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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.minerals.net/mineral/pyrite.aspx

In the old mining days, Pyrite was sometimes mistaken for Gold, as they frequently occur .... Utah, large, well shaped pyritohedrons and cubes were once found.

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  ...

geology.com/minerals/pyrite.shtml

These tiny spheres of euhedral pyrite crystals are often found in organic muds, coal, shale, and other types of rocks. This is a framboid from the Waynesburg coal ...

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.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.mcdougallminerals.com/blog/the-pyrite-of-navajun-spain

Jan 11, 2014 ... Pyrite Crystals from the Victoria Mine, Navajún, La Rioja, Spain – 7.2 .... although other crystal forms are also found at the Victoria Mine (and at ...

study.com/academy/lesson/what-is-pyrite-fools-gold-properties-definition-facts.html

Aug 26, 2015 ... It is a very common mineral in ore deposits, where it is found along with other metal-containing minerals, including gold. And yet pyrite is not ...

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 ...