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Bertrandite from
Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France


00889010017370624146271.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05944760017271999644832.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
00889010017370624146271.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05944760017271999644832.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
00889010017370624146271.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05944760017271999644832.jpg
Bertrandite

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
Locality type:Quarry
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Comments:Geodes with small (1-2mm) crystals replacing beryl in veins that are rich in micas.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:236292
Long-form Identifier:1:3:236292:2
GUID (UUID V4):0
Nearest other occurrences of Bertrandite
49.3km (30.7 miles) ⓘGwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France
References
Lukas, Yann (1978) Roches et minéraux de Bretagne. Ouest France. p.1-33.p.11 - + p.30
 
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