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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

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.

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, ...

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.kidsloverocks.com/html/where_to_find_rocks.html

The great thing about rock collecting is that rocks can be found everywhere! ... Pyrite is a highly sought after by rock collectors for it's shiny golden crystal ...

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 ...

igs.indiana.edu/RocksAndMinerals/Pyrite.cfm

Pyrite is found in small amounts all over the state in many different rock types. It is most abundant in coal beds of southwestern Indiana. It can even make up 2 to ...

www.galleries.com/Pyrite

Pyrite is commonly found in nodules. A flattened nodular variety called "Pyrite Suns" or "Pyrite Dollars" is popular in rock shops. Also massive or reniform and ...

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 ...

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 ...