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- Rambergite: MnS – mineralogist Hans Ramberg
- Riebeckite: Na2(Fe,Mg)5Si8O22(OH)2 – German explorer Emil Riebeck (1853–1885)
- Rossmanite: (LiAl2)Al6Si6O18(BO3)3(OH)4 – Caltech mineralogist George Rossman
- Russellite: (BiO2)WO4 – British mineralologist Arthur Russell
Read more about this topic: List Of Minerals Named After People