Copper - Old Indiana Mine, Michigan
Measures: 4 x 4 x 3.5 cm.
This excellent Copper on matrix is an exceptional example of the locality, featuring an amazing palette of copper hues against the oxidized green trace copper in the matrix. The crystals are sharply formed and transition most fascinatingly from tetrehexehedrons to spinel law twins toward the bottom. Overall an extraordinary piece for any collection. This specimen comes with a print quality verson of the photo above. Be sure to watch the video as well!