Announcements
- BILLING CYCLE
BILLING CYCLE (every 2 weeks): Click for details. - BID INCREMENT & LIVE ENDING NOTES
Click here for clarification on Live Endings and Bid increments.
- ID & PASSWORD HELP
Notes about USER ID and new password settings - if you have trouble logging in, or need help troubleshooting, please click here.
Bidding Rules & Regs
Live-Ending Auction & Proxy Bid Rules, click here for more info.Sizes & Measurements
Click here for more info.
Bournonite 
Back to CONSIGMENT and COLLECTION AUCTIONS - Ends July 29th
Machacamarca Mine, near Colavi, Dept. Potosi, Bolivia
- Starting Time:7/22/2010 06:45:00 PM(CDT)
- Ending Time:7/29/2010 06:45:00 PM(CDT)
Time Left:Auction Is Closed
- Size:SMALL CABINET
- Size Description:5.8 x 5.3 x 5.0 cm
Description:There was a find of this relatively rare copper sulfosalt last year at Machacamarca, and this piece is definitely one of the more attractive specimens to come out in this size range. This piece hosts a lovely, fairly thick, sharp, silvery-grey color, tabular crystal of Bournonite measuring 3.1 cm on micro grey Quartz matrix. This is an attractive specimen (especially for this mine), and displays very well. There was only one pocket from this mine that produced these larger tabular Bournonite crystals on matrix, so don't miss out. From what I have been told, this mine is not producing these specimens at the moment, and the last time the Bournonites stopped coming out, it took three years for the miners to find more.
