Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A brittle, dark green to brown or black mineral, ZnAl2O4.
from The Century Dictionary.
- noun A mineral of the spinel group, crystallizing in the isometric system, commonly in regular octahedrons.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) Zinc spinel; automolite.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A rare
mineral Zn Al 2O 4 in thespinel group.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Johan Gahn, (1745–1818), Swedish mineralogist.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
Named after Swedish chemist Johan Gottlieb Gahn (1745-1818) in 1807.
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Examples
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