Fluorite (''phantom'' color zoned crystals) on Quartz

La Barre Mine, Saint-Jacques-d'Ambur, Pontgibaud, Puy-de-Dome, Auvergne-Rhone-Alpes, France
Ex. Paul Zerfass
Small Cabinet, 8.9 x 7.2 x 4.2 cm
Start Time: 12/07/2023 6:45:00 pm (CST)
End Time: 12/14/2023 6:45:00 pm (CST)
Auction Closed
Winning Bid: $760

Item Description

A beautiful display specimen from the La Barre Mine in France. Mindat.org refers to this locality as an ancient Fluorite mine, which operated, "from 1918 until 1948, produced 80 000 tons of ore". This is piece features many sharp, very lustrous, GEMMY< well-formed, textbook cubes with gorgeous blue color in the center and wonderful colorless "phantoms" on the edges of the crystals sitting on sparkling white Quartz matrix. There are a few spots that show golde/brown hues internally, due to what could be some kind of iron inclusions underneath the Fluorites. The largest crystal measures 1.3 cm on edge. Most of the crystals are in superb condition, but there are some tiny imperfections in sptos. The crystals show a bit of a color change, where they are a lighter purplish-blue color in halogen lighting, and a more saturated blue in sunlight. If you look at the underside of the specimen, you'll see that the Fluorites grew on a previous generation of Fluorite with more saturated green purple hues!
From the collection of the long time, beloved, well-known French field collector, Paul Zerfass (Collection #72). Zerfass built this worldwide collection over nearly 50 years, many of which were personally collected. A biography featuring specimens from his collection (along with his face on the cover) is in the May - June 2017 issue of French mineral magazine, Le Règne Minéral. We have a .pdf copy of the article for anybody interested in reading it (though it's mostly in French). Just drop us a line and know that you'd like to have a copy.

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Bidding History

Bid Amount Bid Time
$760 12/14/2023 6:40:38 pm (CST)
$735 12/14/2023 6:40:27 pm (CST)
$710 12/14/2023 6:40:27 pm (CST)
$685 12/14/2023 6:40:05 pm (CST)
$660 12/14/2023 6:40:05 pm (CST)
$635 12/10/2023 11:58:18 pm (CST)
$610 12/09/2023 10:29:12 pm (CST)
$590 12/09/2023 10:29:11 pm (CST)
$585 12/09/2023 4:30:07 pm (CST)
$560 12/09/2023 4:30:07 pm (CST)
$535 12/08/2023 10:45:31 am (CST)
$510 12/08/2023 10:45:31 am (CST)
$420 12/08/2023 10:45:12 am (CST)
$410 12/08/2023 10:45:12 am (CST)
$320 12/08/2023 10:44:43 am (CST)
$310 12/08/2023 10:44:43 am (CST)
$265 12/08/2023 10:44:29 am (CST)
$255 12/08/2023 10:44:28 am (CST)
$145 12/08/2023 1:54:44 am (CST)
$135 12/08/2023 1:54:43 am (CST)
$110 12/07/2023 11:43:20 pm (CST)
$100 12/07/2023 11:43:20 pm (CST)
$10 12/07/2023 9:28:55 pm (CST)