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Riddle (123.365W
42.952N) was the center of a mining district that included
the only significant nickel
mine in the United States
(ca. 8000 tons per year). The ore is primarily garnierite, a
nickel silicate formed by weathering of an ophiolite.
References
mindat.org
(accessed 2011-3-22)
The Pacific War Online Encyclopedia © 2011 by Kent G. Budge. Index