from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A dark green to brown or black mineral, ZnAl2O4. Also called zinc spinel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A rare mineral ZnAl2O4 in the spinel group.

from the GNU version of the Collaborative International Dictionary of English

  • n. Zinc spinel; automolite.

from The Century Dictionary and Cyclopedia

  • n. A mineral of the spinel group, crystallizing in the isometric system, commonly in regular octahedrons.


After Johan Gottlieb Gahn (1745-1818), Swedish mineralogist.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Named after Swedish chemist Johan Gottlieb Gahn (1745-1818) in 1807. (Wiktionary)


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