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:
Hausmannite
N'Chwanning II Mine, Kuruman, South Africa
Zincolivenite (Cuprian Adamite)
Tsumeb, Namibia
Hambergite
Rangkul, Pamir Mtns., Tajikistan
Copper with Calcite
Keweenaw Peninsula, Michigan, USA
Willemite
Berg Aukas Mine, Grootfontein, Namibia
Malachite on Quartz over Chrysocolla
Zacatecas, Mexico
Browse the Updates:
Mixed Minerals
November 4, 2026
Mixed Minerals
October 30, 2026
Mixed Minerals
October 28, 2026
Mixed Minerals
October 7, 2026
Thumbnails
October 3, 2026
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