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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Boleite from
La Fonderie slag locality, Poullaouen, Châteaulin, Finistère, Brittany, France


Locality type:Slag Locality
Classification
Species:Boleite
Formula:KPb26Ag9Cu24(OH)48Cl62
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Boleite data
Locality Data:Click here to view La Fonderie slag locality, Poullaouen, Châteaulin, Finistère, Brittany, France
Data Identifiers
Mindat Occurrence Record ID:204084
Long-form Identifier:1:3:204084:4
GUID (UUID V4):0
References
Germain C., Leydet J-C., Saget Ph. (1990), Les minéraux de néoformation de Huelgoat (Finistère), Le Cahier des Micromonteurs, n°3, 3-16
 
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