NRK20 Copper ps. Aragonite (MATRIX!)
Corocoro, Pacajes Province, La Paz Department, Bolivia
5.1x 5.2x 1.9 cm
$385
A very rare matrix specimen of a copper after aragonite pseudomorph. Usually these are found in dry mud, which simply crumbles when the specimens are collected. In the case of this specimen, the matrix is a sheet of copper, so it was tough enough to stay attached to the pseudomorph. Very usual material, and no it has not been faked. I checked carefully, and in addition to the gray sediment, there is continuous patinated copper from the crystal to the matrix.
