Etymology

hisingerite

H4I1S1I1N1G2E1R1I1T1E1

Today it means: An iron silicate with a dark-brown or black color, formula Fe³⁺₂Si₂O₅(OH)₄·2H₂O. Full definition →

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The story

From Swedish Hisinger + -ite after Wilhelm Hisinger, Swedish chemist.

Etymology from Wiktionary, CC BY-SA 4.0.