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Yvonite - Salsigne mine, Mas-Cabardès, Carcassonne, Aude, Languedoc-Roussillon, France (TYPE LOCALITY)
(#:MINS8640)
Specimen richly covered with xls of blue Yvonite up to 1 mm with Geminite in association on decomposing Bismuth matrix, from the type locality of this rare specie.
Formula :
Cu(AsO
3
OH)·2H
2
O
System:
triclinic
Hardness:
3½-4
Rarity:
extremely rare
Strunz id:VII/C.06-35 - VII : Phosphates, Arsenates, Vanadates
Name origin:
Named in honor of Klaus Yvon, professor of crystallography at the University of Geneva, Switzerland.
Specimen weight:166 gr.
Crystal size:up to 1 mm
Overall size: 52mm x 48 mm x 20 mm
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