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This auction is open for bidding from:
Jan. 30, 2026
8:00.00 AM
The auction for these specimens close 10 minutes after the time indicated below ~or~ 10 minutes after the last bid is received.
Feb. 5, 2026
6:30.00 PM
The current time is:
Feb. 2, 2026
11:02.46 AM

My Time

Click any picture for enlarged photo(s) and description.
All measuments in Metric Units.
Showing 1 to 16 of 16
Page: 1
Reserve Not Met
Reserve Bid = $49
Size = Small Cabinet
7 x 5.5 x 3 cm cm
Mike Keim Specimen
 
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Scorodite 
 
 
Mina Oujela 
Mapimi 
Durango 
Mexico 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $99
Size = Thumbnail
2.5 x 2.3 x 1.8 cm cm
Mike Keim Specimen
 
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Spinel 
 
 
Mahenge 
Morogoro 
Tanzania 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $79
Size = Small Cabinet
8.5 x 5.5 x 3.5 cm cm
Mike Keim Specimen
 
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Amethyst 
 
 
Las Vigas 
Vera Cruz 
Mexico 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $49
Size = Small Cabinet
7 x 4.5 x 1.5 cm cm
Mike Keim Specimen
 
View Item
Dioptase 
 
 
Christmas Mine 
Gila Co. 
Arizona 
USA 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Met
Reserve Bid = $10
Size = Small Cabinet
7.5 x 6.5 x 5.5 cm cm
Mike Keim Specimen
 
View Item
Rhodochrosite 
 
 
Uchucchacua Mine 
Oyon Prov. 
Peru 
 
 
Current Bid $81.00
High Bidder - rajatiger
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $59
Size = Thumbnail
1.2 x 1 x 1 cm cm
Mike Keim Specimen
 
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Orthoclase 
 
 
Anjanabononoia 
Manapa pegmatite Field 
Betafo 
Madagascar 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $10
Size = Small Miniature
4.3 x 2.5 x 1 cm cm
Mike Keim Specimen
 
View Item
Ludlockite 
 
 
Mina Ojuela 
Mapimi 
Durango 
Mexico 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $10
Size = Thumbnail
1 x 0.5 x 0.3 cm cm
Mike Keim Specimen
 
View Item
Tanzanite 
 
 
Merelani Hills 
Arusha 
Tanzania 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $10
Size = Thumbnail
1.4 x 0.7 x 0.5 cm cm
Mike Keim Specimen
 
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Emerald 
 
 
Nasarawa Egon 
Nasarawa 
Nigeria 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Met
Reserve Bid = $10
Size = Miniature
5 x 3.2 x 1.0 cm cm
Mike Keim Specimen
 
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Neptunite, Benitoite 
 
 
Gem Mine 
San Benito Co. 
California 
USA 
 
Current Bid $10.00
High Bidder - ChickenCityKen
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Met
Reserve Bid = $10
Size = Miniature
5.5 x 4 x 2.4 cm cm
Mike Keim Specimen
 
View Item
'Gitter' Quartz over Feldspar 
 
 
Erongo Region 
Namibia 
 
 
 
Current Bid $15.00
High Bidder - gram1950
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $10
Size = Small Cabinet
9 x 5 x 5 cm cm
Mike Keim Specimen
 
View Item
Thomsonite 
 
 
Staging Area 1 
Clear Creek 
San Benito Co. 
California 
USA 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $99
Size = Small Miniature
3.5 x 0.7 x 0.4 cm cm
Mike Keim Specimen
 
View Item
Diaspore 
 
 
Pinarcik 
Mugla Prov. 
Turkey 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Met
Reserve Bid = $10
Size = Miniature
5.2 x 3 x 2.0 cm cm
Mike Keim Specimen
 
View Item
Fluorite with Calcite 
 
 
Lavrion 
Greece 
 
 
 
Current Bid $10.00
High Bidder - bomzhik
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $49
Size = Thumbnail
3 x 3 x 2.5 cm cm
Mike Keim Specimen
 
View Item
Mimetite with Calcite 
 
 
Santa Eulalia 
Chihuahua 
Mexico 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Reserve Not Met
Reserve Bid = $69
Size = Miniature
5 x 3 x 2.5 cm cm
Mike Keim Specimen
 
View Item
Cerussite with Barite 
 
 
Mibladen 
Morocco 
 
 
 
Current Bid $0.00
High Bidder - None
Close Date: Feb. 5, 2026
Close Time: 06:30.00 PM
Please log in to bid
Showing 1 to 16 of 16
Page: 1
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