Difference between revisions of "Gahnite"
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== Description == | == Description == | ||
| − | A dark green to black [ | + | A dark green to black [[spinel]] mineral composed of zinc aluminum oxide. Gahnite was named after the Swedish mineralogist John Gottlieb Gahn. Specimens have been obtained in Sweden (Galun), Argentina (Cordoba),and several areas of the U.S. (Massachusetts, North Carolina, Arizona, Maine, New Jersey). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 14:57, 15 January 2014
Description
A dark green to black Spinel mineral composed of zinc aluminum oxide. Gahnite was named after the Swedish mineralogist John Gottlieb Gahn. Specimens have been obtained in Sweden (Galun), Argentina (Cordoba),and several areas of the U.S. (Massachusetts, North Carolina, Arizona, Maine, New Jersey).
Synonyms and Related Terms
zinc spinel
Other Properties
Color = green, blue, brown or gey. Crystals= octahedral
| Composition | ZnAl2O4 |
|---|
Authority
- Encyclopedia Britannica, http://www.britannica.com Comment: "Gahnite." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 19 May 2004 .
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Gahnite (Accessed Sept. 7, 2005)
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998