very RAR E- NATIVE COPPER FORM BOLIVIA! Even aside from the locality value, it is an interesting group of dendritic copper crystals on a massive copper matrix. The crystals appear like pine trees rising from the matrix. A slight coating of oxidation to green gives the specimen a nice aesthetic appeal. Another unique specimen from a very hard to find location. Former Sensel, Dr. Eugene collection with old label. 8.9 x 6.9 x 3.0 cm