Large group of arborescent flattish copper crystals from the White Pine Mine, Ontonagon County, Michigan. The specimen is very three dimensional.
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|Dimensions||22.6 × 5.6 × 1.4 cm|
Undamaged grouping of tan colored calcite crystals projecting prominently from a matrix which is covered with a first generation of smaller white calcite crystals. The top crystal is twinned. An unusual locality for me in that it comes from Gralex Quarry, Mont-sur-Marchienne, Charleroi, Hainaut Province, Belgium.