||Copper -Flattened spinel twins in branching array
Central Mine, Keweenaw Co.
Michigan, United States
6.8 x 5.1 CM (cabinet)
A very fine copper branch, well crystallized and with great esthetics. This piece still has a few flecks of adhering matrix (which could be removed). The definition and sharpness of the flattened crystals is outstanding. It is hard to tell what the vintage of this is, but this is clearly a very old piece, sold by Shortmanns in the 1950s but perhaps over 50 years older than that. There is a lot of good copper in the market but this is really different and distinctive!