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Chalcocite


Chalcocite : Cu2S

Photo Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
3.6 x 2.7 x 2.7 cm. This specimen is a competition-level, complete-all-around STUNNING miniature, with a cluster of three intergrown crystals to 3 cm long, perched on a small knob of matrix. It is STUNNING, visually, both for the lustre and the sharp geometry of the piece. Complex beveled terminations throw off reflections in every direction. There is no damage except a teeny contact atop and a few contacts or breaks on the bottom peripheral crystals, while the major crystals are not only upright, but astoundingly 3-dimensional (more so in person!). This is a MAJOR miniature for the species, to my eye better in absolute quality than some Bristol or Wisconsin locality specimens I have seen over the years.


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