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Walter R. Kellogg


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Mineral Specimen #6617    Gerhardtite

Caledonia Mine, Greenland, Ontonagon County, Michigan, USA

4.4 x 3.5 x 2 cm
1.7 x 1.4 x 0.8 in



The Gerhardite is the blue colored material along with an unidentified green colored material.

Condition: Good

Flaws: Nothing Appreciable

This mineral is also found in the following galleries: Minerals From Michigan | Carbonates | Rare Minerals | Minerals Priced Between 50 and 99 Dollars