neighborite
/ˈneɪbərʌɪt/Mineralogy
noun
An orthorhombic fluoride of sodium and magnesium, NaMgF3, which occurs as colourless to pink crystals, isostructural with perovskite. Also (potassium neighborite), a similar mineral in which potassium replaces sodium.
Origin
1960s. From the name of Frank Neighbor, U.S. geologist + -ite.
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