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: 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 ...

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 | Earth Sciences Museum - University of Waterloo

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

Much of the pyrite contained in sediments and sedimentary rocks is authigenic, formed in the depositional environment, or early diagenetic, formed during the ...

Pyrite: Pyrite mineral information and data. - Mindat

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 ...

This Chunk Of Fool's Gold Naturally Formed In These Cubes

io9.gizmodo.com/this-chunk-of-fools-gold-naturally-formed-in-these-cube-1689943134

Mar 6, 2015 ... The golden color and shine of iron pyrite (which is responsible for its nickname, " fool's gold") may grab all the attention. But, there is another ...

Why does pyrite form cubic crystals? - Chemistry Stack Exchange

chemistry.stackexchange.com/questions/29330/why-does-pyrite-form-cubic-crystals

Apr 26, 2015 ... So why is it that the pyrite in this rock forms nearly perfect cubes? ... the shape is dependent on the concentration of sulphur during its formation.

Sedimentary pyrite formation: An update - ScienceDirect

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

Sedimentary pyrite formation during early diagenesis is a major process for controlling the oxygen level of the atmosphere and the sulfate concentration in ...

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 ...