- Bornite on Calcite
- Miniature, 5.3 x 4.9 x 3.9 cm
- Dzhezkazgan, Karagandy Prov., Kazakhstan
Perched aesthetically on a cluster of lustrous and translucent white calcite rhombohedrons, to 1 cm in length, are a few rounded, copper-colored, bornite crystals, to 1.5 cm in length. They exhibit superb iridescence. Great contrast of form and color! This is from old finds in the 1990s.