Marin Mineral
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Fine Mineral Specimens for Collectors
Mike Keim, P.O. Box 5256 Larkspur, California, 94977   (415) 342 - 1852
Some of our Featured Specimens:
Titanite
Titanite
Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas, Pakistan
Tourmaline
Tourmaline
Otjua Mine, Karibib, Erongo Region, Namibia
Smithsonite
Smithsonite
Berg Aukas Mine, Grootfontein, Namibia
Hambergite, Tourmaline on Quartz
Hambergite, Tourmaline on Quartz
Stak Nala, Skardu Dist., Pakistan
Tourmaline
Tourmaline
Rubaya, North Kivu, Dem. Rep. of Congo
Calcite on Quartz
Calcite on Quartz
Ballyegan Quarry, Castle Island, Co. Kerry, Ireland
Browse the Updates:
Mixed Minerals
July 14, 2026
Mixed Minerals
June 22, 2026
Mixed Minerals
June 3, 2026
Copper Crystals from the Rocklands Mine
May 29, 2026
60% Off Sale!
May 20, 2026
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