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To order this specimen click
here
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No. Bltd 3 Fer Lg
FERBERITE on matrix -
$475 (SOLD)
This is the largest specimen in the lot and has
exceptionally lustrous, sharp, large, jet-black crystals
(some twinned) on matrix.
Locality: Tasna mine, Rosario section of Cerro Tasna,
Nor Chichas Province, Potosí Department, Bolivia
Specimen Size: 18 x 10 x 9 cm. (Largest Crystal: 6 cm.)
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To order this specimen click
here
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No. Bltd 1 Ferrose
FERBERITE "rosette" -
$100 (SOLD)
I know that this piece is not a large "cabient" size
specimen, but it's a sweet little "rosette" or
flower-shaped crystal group of very sharp, highly
lustrous, crystals and I didn't have any other page to
place it.
Locality: Tasna mine, Rosario section of Cerro Tasna,
Nor Chichas Province, Potosí Department, Bolivia
Specimen Size: 6 x 5 x 3 cm. (Largest Crystal: 2 cm.)
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To order this specimen click
here
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