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Chalcophyllite


Chalcophyllite : Cu18Al2[(OH)9|SO4|AsO4]3 · 33H2O

Photo Copyright © 2000-2002 by Thames Valley Minerals. All Rights Reserved.
Kindly provided by Thames Valley Minerals - http://www.thamesvalleyminerals.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Wheal Gorland, St Day, Gwennap - St Day Area, Camborne - Redruth - St Day District, Cornwall, England, UK
A piece of vuggy gossan matrix has a fairly good growth of unfaded bluish/green chalcophyllite crystals to 2.5mm. The crystals take the classic hexagonal form in stacks or individual translucent crystals.

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