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fool's gold

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.01 sec.
fool's gold: see pyrite pyrite (pī`rīt) or iron pyrites
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pyrite

 or iron pyrite or fool's gold

Naturally occurring, gold-coloured iron disulfide mineral. Pyrite has frequently fooled prospectors into thinking they had discovered gold. Pure pyrite (FeS2) contains 47% iron and 53% sulfur, by weight. Pyrite is used commercially as a source of sulfur, particularly for the production of sulfuric acid. Because there are much better sources of iron, it is not generally used as an iron ore. For many years Spain was the largest producer; other countries include Japan, the U.S., Canada, Italy, Norway, Portugal, and Slovakia.


fool's gold [¦fülz ¦gōld]
(mineralogy)


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Added Clippers coach Mike Dunleavy: ``We fell into classic fool's gold.
One of the most frustrating hires you'll make in Japan is the division head who brings all the promise of a gold mine, but all the results of fool's gold.
The underwriter's eternal quest for the silver bullet has always failed, and will always fail, to include the most recent silver bullet, credit scoring: Correlation without causation is statistically fool's gold.
 
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