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From Swedish Hisinger + -ite after Wilhelm Hisinger, Swedish chemist.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An iron silicate with a dark-brown or black color, formula Fe³⁺₂Si₂O₅(OH)₄·2H₂O. Full definition →
From Swedish Hisinger + -ite after Wilhelm Hisinger, Swedish chemist.
Etymology from Wiktionary, CC BY-SA 4.0.