Small Cabinet, 5.6 x 4.6 x 3.1 cm
Braden Mine (Teniente Mine), El Teniente, Rancagua, Cachapoal Province, Libertador General Bernardo O'Higgins Region, Chile

A rich piece for the locality with dozens of flattened crystals of the rare copper species Chalcophyllite all over the place. Comes with old label from the Chicago field museum (mislabeled, actually, as "spangolite") 5.6 x 4.6 x 3.1 cm