Fluorite - penetration twinned (fluorescent)

West Cross Cut, Rogerley Mine, Stanhope, County Durham, England, UK
Miniature, 3.2 x 2.5 x 2.3 cm
Start Time: 05/12/2022 7:00:00 pm (CDT)
End Time: 05/19/2022 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $205
Winning Bidder: Private Bidder

Item Description

Penetration twins of Fluorite are perhaps the most attractive of the Fluorite twin habits for their dynamic, yet simple, form, and the Rogerley Mine is famous for producing these. Deep green and gemmy, this small miniature is classic for this locality. The larger crystal is 2 cm on longest side. Classic, intense bluish-purple fluorescence. In fact, it was English Fluorites that lent their name to the term 'fluorescence', that's how strongly they react to UV. Mining conditions can be difficult there, between water flow and hard country rock, so it is not surprising when a specimen comes out with some dings, like this piece has. Nonetheless, it is a good, representative specimen for both the habit and the locality. Formerly in the extensive collection of W & A Cook. #12701 !

Bidding History

Bidder Bid Amount Bid Time
Private Bidder $205 05/19/2022 6:19:14 pm (CDT)
Private Bidder * $195 05/19/2022 6:18:28 pm (CDT)
Private Bidder * $195 05/19/2022 6:18:28 pm (CDT)
Private Bidder $185 05/19/2022 6:15:33 pm (CDT)
Private Bidder $175 05/19/2022 6:15:33 pm (CDT)
Private Bidder $165 05/19/2022 6:14:22 pm (CDT)
Private Bidder $155 05/19/2022 6:10:54 pm (CDT)
Private Bidder $145 05/19/2022 6:01:45 pm (CDT)
Private Bidder $135 05/15/2022 7:20:32 pm (CDT)
Private Bidder $125 05/14/2022 10:50:50 am (CDT)
Private Bidder $115 05/14/2022 10:42:52 am (CDT)
Private Bidder $110 05/14/2022 10:42:52 am (CDT)
Private Bidder $100 05/14/2022 10:42:43 am (CDT)
Private Bidder $90 05/14/2022 10:42:42 am (CDT)
Private Bidder $80 05/14/2022 10:42:29 am (CDT)
Private Bidder $70 05/14/2022 10:42:29 am (CDT)
Private Bidder $60 05/14/2022 10:42:23 am (CDT)
Private Bidder $50 05/14/2022 10:42:23 am (CDT)
Private Bidder $45 05/14/2022 10:42:16 am (CDT)
Private Bidder $40 05/14/2022 10:42:16 am (CDT)
Private Bidder $35 05/14/2022 10:35:27 am (CDT)
Private Bidder $30 05/14/2022 10:31:21 am (CDT)
Private Bidder $25 05/14/2022 2:04:14 am (CDT)
Private Bidder $20 05/13/2022 6:50:09 pm (CDT)
Private Bidder $15 05/13/2022 4:37:41 pm (CDT)
Private Bidder $10 05/13/2022 12:56:21 pm (CDT)
* Proxy Bid Battle: In the event of two customers inputting matching proxy bids, the leading bid goes to the earliest of the two proxy bids. Tie winners are shown in bold.