Beryllonite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Beryllonite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | ● |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
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.