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Bertrandite from
Pulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin Co., Maine, USA

Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Comments:One of the world's best untwinned bertrandite crystal clusters (to 4.4 x 2.5 x 2.5 cm) found about 1996 by Gregg Dionne.
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
References
References:King, V. and Foord, E., 2000, Mineralogy of Maine - Addenda to Volume 1, Mineralogy of Maine, v. 2.; Rocks and Minerals, (1997) 72:44-48
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Pulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin Co., Maine, USA
 
Mineral and/or Locality  
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