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Beryllonite

Type Locality
Joe McKeen Mountain locality (McKean Farm), Stoneham, Oxford Co., Maine, USA
Mineral Data
NaBePO4
Strunz: 
8.AA.10
Physical Properties
Crystal System: 
Monoclinic
Streak: 
White
Hardness: 
5.5 - 6.0
Tenacity: 
brittle