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Covellite With Djurleite Ps. Pyrite and Chalcopyrite
Covellite is considered one of the 'holy grails' by Italian collectors, and the Calabona mine produced very few of them in its historical mining (1850-1900). These blades range up to 3 cm across, and they have a muted metallic luster and iridescence due to alteration to Djurleite (which produces a black surface with minute sparkles that are not coming through in the photos). The replacement is unusual. There is associated Djurleite ps. Pyrite, along with Pyrite and Chalcopyrite. To quote a previous owner, "A picture of this specimen was published by Revista Mineralogica Italiana (2009), vol 2, as one of the best minerals at the 2008 Turin exhibition." It is very 3-dimensional, and is better in person. This is a piece from the noted Bonisoli collection in Italy.
Unknown Owner
Known provenance
2024/08
Unknown
Not disclosed—Species and Locality Wiki Pages
Collectors of Djurleite from Sardinia
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