Copper -superb spinel twins (Ref: 14.1-407)
Central Mine, Keweenaw Co., Michigan, United States
74mm x 41mm x 34mm
minID: NR6-NFA
Simply fantastic, a very well crystallized Copper with sculptural form much like a tree or cactus. The most prominent twin crystal at the top is 3.1 CM tall and the whole is very esthetic. From the Central mine of Michigan, this classic site produced many excellent spinel twins in its working life. This is well above the quality of "typical" pieces which are now uncommon. A fine USA classic copper that would be desirable from anyplace, a super example of the fames Upper Peninsula copper country. The piece displays great from almost any angle. From: Well-Arranged Molecules
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