Fine Mineral Specimens for Collectors
Mike Keim, P.O. Box 5256 Larkspur, California, 94977 (415) 342 - 1852
  Some of our Featured Specimens:   

Cuprian Smithsonite from Tsumeb, Namibia [P275]
Cuprian Smithsonite
Tsumeb, Namibia		 Dioptase with Calcite from Christmas Mine, Gila Co., Arizona, USA [AU795]
Dioptase with Calcite
Christmas Mine, Gila Co., Arizona, USA		 Cuprite from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [P253]
Cuprite
Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia		 Prehnite on Andradite from Djouga Diggings, Diakon, Kayes Region, Mali [K455]
Prehnite on Andradite
Djouga Diggings, Diakon, Kayes Region, Mali		 Azurite from Touissit, Morocco [T748]
Azurite
Touissit, Morocco		 Quartz on Hematite from Cleator Moor, Cumberland, England [T869]
Quartz on Hematite
Cleator Moor, Cumberland, England

Mineral Auctions!  

Weekly Mineral Auctions running Fridays to Thursdays

View the current Auctions

 
Browse the Updates:

Mixed Minerals



January 6, 2026
Mixed Minerals



December 20, 2025
50% Off Mineral Sale



December 18, 2025
Mixed Minerals



December 12, 2025
Mixed Minerals



November 19, 2025

Click here for older updates...
Or... Search Our Database:

There are currently 12217 searchable specimens on the website.


Status
Available On hold Sold
now since... before...
 ago
Specimen No.  (all matching)
Name
Species
Locality
Description
Size
Price >= $  (USD)
Price <= $  (USD)
Ex-

      

-OR-

Go to specimen No.:




Join Our Mailing List

Email:





©2010-2018 Marin Mineral