On the anomalous shapes of native copper crystals from the Michigan Copper Country

Boulliard, Jean-Claude; Aléon, Jérôme; Gaillou, Eloïse

doi:https://doi.org/10.5194/ejm-33-9-2021

Articles | Volume 33, issue 1

https://doi.org/10.5194/ejm-33-9-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/ejm-33-9-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 33, issue 1

Research article

|

29 Jan 2021

Research article |

| 29 Jan 2021

On the anomalous shapes of native copper crystals from the Michigan Copper Country

Jean-Claude Boulliard, Jérôme Aléon, and Eloïse Gaillou

Data sets

On the anomalous shapes of native copper crystals from the Michigan Copper Country Jean-Claude Boulliard, Jérôme Aléon, and Eloïse Gaillou https://doi.org/10.5281/zenodo.4462260

Short summary

The anomalous shapes of Michigan copper crystals are well known by mineral collectors and are curated in museums worldwide. Still, their particular habits remain enigmatic. These anomalous crystals do not seem to follow the standard crystal shape theories, maybe due to the presence of oxygen impurities. This new find is of great importance in shape-dependent catalysis, sensor characteristics, or other properties of material such as nanocrystals.