gahnite

[gah-nahyt]

Phonetic (Standard)IPA

noun

a dark-green to black mineral of the spinel group, zinc aluminate, ZnAl 2 O 4 .

gahnite

/ ˈɡɑː�Բ�ɪ�� /

noun

a dark green mineral of the spinel group consisting of zinc aluminium oxide. Formula: ZnAl 2 O 4

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Word History and Origins

Origin of gahnite¹

1800–10; named after J. G. Gahn (1745–1818), Swedish chemist; -ite ¹

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Word History and Origins

Origin of gahnite¹

C19: named after J. G. Gahn (1745–1818), Swedish chemist; see _-ite ¹

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Example Sentences

Examples have not been reviewed.

Spinel, spin′el, or spi-nel′, n. a mineral composed chiefly of magnesia and alumina, and crystallising in octahedra—ruby, or magnesia spinel, reddish; pleonaste, dark green to black; picotite, or chrome spinel, black; gahnite, or zinc spinel, green to brown; hercynite, or iron spinel, black.

From

Associated with franklinite at Franklin Furnace, and found also at some other localities, is another member of the spinel group, namely, gahnite or zinc-spinel, which is a zinc aluminate, ZnAl2O4, with a little of the zinc replaced by iron and manganese.

From

Gahanna GAI

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