Beryllonite
Formula: NaBePO4
Species: Phosphates
Colour: Colourless, white, rarely pale light yellow; colourless in transmitted light.
Lustre: Sub-Vitreous, Resinous, Waxy, Greasy
Hardness: 5½ – 6
Specific Gravity: 2.77 – 2.85
Crystal System: Monoclinic,
Name: Named by Edward S. Dana in 1888 in allusion to its composition, containing beryllium.
Co-Type Localities: Beryllonite Locality (Mcallister Occurrence), Stoneham, Oxford County, Maine 6 USA.
Joe McKeen Mountain locality (McKean Farm), Stoneham, Oxford County, Maine – USA