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en.wikipedia.org/wiki/Pyrite

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical ... Pyrite is usually found associated with other sulfides or oxides in quartz veins, sedimentary rock, and metamorphic rock, as well as in coal beds ...

www.britannica.com/science/pyrite

Pyrite is called fool's gold because its colour may deceive the novice into thinking he has discovered a gold nugget. Nodules of pyrite have been found in ...

www.mindat.org/min-3314.html

Pyrite Group . Pyrite is a very common mineral, found in a wide variety of geological formations from sedimentary deposits to hydrothermal veins and as a  ...

www.minerals.net/mineral/pyrite.aspx

Pyrite has the same chemical formula as the rarer mineral Marcasite, but it crystallizes in .... Utah, large, well shaped pyritohedrons and cubes were once found.

www.esci.umn.edu/courses/1001/minerals/pyrite.shtml

Although no longer considered a valuable mineral in its own right, pyrite in a rock often ... Pyrite is also found along the Canadian border, in massive sulfide vein ...

www.thermofisher.com/blog/mining/pyrite-the-real-story-behind-fools-gold

Apr 1, 2014 ... “Fool's Gold” is technically known as pyrite or iron sulfide (FeS2) and is ... Pyrite is found in a wide variety of geological settings, from igneous, ...

geology.com/minerals/pyrite.shtml

Pyrite framboid: One of the most interesting forms of pyrite is the "framboid." These tiny spheres of euhedral pyrite crystals are often found in organic muds, coal, ...

blogs.scientificamerican.com/rosetta-stones/famous-fools-for-fool-8217-s-gold

Apr 1, 2015 ... Image shows a nice piece of pyrite with octrahedral crystal faces. ... He got really excited by a sparkly black rock he found on Kodlunarn Island ...

www.rocksandminerals4u.com/pyrite.html

Pyrite suns are found in slate seams of coal mines. These "suns" are flat disc shapes with a radial pattern. No one knows exactly how they are formed. There are ...

uwaterloo.ca/earth-sciences-museum/resources/detailed-rocks-and-minerals-articles/pyrite

It also may be found in radiating disks, hair-like crystals, concretions and massive lumps in sulphide ore deposits. Pyrite sometimes also contains small amounts ...