Difference between revisions of "Olivine"
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== Description == | == Description == | ||
| − | + | [[File:Olivineemr2.jpg|thumb|Olivine]] | |
An olive green color magnesium iron silicate mineral. Olivine occurs in igneous and metamorphic rocks and has two compositional varieties: [[fayalite|fayalite]] (iron rich) and forsterite (magnesium rich). Olivine beads have been found in pre-Dynastic Egyptian jewelry. The opaque stone was found in Egypt, in the lava of Vesuvius and in the Eifel district of Germany. Transparent, gem quality stones, called [[peridot|peridot]], come from Zabargad (St. John's Island in the Red Sea) and from Minas Gerais (Brazil), South Africa, Myanmar (formerly Burma), Norway, British Columbia, and the U.S.(Arizona, Hawaii). | An olive green color magnesium iron silicate mineral. Olivine occurs in igneous and metamorphic rocks and has two compositional varieties: [[fayalite|fayalite]] (iron rich) and forsterite (magnesium rich). Olivine beads have been found in pre-Dynastic Egyptian jewelry. The opaque stone was found in Egypt, in the lava of Vesuvius and in the Eifel district of Germany. Transparent, gem quality stones, called [[peridot|peridot]], come from Zabargad (St. John's Island in the Red Sea) and from Minas Gerais (Brazil), South Africa, Myanmar (formerly Burma), Norway, British Columbia, and the U.S.(Arizona, Hawaii). | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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[[[SliderGallery rightalign|forsteriteRS.jpg~Raman]]] | [[[SliderGallery rightalign|forsteriteRS.jpg~Raman]]] | ||
| − | == | + | ==Physical and Chemical Properties== |
Orthorhombic crystal system with massive or granular forms. | Orthorhombic crystal system with massive or granular forms. | ||
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! scope="row"| Density | ! scope="row"| Density | ||
| − | | 3.27-3.37 | + | | 3.27-3.37 g/ml |
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== Comparisons == | == Comparisons == | ||
[[media:download_file_423.pdf|Properties of Common Gemstones]] | [[media:download_file_423.pdf|Properties of Common Gemstones]] | ||
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== Additional Images == | == Additional Images == | ||
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</gallery> | </gallery> | ||
| + | ==Resources and Citations== | ||
| + | * B.Aston, J.Harrell, I.Shaw, "Stone" in ''Ancient Egyptian Materials and Technology'', P.Nicholson, I.Shaw (eds.), Cambridge University Press, 2000, p. 47-48. | ||
| − | + | * Mineralogy Database: [http://www.webmineral.com/data/Olivine.shtml Olivine] | |
* 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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* 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/Olivine (Accessed Nov. 9, 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 | ||
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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 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "olivine." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "olivine." Accessed 9 Dec. 2004 . |
* ''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 | ||
Revision as of 11:58, 10 August 2022
Description
An olive green color magnesium iron silicate mineral. Olivine occurs in igneous and metamorphic rocks and has two compositional varieties: Fayalite (iron rich) and forsterite (magnesium rich). Olivine beads have been found in pre-Dynastic Egyptian jewelry. The opaque stone was found in Egypt, in the lava of Vesuvius and in the Eifel district of Germany. Transparent, gem quality stones, called Peridot, come from Zabargad (St. John's Island in the Red Sea) and from Minas Gerais (Brazil), South Africa, Myanmar (formerly Burma), Norway, British Columbia, and the U.S.(Arizona, Hawaii).
Synonyms and Related Terms
chrysolite; peridot (yellow-green); fayalite (Fe2SiO4); forsterite (Mg2SiO4); Olivin (Deut.); olivino (Esp.); peridoto (Esp.); olivine (Fr.); olivijn (Ned.); oliwin (Pol.); olivina (Port.)
Physical and Chemical Properties
Orthorhombic crystal system with massive or granular forms.
Fracture = uneven to conchoidal. Luster = vitreous. Streak = colorless.
Transparent to translucent.
| Composition | (Mg,Fe)2SiO4 |
|---|---|
| CAS | 1317-71-1 |
| Mohs Hardness | 6.5 - 7.0 |
| Density | 3.27-3.37 g/ml |
Comparisons
Properties of Common Gemstones
Additional Images
Olivine
Forsterite
Resources and Citations
- B.Aston, J.Harrell, I.Shaw, "Stone" in Ancient Egyptian Materials and Technology, P.Nicholson, I.Shaw (eds.), Cambridge University Press, 2000, p. 47-48.
- Mineralogy Database: Olivine
- Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
- R.F.Symmes, T.T.Harding, Paul Taylor, Rocks, Fossils and Gems, DK Publishing, Inc., New York City, 1997
- 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/Olivine (Accessed Nov. 9, 2005)
- 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
- Encyclopedia Britannica, http://www.britannica.com Comment: "olivine." Accessed 9 Dec. 2004 .
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 561
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993