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Pyrite: "Fool's Gold" Options
Daemon
Posted: Friday, April 4, 2014 12:00:00 AM
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Pyrite: "Fool's Gold"

Widely known in the English-speaking world as "fool's gold" because it has often been mistaken for the precious metal but is vastly less valuable, pyrite is a gold-colored mineral made of iron and sulfur. Despite its nickname and reputation, it does sometimes contain small amounts of real gold. Pyrite is useful in electronics because of its semiconducting properties, but its chief use is as a source of sulfur in the manufacture of sulfuric acid. What are the hazards of mining pyrite? More...
peaty
Posted: Friday, April 4, 2014 5:22:16 AM
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I always spelled this as pyrites, with the final syllable pronounced (as "ease"). The Macmillan and Oxford online dictionaries confirm this. This must be an AE/BE difference.

Less is more (more or less).
thar
Posted: Friday, April 4, 2014 7:52:39 AM

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That picture does not do justice to its brilliant gold colour. And of course if it is in a cubic crystal you know it is not gold!

This is more like the flash stuff


you can see why it can get people excited.

And, peaty, now you make me think about it, I would say Iron pyrite, as opposed to chalcopyrite as part of the pyrite chemistry, but possibly pyrites for the actual mineral in situ.
curmudgeonine
Posted: Friday, April 4, 2014 8:46:58 AM

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My father brought me an envelope with some of this in it when I was a kid. It's quite lovely. Interesting to know of its dangerous volatile properties when mining, though
Haz
Posted: Friday, April 4, 2014 10:55:34 AM

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..... and the answer is:

Dust explosions

Pyrite oxidation is sufficiently exothermic that underground coal mines in high-sulfur coal seams have occasionally had serious problems with spontaneous combustion in the mined-out areas of the mine. The solution is to hermetically seal the mined-out areas to exclude oxygen.
monamagda
Posted: Friday, April 4, 2014 12:45:24 PM

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"MARMAJA", (pirita) is the name for this mineral pyrite, or iron pyrite.
And also called fool's gold "oro de bobos" the most popular use is for money!!
"Tengo el bolsillo lleno de marmaja" My pocket is full of money!!!
I wish you a pocket full of "marmaja"Applause
Marguerite
Posted: Friday, April 4, 2014 9:33:05 PM

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Now I know there is pyrite in my lithium battery.
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