Difference between revisions of "Rhodonite"

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[[File:pr30307rhodonite.jpg|thumb|Rhodonite]]
 
[[File:pr30307rhodonite.jpg|thumb|Rhodonite]]
 
== Description ==
 
== Description ==
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[[File:Rhodonitef5.jpg|thumb|Polished rhodonite]]
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A bright pink, opaque [[gemstone|gemstone]] composed of [[manganese%20silicate|manganese silicate]]. Rhodonite is obtained from Russia, Germany, Hungary, Italy, Sweden, Canada, and Australia. It has a pearly to vitreous luster and ranges in color from pink to deep red, often with black veins. Rhodonite slowly tarnishes to brown or black with air exposure. It has been used in jewelry, carvings, and inlays. A variety of rhodonite that contains [[calcium|calcium]] is called bustamite and is mined in Mexico. A fine, transparent pink variety containing [[zinc|zinc]] is called fowlerite and is mined in New Jersey.
  
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A bright pink, opaque [http://cameo.mfa.org/materials/fullrecord.asp?name=gemstone gemstone] composed of [http://cameo.mfa.org/materials/fullrecord.asp?name=manganese%20silicate manganese silicate]. Rhodonite is obtained from Russia, Germany, Hungary, Italy, Sweden, Canada, and Australia. It has a pearly to vitreous luster and ranges in color from pink to deep red, often with black veins. Rhodonite slowly tarnishes to brown or black with air exposure. It has been used in jewelry, carvings, and inlays. A variety of rhodonite that contains [http://cameo.mfa.org/materials/fullrecord.asp?name=calcium calcium] is called bustamite and is mined in Mexico. A fine, transparent pink variety containing [http://cameo.mfa.org/materials/fullrecord.asp?name=zinc zinc] is called fowlerite and is mined in New Jersey.
 
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[[File:Rhodonitef5.jpg|thumb|Polished rhodonite]]
 
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
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manganese silicate; manganese simanganese spar; bustamite; fowlerite; Rhodonit (Deut.); rodonita (Esp.); rhodonite (Fr.) 
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manganese silicate; manganese spar; bustamite; fowlerite; Rhodonit (Deut.); rodonita (Esp.); rhodonite (Fr.) 
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[[[SliderGallery rightalign|Rhodonite IR-ATR RRUFF R040041.png~IR-ATR (RRUFF)|Rhodonite Raman RRUFF R040041.png~Raman (RRUFF)||rhodoniteRS.jpg~Raman (RASMIN)]]]
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==Physical and Chemical Properties==
  
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[[[SliderGallery rightalign|rhodoniteRS.jpg~Raman]]]
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* Triclinic system with rounded tabular crystals; may be massive or granular
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* Perfect cleavage in two directions
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== Other Properties ==
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* Fracture = conchoidal to uneven
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* Luster = pearly to vitreous
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Triclinic system with rounded tabular crystals; may be massive or granular. Perfect cleavage in two directions.  Fracture = conchoidal to uneven.  Luster = pearly to vitreous. Streak = white or colorless.
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* Streak = white or colorless.
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* Fluorescence = inert
  
 
{| class="wikitable"
 
{| class="wikitable"
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|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
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| 3.4-3.7
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| 3.4-3.7 g/ml
 
|-
 
|-
 
! scope="row"| Refractive Index
 
! scope="row"| Refractive Index
 
| 1.711 - 1.751
 
| 1.711 - 1.751
 +
|-
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! scope="row"| Birefringence
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| 0.010 to 0.014
 
|}
 
|}
  
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== Authority ==
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==Resources and Citations==
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* Gem Identification Lab Manual, Gemological Institute of America, 2016.
 
* Frank A. Lent, ''Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries.'', Stone Publishing Co, New York, 1925
 
* Frank A. Lent, ''Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries.'', Stone Publishing Co, New York, 1925
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* R.F.Symmes, T.T.Harding, Paul Taylor, ''Rocks, Fossils and Gems'', DK Publishing, Inc., New York City, 1997
 
* R.F.Symmes, T.T.Harding, Paul Taylor, ''Rocks, Fossils and Gems'', DK Publishing, Inc., New York City, 1997
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "rhodonite" [Accessed 18 Oct. 2005].
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "rhodonite" Encyclopædia Britannica Premium Service. [Accessed 18 Oct. 2005].
 
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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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* Wikipedia: [https://en.wikipedia.org/wiki/Rhodonite Rhodonite] (accessed Sept 14, 2005 and Dec 2022)
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* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Rhodonite (accessed Sept 14, 2005)
 
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* 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 12:51, 28 December 2022

Rhodonite

Description

Polished rhodonite

A bright pink, opaque Gemstone composed of Manganese silicate. Rhodonite is obtained from Russia, Germany, Hungary, Italy, Sweden, Canada, and Australia. It has a pearly to vitreous luster and ranges in color from pink to deep red, often with black veins. Rhodonite slowly tarnishes to brown or black with air exposure. It has been used in jewelry, carvings, and inlays. A variety of rhodonite that contains Calcium is called bustamite and is mined in Mexico. A fine, transparent pink variety containing Zinc is called fowlerite and is mined in New Jersey.

Synonyms and Related Terms

manganese silicate; manganese spar; bustamite; fowlerite; Rhodonit (Deut.); rodonita (Esp.); rhodonite (Fr.) 

IR-ATR (RRUFF)

Rhodonite IR-ATR RRUFF R040041.png

Raman (RRUFF)

Rhodonite Raman RRUFF R040041.png

Raman (RASMIN)

RhodoniteRS.jpg

Physical and Chemical Properties

  • Triclinic system with rounded tabular crystals; may be massive or granular
  • Perfect cleavage in two directions
  • Fracture = conchoidal to uneven
  • Luster = pearly to vitreous
  • Streak = white or colorless.
  • Fluorescence = inert
Composition MnSiO3
Mohs Hardness 5.5 - 6.5
Density 3.4-3.7 g/ml
Refractive Index 1.711 - 1.751
Birefringence 0.010 to 0.014

Resources and Citations

  • Gem Identification Lab Manual, Gemological Institute of America, 2016.
  • Frank A. Lent, Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries., Stone Publishing Co, New York, 1925
  • R.F.Symmes, T.T.Harding, Paul Taylor, Rocks, Fossils and Gems, DK Publishing, Inc., New York City, 1997
  • Encyclopedia Britannica, http://www.britannica.com Comment: "rhodonite" [Accessed 18 Oct. 2005].
  • C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
  • Wikipedia: Rhodonite (accessed Sept 14, 2005 and Dec 2022)
  • 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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