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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Nealite from
Slag dumps, Menez-Plom, Carnoët, Guingamp, Côtes-d'Armor, Brittany, France


Locality type:Mine Dump
Classification
Species:Nealite
Formula:Pb4Fe2+(As3+O3)2Cl4 · 2H2O
Comments:Only visual ID.
Confirmation
Validity:Unconfirmed/Questioned
Associated Minerals Based on Photo Data:
Cerussite1
Data
Mineral Data:Click here to view Nealite data
Locality Data:Click here to view Slag dumps, Menez-Plom, Carnoët, Guingamp, Côtes-d'Armor, Brittany, France
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:543204
Long-form Identifier:1:3:543204:2
GUID (UUID V4):0
References
P. Le Roch collection
 
and/or  
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