Web Results

Pyrite - Wikipedia

en.wikipedia.org/wiki/Pyrite

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical .... In the long term, however, oxidation continues, and the hydrated sulfates formed may exer...

How is pyrite formed? | Reference.com

www.reference.com/science/pyrite-formed-e4df9fb0bf71a6cd

Pyrite forms due to a chemical process initially caused by the decomposition of organic matter in bacterial sulfate reduction. The bacterial sulfate reduction ...

Pyrite | Earth Sciences Museum - University of Waterloo

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

The formation of pyrite requires the presence of organic matter in the sediment, sulphate in solution in the pore water, and locally anerobic (reducing) chemical ...

Pyrite Mineral | Uses and Properties - Geology.com

geology.com/minerals/pyrite.shtml

The uses and properties of the mineral Pyrite. ... It often occurs in well-formed crystals in the shape of cubes, octahedrons, or pyritohedrons, which often have ...

Pyrite: The mineral pyrite information and pictures

www.minerals.net/mineral/pyrite.aspx

An icosahedron formed from a combination of an octahedron and pyritohedron is also known. Pyrite crystals frequently form penetration twinning, especially in ...

Sedimentary pyrite formation: An update - ScienceDirect

www.sciencedirect.com/science/article/pii/0016703784900899

By contrast, pyrite formation in non-marine, freshwater sediments is severely ... process of sedimentary pyrite formation is the bacterial reduction of sulfate.

Sedimentary pyrite formation: An update

adsabs.harvard.edu/abs/1984GeCoA..48..605B

Sedimentary pyrite formation: An update. Authors: Berner, Robert A. Affiliation: AA(Department of Geology and Geophysics, Yale University, New Haven, ...

Pyrite: Pyrite mineral information and data. - Mindat.org

www.mindat.org/min-3314.html

Pyrite is a very common mineral, found in a wide variety of geological ... Well crystallized specimens are generally relatively stable, while pyrite formed as ...

DISCOVERING FOSSILS | What is pyrite?

www.discoveringfossils.co.uk/pyrite_formation_fossils.htm

The amount of pyrite formation in marine sediments is largely determined by the availability of sulphate, reactive iron and reactive organic matter during the ...

Sedimentary pyrite formation - American Journal of Science

www.ajsonline.org/content/268/1/1.abstract

Major stages of formation (bacterial sulfate reduction, formation of Fe monosulfides by reaction of H 2 S with Fe minerals, pyrite formation by reaction of Fe ...