Difference between revisions of "Sodalite"
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| + | [[File:SC278782 (1).jpg|thumb|Cufflinks<br>MFA# 2012.50]] | ||
| + | == Description == | ||
[[File:Sodalitehippokes.jpg|thumb|Sodalite]] | [[File:Sodalitehippokes.jpg|thumb|Sodalite]] | ||
| − | + | [[File:ps30320sodalite2.jpg|thumb|Sodalite]] | |
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A blue, glassy mineral of sodium aluminum silicate that has been used as a [[gemstone|gemstone]] and for ornamentation. Sodalite was discovered in Greenland in 1806. It is produced in soda rich magmas and other deposits have been found near Vesuvius, in Norway, Romania, Portugal, Russia, Bolivia, Brazil, Canada (Ontario, Quebec, British Columbia) and the U.S. (Maine). Sodalite resembles [[lapis%20lazuli|lapis lazuli]], but is harder and does not contain the gold colored iron [[pyrite|pyrite]] flecks. Hackmanite, a variety of sodalite, fades to white when exposed to light but will regain its dark blue color when left in the dark. | A blue, glassy mineral of sodium aluminum silicate that has been used as a [[gemstone|gemstone]] and for ornamentation. Sodalite was discovered in Greenland in 1806. It is produced in soda rich magmas and other deposits have been found near Vesuvius, in Norway, Romania, Portugal, Russia, Bolivia, Brazil, Canada (Ontario, Quebec, British Columbia) and the U.S. (Maine). Sodalite resembles [[lapis%20lazuli|lapis lazuli]], but is harder and does not contain the gold colored iron [[pyrite|pyrite]] flecks. Hackmanite, a variety of sodalite, fades to white when exposed to light but will regain its dark blue color when left in the dark. | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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[[[SliderGallery rightalign|SODALITE PMA.TIF~FTIR (PMA)|sodaliteRS.jpg~Raman]]] | [[[SliderGallery rightalign|SODALITE PMA.TIF~FTIR (PMA)|sodaliteRS.jpg~Raman]]] | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Isometric system found as dodecahedrons or masses. Fluorescent (patchy orange). | + | * Isometric system found as dodecahedrons or masses. |
| − | + | * Fluorescent (patchy orange). | |
| − | Streak = white. Fracture = conchoidal or uneven. Luster = vitreous to greasy. Flame = yellow (sodium color) | + | * Streak = white. |
| + | * Fracture = conchoidal or uneven. | ||
| + | * Luster = vitreous to greasy. | ||
| + | * Flame = yellow (sodium color) | ||
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 2.14-2.50 | + | | 2.14-2.50 g/ml |
|- | |- | ||
! scope="row"| Refractive Index | ! scope="row"| Refractive Index | ||
| 1.483-1.487 | | 1.483-1.487 | ||
|} | |} | ||
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== Additional Images == | == Additional Images == | ||
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</gallery> | </gallery> | ||
| − | + | ==Resources and Citations== | |
| − | == | + | * Mineralogy Database: [http://www.webmineral.com/data/Sodalite.shtml Sodalite] |
* 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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* 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 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "sodalite" | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "sodalite" [Accessed December 4, 2001]. |
* 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 | ||
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Sodalite (Accessed Sept. 17, 2005) |
* ''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 | ||
Revision as of 15:08, 31 May 2022
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Description
A blue, glassy mineral of sodium aluminum silicate that has been used as a Gemstone and for ornamentation. Sodalite was discovered in Greenland in 1806. It is produced in soda rich magmas and other deposits have been found near Vesuvius, in Norway, Romania, Portugal, Russia, Bolivia, Brazil, Canada (Ontario, Quebec, British Columbia) and the U.S. (Maine). Sodalite resembles Lapis lazuli, but is harder and does not contain the gold colored iron Pyrite flecks. Hackmanite, a variety of sodalite, fades to white when exposed to light but will regain its dark blue color when left in the dark.
Synonyms and Related Terms
scapolite; Princess blue; hackmanite; sodalita (Esp.); sodalite (Fr., Port.); Sodalit (Deut.)
Physical and Chemical Properties
- Isometric system found as dodecahedrons or masses.
- Fluorescent (patchy orange).
- Streak = white.
- Fracture = conchoidal or uneven.
- Luster = vitreous to greasy.
- Flame = yellow (sodium color)
| Composition | Na4Al3(SiO4)3Cl |
|---|---|
| Mohs Hardness | 5.5 - 6.0 |
| Density | 2.14-2.50 g/ml |
| Refractive Index | 1.483-1.487 |
Additional Images
Sodalite
Resources and Citations
- Mineralogy Database: Sodalite
- Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
- 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
- Encyclopedia Britannica, http://www.britannica.com Comment: "sodalite" [Accessed December 4, 2001].
- C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
- Wikipedia: http://en.wikipedia.org/wiki/Sodalite (Accessed Sept. 17, 2005)
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976