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Manganese

/ˈmæŋɡəniːz/noun

The brittle grey metal used to harden steel and needed in trace amounts by living things.

The Greek roots

Μαγνησία
Magnēsía
Magnesia, a Greek district

Literally: of Magnesia

The story of the word

Two black minerals confused their way into this name. Glassmakers used magnesia nigra, pyrolusite, to pull the green tint out of glass and called it glassmakers' soap; the term drifted through Italian as manganese, and when Johan Gottlieb Gahn isolated the metal in 1774 the corrupted spelling stuck. Magnesium was named later from the white magnesia, so the two elements are cousins by way of the same Greek place name and a centuries-old mix-up.

How it travelled
Ancient Greek → Medieval Latin → Italian → French → English
First recorded
18th century

Same family

magnesiummagnetmagnesia

In a sentence

Rail steel carries about one per cent manganese for toughness.

Deep-sea manganese nodules have been surveyed for sixty years and mined almost never.

Built on the same root

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