Dims: 1.7 x 1.4 x 0.7" (4,2 x 3.6 x 1.8 cm)
Wt: 0.5 oz. (13 g)
Ray Mine, Pinal County, Arizona, U.S.A.
This hand specimen consists of an arborescent native Copper formation. It is in good condition, showing subtle damage if any, and contains warped Copper crystals that do not exceed 0.2-0.3" (5-8 mm) in length. Even though they are warped, one can see evidence of Spinel-law twinning in some spots. Each surface has a dull, pale green oxide coating surrounding it. There is no base or host rock present.