Northwestern Mine, Keweenaw Co., Michigan

4.3 x 3.1 x 1.8 cm
1.7 x 1.2 x 0.7 in

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Ex. Seaman Mineral Museum

Well formed crystals primarily of spinel twin habit including one thin, elongated crystal with smaller crystals radiating outwards epitaxially.

Condition: Excellent

Flaws: Nothing Appreciable

This mineral is also found in the following galleries: Minerals From Michigan | Copper | Minerals Priced Between 100 and 199 Dollars