Difference between revisions of "Barite"

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[[File:baritedw.jpg|thumb|Barite]]
 
[[File:baritedw.jpg|thumb|Barite]]
 
== Description ==
 
== Description ==
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[[File:Bariteemr1.jpg|thumb|Barite]]
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A heavy, white mineral composed of [[barium sulfate]]. Barite occurs worldwide including Germany (North Rhine-Westphalia), France, Spain (Castile, Andalusia), England, Canada (Ontario, Nova Scotia, British Columbia), and the U.S.(New York, Connecticut, Pennsylvania, Virginia, Michigan, Missouri, New Mexico, Oklahoma, Utah, Colorado, South Dakota, Georgia, Tennessee, and California). The transparent to translucent stone can produce a sulfur-like odor when two pieces are rubbed together. Barite is ground to produce the natural form of barium sulfate white pigment called barium white that is often used as an extender.
  
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A heavy, white mineral composed of [http://cameo.mfa.org/materials/fullrecord.asp?name=barium sulfate barium sulfate]. Barite occurs worldwide including Germany (North Rhine-Westphalia), France, Spain (Castile, Andalusia), England, Canada (Ontario, Nova Scotia, British Columbia), and the U.S.(New York, Connecticut, Pennsylvania, Virginia, Michigan, Missouri, New Mexico, Oklahoma, Utah, Colorado, South Dakota, Georgia, Tennessee, and California). The transparent to translucent stone can produce a sulfur-like odor when two pieces are rubbed together. Barite is ground to produce the natural form of barium sulfate white pigment called barium white that is often used as an extender.
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[[[SliderGallery rightalign|BarytesUCL.jpg~Raman|Bariteitaly1.jpg~Raman|MFA- Barium sulfate.jpg~FTIR|PIG495.jpg~XRD]]]
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[[File:Bariteemr1.jpg|thumb|Barite]]
 
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
barium sulfate; baryte; barium white; Pigment White 22 (natural); barus (Gr.); Baryt (Deut., Pol., Sven.); barytine, barite (Fr., Port.); baritina (Esp.); barita (Esp.); Schwerspat (Deut.); bariet (Ned.); heavy spar; baryta; Bologna stone; desert rose (red color, flower-like formation)
 
barium sulfate; baryte; barium white; Pigment White 22 (natural); barus (Gr.); Baryt (Deut., Pol., Sven.); barytine, barite (Fr., Port.); baritina (Esp.); barita (Esp.); Schwerspat (Deut.); bariet (Ned.); heavy spar; baryta; Bologna stone; desert rose (red color, flower-like formation)
  
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[[[SliderGallery rightalign|BarytesUCL.jpg~Raman|Bariteitaly1.jpg~Raman|MFA- Barium sulfate.jpg~FTIR|PIG495.jpg~XRD]]]
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==Physical and Chemical Properties==
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== Other Properties ==
 
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Orthorhombic crystal system with tabular, lamellar, or fibrous crystals.  Perfect cleavage in one direction, good in a second direction.  Fracture = uneven.  Luster = vitreous;  Streak = white; 
 
  
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Low birefringence.  Under cross polars, rotating the stage may cause the particles to twinkle.
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* Orthorhombic crystal system with tabular, lamellar, or fibrous crystals. 
 +
* Perfect cleavage in one direction, good in a second direction. 
 +
* Fracture = uneven. 
 +
* Luster = vitreous; 
 +
* Streak = white; 
 +
* Low birefringence.   
 +
* Under cross polars, rotating the stage may cause the particles to twinkle.
  
 
{| class="wikitable"
 
{| class="wikitable"
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|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
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| 4.3-4.6
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| 4.3-4.6 g/ml
 
|-
 
|-
 
! scope="row"| Refractive Index
 
! scope="row"| Refractive Index
 
| 1.636; 1.637; 1.648
 
| 1.636; 1.637; 1.648
 
|}
 
|}
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== Additional Information ==
 
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Mineralogy Database: [http://www.webmineral.com/data/Barite.shtml Barite]
 
  
 
== Comparisons ==
 
== Comparisons ==
  
 
[[media:download_file_510.pdf|Characteristics of Common White Pigments]]
 
[[media:download_file_510.pdf|Characteristics of Common White Pigments]]
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== Additional Images ==
 
== Additional Images ==
Line 49: Line 45:
 
</gallery>
 
</gallery>
  
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==Resources and Citations==
 +
* Mineralogy Database: [http://www.webmineral.com/data/Barite.shtml Barite]
  
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== Authority ==
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* Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, ''Pigment Compendium'', Elsevier Butterworth-Heinemann, Oxford, 2004  Comment: Refractive index: alpha=1.634-1.637, beta=1.636-1.638, 1.646-1.648  
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* Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, ''Pigment Compendium'', Elsevier Butterworth-Heinemann, Oxford, 2004  Comment: Refractive index: alpha=1.634-1.637, beta=1.636-1.638, 1.646-1.648  
 
  
 
Dispersion=0.010
 
Dispersion=0.010
  
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: Barite. Retrieved May 24, 2003, from Encyclopdia Britannica Premium Service.
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: Barite. Retrieved May 24, 2003
  
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* R. J. Gettens, G.L. Stout, R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966
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* R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966
  
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* G.S.Brady, G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 83
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 83
  
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* C.W.Chesterman, K.E.Lowe, 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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* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Barite (Accessed Oct. 18, 2005)
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* Wikipedia,: http://en.wikipedia.org/wiki/Barite (Accessed Oct. 18, 2005)
  
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* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
+
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
  
 
* ''Dictionary of Building Preservation'', Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
 
* ''Dictionary of Building Preservation'', Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  
−
* Ralph Mayer, Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
+
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
  
−
* Susan E. Schur, 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
  
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  
−
* Random House, Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
+
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
  
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998

Latest revision as of 08:24, 2 May 2022

Barite

Description

Barite

A heavy, white mineral composed of Barium sulfate. Barite occurs worldwide including Germany (North Rhine-Westphalia), France, Spain (Castile, Andalusia), England, Canada (Ontario, Nova Scotia, British Columbia), and the U.S.(New York, Connecticut, Pennsylvania, Virginia, Michigan, Missouri, New Mexico, Oklahoma, Utah, Colorado, South Dakota, Georgia, Tennessee, and California). The transparent to translucent stone can produce a sulfur-like odor when two pieces are rubbed together. Barite is ground to produce the natural form of barium sulfate white pigment called barium white that is often used as an extender.

Raman

BarytesUCL.jpg

Raman

Bariteitaly1.jpg

FTIR

MFA- Barium sulfate.jpg

XRD

PIG495.jpg

Synonyms and Related Terms

barium sulfate; baryte; barium white; Pigment White 22 (natural); barus (Gr.); Baryt (Deut., Pol., Sven.); barytine, barite (Fr., Port.); baritina (Esp.); barita (Esp.); Schwerspat (Deut.); bariet (Ned.); heavy spar; baryta; Bologna stone; desert rose (red color, flower-like formation)

Physical and Chemical Properties

  • Orthorhombic crystal system with tabular, lamellar, or fibrous crystals.
  • Perfect cleavage in one direction, good in a second direction.
  • Fracture = uneven.
  • Luster = vitreous;
  • Streak = white;
  • Low birefringence.
  • Under cross polars, rotating the stage may cause the particles to twinkle.
Composition BaSO4
Mohs Hardness 3.0 - 3.5
Density 4.3-4.6 g/ml
Refractive Index 1.636; 1.637; 1.648

Comparisons

Characteristics of Common White Pigments

Additional Images

  • Barite

  • barium sulfate

Resources and Citations

  • Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004 Comment: Refractive index: alpha=1.634-1.637, beta=1.636-1.638, 1.646-1.648

Dispersion=0.010

  • R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 83
  • C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • 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
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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