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Luciana Barbosa

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Welcome to!

To register to bid, click the link on the left.

This site offers multiple auctions, to give you a wider range of bidding opportunities.

Some of the auctions include listing from multiple dealers; Others, such as Marin Mineral Auctions and the Barbosa Auctions, are dedicated to listings from those dealers.

The JitterRocks! auction is offered once per week and features minerals and agates, from a variety of dealers.

The Special Auction is used for occasions such as a benefit auction, an auction or series of auctions related to a specific show such as the Tucson Show, or a single dealer's selection of minerals.

The Dealer's Choice Auction is offered once per week.

All of the auctions use an optional proxy bidding system.

Should you encounter a problem using the site, please send an email to

This website, created by John Veevaert, was one of the first of its kind on the the world wide web.

Thank you!,

Luciana Barbosa



Recent and Upcoming Auctions

All times are PDT/PST - Pacific Time Zone (USA)
Click on the hyperlinked link to get to the auction of interest

The current auction on each site is highlighted in green

Barbosa Auction
OpensStarts to Close
9.14 Barbosa Sep 14 10:00 AM Sep 20 6:20 PM
9.21 Barbosa Fresh from Denver Sep 21 10:00 AM Sep 27 6:20 PM
9.28 Barbosa Fresh from Denver II Sep 28 10:00 AM Oct 4 6:20 PM

Marin Minerals Auction
OpensStarts to Close
Marin Minerals Auction #897 Sep 8 8:00 AM Sep 14 6:30 PM
Marin Minerals Auction #898 Sep 15 8:00 AM Sep 21 0:30 AM
Marin Minerals Auction #899 Sep 22 8:00 AM Sep 28 0:30 AM
Marin Minerals Auction #900 Sep 29 8:00 AM Oct 5 6:30 PM
Marin Minerals Auction #901 Oct 6 8:00 AM Oct 12 6:30 PM

Dealer's Choice Auction
OpensStarts to Close
9.13 DC Sep 13 10:00 AM Sep 19 5:00 PM
9.20 DC Sep 20 10:00 AM Sep 26 5:00 PM
9.27 DC Sep 27 10:00 AM Oct 3 5:00 PM
10.4 DC Oct 4 10:00 AM Oct 10 5:00 PM

OpensStarts to Close
Lu Work Space Jan 1 0:00 AM Jan 1 0:00 AM

Special Auction
OpensStarts to Close
test Sep 21 10:00 AM Sep 25 0:00 AM

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