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beryllonite

noun be·ryl·lo·nite \ bə-ˈri-lə-ˌnīt \

Definition of beryllonite

plural -s
:a mineral NaBePO4 consisting of sodium beryllium phosphate occurring in light-colored topazlike orthorhombic crystals (hardness 5.5–6, specific gravity 2.85)

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Origin and Etymology of beryllonite

New Latin beryllium + English -on + -ite

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