Collection of Mark Fenoglio

334 specimens published from MyMinerals 1.0

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Arsenian Copper

No. 0237

Keweenaw Penin., Michigan

Dendritic dull copper-red mass tarnished to black on some edges coated by semi-crystalline white calcitic mass

Purchased in February 2003

ex. Roland Bounds

3.4 x 3.1 x 0.9 cm (miniature)