Chalcocite

Locality: Mammoth Mine, Mount Gordon, Gunpowder District, Mount Isa - Cloncurry area, Queensland, Australia

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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Photo added: 17th Dec 2007

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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