Calcite, Chalcopyrite, and Marcasite

Brushy Creek Mine, Greeley, Reynolds Co., Missouri, USA
Small Cabinet, 6.8 x 4.6 x 3.3 cm
Start Time: 09/23/2021 6:30:00 pm (CDT)
End Time: 09/30/2021 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $165
Winning Bidder: Private Bidder

Item Description

A showy and complete Calcite cluster from the well-known Brushy Creek Mine, famous for these sparkling combination specimens. The lustrous, grey Calcite scalenohedrons range up to 2.4 cm, and are instantly recognizable with their preferential coating of sparkly Chalcopyrite and/or Marcasite crystals. The sulfides have good luster, and a light iridescence whose colors cover much of the spectrum. Distinctive and choice, this is classic material for the Brushy Creek mine. It was worked briefly in the mid-1900s and also in a more recent specimen-mining venture by Joe Kielbaso and friends in the late 1980s (from which this piece surely came out). At the time (I was 16) they were phenomenally expensive by the standards of an Ohio teenaged mineral collector, and I recall paying $100 or so for one about this good, even back then (a lot of money at the time for a calcite from a producing locale nearby!). Now, you almost never see them come up for sale again

Bidding History

Bidder Bid Amount Bid Time
Private Bidder $165 09/30/2021 6:23:11 pm (CDT)
Private Bidder $155 09/30/2021 6:23:11 pm (CDT)
Private Bidder $142 09/30/2021 6:19:10 pm (CDT)
blmineral $132 09/30/2021 6:19:10 pm (CDT)
blmineral $127 09/30/2021 4:17:41 pm (CDT)
Private Bidder $117 09/30/2021 4:00:45 pm (CDT)
blmineral $107 09/30/2021 10:23:25 am (CDT)
Private Bidder $100 09/30/2021 10:23:25 am (CDT)
Private Bidder $85 09/30/2021 12:29:16 am (CDT)
Private Bidder $75 09/29/2021 10:23:28 am (CDT)
Private Bidder $70 09/29/2021 10:23:28 am (CDT)
Private Bidder $60 09/29/2021 12:10:39 am (CDT)
Private Bidder $50 09/28/2021 6:40:40 am (CDT)
Private Bidder * $45 09/28/2021 6:40:26 am (CDT)
Private Bidder * $45 09/28/2021 6:40:26 am (CDT)
Private Bidder $40 09/25/2021 11:21:13 am (CDT)
Private Bidder $35 09/25/2021 11:21:13 am (CDT)
Private Bidder $30 09/25/2021 11:21:03 am (CDT)
Private Bidder $25 09/25/2021 11:21:03 am (CDT)
Private Bidder $20 09/25/2021 11:20:54 am (CDT)
Private Bidder $15 09/25/2021 11:20:53 am (CDT)
Private Bidder $10 09/24/2021 7:02:58 am (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.