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Natrochalcite with Antlerite - Chuquicamata mine, Calama, Antofagasta Region, Chile
(#:MINS9011)
Specimen rich of darl green Antlerite xls aup to 1,5 mm with emeraldi green Natrochalcite on white contrasting matrix. Natrochalcite is a very rare hydrated sodium, copper sulfate and the Chuquicamata Mine of Chile is the type locality.
Formula :
NaCu
2
[OH/(SO
4
)
2
] * H
2
O
System:
monoclinic
Hardness:
4½
Rarity:
very rare
Strunz id:VI/D.18-30 - VI - Sulfates
Name origin:
In allusion to the composition, containing sodium (Latin = NATRium) and copper (CHALCo-)
Specimen weight:135 gr.
Crystal size:Up to 1.5 mm
Overall size: 68mm x 60 mm x 45 mm
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