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