Beryllonite
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Physical & Optical Properties
Mohs Hardness
Crystal System
Value & Market
Where to Buy Beryllonite
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About Beryllonite
Beryllonite is a rare sodium beryllium phosphate mineral forming colorless to pale yellow or white short prismatic crystals in granitic pegmatites. Gem-quality transparent material from Stoneham, Maine, and Minas Gerais, Brazil, is occasionally faceted, producing interesting if fragile collector gems with a vitreous luster. Its near-perfect cleavage makes cutting extremely challenging, and finished gems are highly unusual.