Etymology

retgersite

R1E1T1G2E1R1S1I1T1E1

Today it means: A tetragonal-trapezohedral dark green mineral containing hydrogen, nickel, oxygen, and sulfur. Full definition →

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The story

Named after Jan Willem Retgers (1856-1896), Dutch crystallographer. Retgers + -ite

Etymology from Wiktionary, CC BY-SA 4.0.