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Bertrandite from
Hayes Ledge Quarries (East and West), Greenwood, Oxford Co., Maine, USA

Locality type:Quarry
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Comments:Has produced some of the world's largest bertrandite crystals and holds the world record size for "butterfly" multiple twin crystals.
Habit:World's largest butterfly twins
Colour:Creamy white to light tan
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., 1994, Mineralogy of Maine, v. 1; King, V. 2000, Mineralogy of Maine, v. 2.
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Hayes Ledge Quarries (East and West), Greenwood, Oxford Co., Maine, USA
Nearest other occurrences of Bertrandite
0.1km (0.1 miles) Outback prospect (Gross prospect), Greenwood, Oxford Co., Maine, USA
0.5km (0.3 miles) Morgan Quarry (Upper Noyes Mountain Quarry; Upper Harvard Quarry), Greenwood, Oxford Co., Maine, USA
0.5km (0.3 miles) Noyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford Co., Maine, USA
1.2km (0.8 miles) Waisanen Quarry (Tamminen-Waisanen Quarry), Greenwood, Oxford Co., Maine, USA
1.2km (0.8 miles) Tamminen Quarry, Greenwood, Oxford Co., Maine, USA
3.0km (1.9 miles) B.B. No. 7 Quarry, Norway, Oxford Co., Maine, USA
5.4km (3.3 miles) Emmons Quarry (Uncle Tom Mountain Quarry), Uncle Tom Mountain, Greenwood, Oxford Co., Maine, USA
6.6km (4.1 miles) Ski Pike Quarry, West Paris, Oxford Co., Maine, USA
11.3km (7.0 miles) Bumpus Quarry, Albany, Oxford Co., Maine, USA
12.9km (8.0 miles) Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford Co., Maine, USA
 
Mineral and/or Locality  
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