Difference between revisions of "Iron disulfide"

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[[File:Iron pyrite inlays-SC36631.jpg|thumb|Iron pyrite inlays<br>MFA# 26.20]]
 
[[File:pyriteemr1.jpg|thumb|Iron pyrite]]
 
[[File:pyriteemr1.jpg|thumb|Iron pyrite]]
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== Description ==
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Primarily occurs as a yellowish mineral with a metallic luster called [[pyrite]]. Iron disulfide also occurs as that mineral [[marcasite]].  Major sources for iron pyrite include sites in India, Turkey, and Russia. It was called fool's gold because its color and metallic sheen often is mistake for gold.  Polished pieces of iron pyrite have been used for necklaces and bracelets.  Ethanolamine thioglycollate treatments have been used to minimize the decomposition of pyritic specimens (Cornish 1984).
  
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Primarily occurs as a yellowish mineral with a metallic luster called [http://cameo.mfa.org/materials/fullrecord.asp?name=pyrite pyrite]. Iron disulfide also occurs as that mineral [http://cameo.mfa.org/materials/fullrecord.asp?name=marcasite marcasite].  Major sources for iron pyrite include sites in India, Turkey, and Russia. It was called fool's gold because its color and metallic sheen often is mistake for gold.  Polished pieces of iron pyrite have been used for necklaces and bracelets.  Ethanolamine thioglycollate treatments have been used to minimize the decomposition of pyritic specimens (Cornish 1984).
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See also [[pyrrhotite]].
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See also [http://cameo.mfa.org/materials/fullrecord.asp?name=pyrrhotite pyrrhotite].
 
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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iron (II) disulfide; iron pyrite; pyrite; fool's gold; martial pyrite; mundic; factitous pyrite; Pyrit (Deut.); pyrite (Fr.); pyriet (Ned.); piryt (Pol.); pirita (Port.);
 
iron (II) disulfide; iron pyrite; pyrite; fool's gold; martial pyrite; mundic; factitous pyrite; Pyrit (Deut.); pyrite (Fr.); pyriet (Ned.); piryt (Pol.); pirita (Port.);
  
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[[[SliderGallery rightalign|pyriteRS.jpg~Raman|Pyriteitaly2.jpg~Raman]]]
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[[[SliderGallery rightalign|pyriteRS.jpg~Raman (RASMIN)|Pyriteitaly2.jpg~Raman (U of Parma)|Pyrite Raman RRUFF R050190.png~Raman (RRUFF)]]]
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== Risks ==
  
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== Other Properties ==
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* Can evolve low levels of sulfur dioxide. 
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* Degrades in high humidity environments.
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* ThermoFisher: [https://www.fishersci.com/shop/msdsproxy?productName=AC233300010&productDescription=IRON(II)SULFIDE%2CC.P.%2C+FU+1KG&catNo=AC23330-0010&vendorId=VN00032119&storeId=10652 SDS]
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== Physical and Chemical Properties ==
  
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Insoluble in water.  Magnetic after heating. Crystal system = isometric  Cleavage = poor  Fracture = uneven  Luster = metallic  Streak = greenish black to brown
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* Insoluble in water  
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* Magnetic after heating   
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* Crystal system = isometric   
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* Cleavage = poor   
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* Fracture = uneven   
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* Luster = metallic   
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* Streak = greenish black to brown
  
 
{| class="wikitable"
 
{| class="wikitable"
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|-
 
|-
 
! scope="row"| Melting Point
 
! scope="row"| Melting Point
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| 1171-1188
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| 1171-1188 C
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
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| 4.9-5.1
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| 4.9-5.1 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|}
 
|}
  
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== Hazards and Safety ==
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=Resources and Citations==
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* L. Cornish, A.M. Doyle. "Use of Ethanolamine Thioglycollate in the Conservation of Pyritised Fossils" Palaeontology 27(2), 1984, 421-424.
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Can evolve low levels of sulfur dioxide. 
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* Gem Identification Lab Manual, Gemological Institute of America, 2016.
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* WebMinerals: [http://webmineral.com/data/Pyrite.shtml Pyrite]
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Degrades in high humidity environments.
 
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== Additional Information ==
 
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° L. Cornish, A.M. Doyle. "Use of Ethanolamine Thioglycollate in the Conservation of Pyritised Fossils" Palaeontology 27(2), 1984, 421-424.° WebMinerals: [http://webmineral.com/data/Pyrite.shtml Pyrite]
 
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== Authority ==
 
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* C.W.Chesterman, K.E.Lowe, ''Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf, New York, 1979
 
* C.W.Chesterman, K.E.Lowe, ''Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf, New York, 1979
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* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: density=4.95-5.1
 
* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: density=4.95-5.1
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* Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982
 
* Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982
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* Jon Byler, Submitted information, Jan. 23, 2006. melting point = 1171 C (Lange's Handbook 1985), melting point=1188C (CRC 78th ed.)
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* External source or communication  Comment: Submitted information: Jon Byler, Jan. 23, 2006. melting point = 1171 C (Lange's Handbook 1985), melting point=1188C (CRC 78th ed.)
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* Wikipedia: [https://en.wikipedia.org/wiki/Pyrite Pyrite] (Accessed Sept. 14, 2005 andDec 2022)
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* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Pyrite (Accessed Sept. 14, 2005)
 
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 422
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 422
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* Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
 
* Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
  

Latest revision as of 12:18, 28 December 2022

Iron pyrite inlays
MFA# 26.20
Iron pyrite

Primarily occurs as a yellowish mineral with a metallic luster called Pyrite. Iron disulfide also occurs as that mineral Marcasite. Major sources for iron pyrite include sites in India, Turkey, and Russia. It was called fool's gold because its color and metallic sheen often is mistake for gold. Polished pieces of iron pyrite have been used for necklaces and bracelets. Ethanolamine thioglycollate treatments have been used to minimize the decomposition of pyritic specimens (Cornish 1984).

See also Pyrrhotite.

Synonyms and Related Terms

iron (II) disulfide; iron pyrite; pyrite; fool's gold; martial pyrite; mundic; factitous pyrite; Pyrit (Deut.); pyrite (Fr.); pyriet (Ned.); piryt (Pol.); pirita (Port.);

Raman (RASMIN)

PyriteRS.jpg

Raman (U of Parma)

Pyriteitaly2.jpg

Raman (RRUFF)

Pyrite Raman RRUFF R050190.png

Risks

  • Can evolve low levels of sulfur dioxide.
  • Degrades in high humidity environments.
  • ThermoFisher: SDS

Physical and Chemical Properties

  • Insoluble in water
  • Magnetic after heating
  • Crystal system = isometric
  • Cleavage = poor
  • Fracture = uneven
  • Luster = metallic
  • Streak = greenish black to brown
Composition FeS2
CAS 1309-36-0
Mohs Hardness 6.0 - 6.5
Melting Point 1171-1188 C
Density 4.9-5.1 g/ml
Molecular Weight mol. wt. = 119.967

Resources and Citations=

  • L. Cornish, A.M. Doyle. "Use of Ethanolamine Thioglycollate in the Conservation of Pyritised Fossils" Palaeontology 27(2), 1984, 421-424.
  • Gem Identification Lab Manual, Gemological Institute of America, 2016.
  • WebMinerals: Pyrite
  • C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: density=4.95-5.1
  • Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
  • Jon Byler, Submitted information, Jan. 23, 2006. melting point = 1171 C (Lange's Handbook 1985), melting point=1188C (CRC 78th ed.)
  • Wikipedia: Pyrite (Accessed Sept. 14, 2005 andDec 2022)
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 422
  • Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985

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