Spessartine - Revision history

MDerrick at 17:51, 23 December 2022

2022-12-23T17:51:53Z

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	[[[SliderGallery rightalign\|Spessartine IR-ATR RRUFF R050063.png~IR-ATR (RRUFF)\|Spessartine Raman RRUFF R050063.png~Raman (RRUFF)\|spessartineRS.jpg~Raman (RASMIN)]]]		[[[SliderGallery rightalign\|Spessartine IR-ATR RRUFF R050063.png~IR-ATR (RRUFF)\|Spessartine Raman RRUFF R050063.png~Raman (RRUFF)\|spessartineRS.jpg~Raman (RASMIN)]]]
	== Physical and Chemical Properties ==		== Physical and Chemical Properties ==
			* Isometric crystal system with massive to crystalline habit
			* Cleavage = none
	* Fracture = conchoidal		* Fracture = conchoidal
	* Luster = vitreous to resinous		* Luster = vitreous to resinous
	* Streak = colorless		* Streak = colorless to white
	* Fluorescence = inert		* Fluorescence = inert
	* Birefringence = none		* Birefringence = none
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	\|-		\|-
	! scope="row"\| Mohs Hardness		! scope="row"\| Mohs Hardness
	\| 7.0 - 7.5		\| 6.5 - 7.5
	\|-		\|-
	! scope="row"\| Density		! scope="row"\| Density
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	\|-		\|-
	! scope="row"\| Dispersion		! scope="row"\| Dispersion
	\| 0.0 (fire ~~not visible~~)		\| 0.027 (weak fire)
	\|}		\|}

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	==Resources and Citations==		==Resources and Citations==
	* Gem Identification Lab Manual, Gemological Institute of America, 2016.		* Gem Identification Lab Manual, Gemological Institute of America, 2016.
			* Wikipedia: [https://en.wikipedia.org/wiki/Spessartine Spessartine] (Accessed Dec 2022)
	* Jack Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.		* Jack Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.
	* Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]		* Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]

MDerrick: /* Resources and Citations */

2022-12-10T19:45:58Z

Resources and Citations

← Older revision		Revision as of 15:45, 10 December 2022
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	==Resources and Citations==		==Resources and Citations==
			* Gem Identification Lab Manual, Gemological Institute of America, 2016.
	* Jack Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.		* Jack Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.

	* Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]		* Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]

	* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354		* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354

	* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." Accessed 20 Sept. 2005 .		* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." Accessed 20 Sept. 2005 .

	* 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

	* 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

MDerrick at 19:44, 10 December 2022

2022-12-10T19:44:58Z

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			[[File:Spessartine-t08-49a.jpg\|thumb\|Spessartine garnet; image credit Rob Lavinsky, [https://www.irocks.com/ iRocks.com]]]
			== Description ==
	[[File:ps30275spessartine.jpg\|thumb\|Spessartine]]		[[File:ps30275spessartine.jpg\|thumb\|Spessartine]]
	~~== Description ==~~

	A [[garnet\|garnet]] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [[gemstone\|gemstones]] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).		A [[garnet\|garnet]] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [[gemstone\|gemstones]] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).
	== Synonyms and Related Terms ==		== Synonyms and Related Terms ==

MDerrick at 19:38, 10 December 2022

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	garnet; spessartite; espesartina (Esp;); Spessartin (Deut.); spessartien (Ned.)		garnet; spessartite; espesartina (Esp;); Spessartin (Deut.); spessartien (Ned.)
	[[[SliderGallery rightalign\|Spessartine ~~Raman~~ RRUFF R050063.png~IR-ATR (RRUFF)\|Spessartine ~~IR-ATR~~ RRUFF R050063.png~Raman (RRUFF)\|spessartineRS.jpg~Raman (RASMIN)]]]		[[[SliderGallery rightalign\|Spessartine IR-ATR RRUFF R050063.png~IR-ATR (RRUFF)\|Spessartine Raman RRUFF R050063.png~Raman (RRUFF)\|spessartineRS.jpg~Raman (RASMIN)]]]
	== Physical and Chemical Properties ==		== Physical and Chemical Properties ==

MDerrick at 19:37, 10 December 2022

2022-12-10T19:37:15Z

← Older revision		Revision as of 15:37, 10 December 2022
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	A [[garnet\|garnet]] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [[gemstone\|gemstones]] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).		A [[garnet\|garnet]] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [[gemstone\|gemstones]] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).

	== Synonyms and Related Terms ==		== Synonyms and Related Terms ==

	garnet; spessartite; espesartina (Esp;); Spessartin (Deut.); spessartien (Ned.)		garnet; spessartite; espesartina (Esp;); Spessartin (Deut.); spessartien (Ned.)
			[[[SliderGallery rightalign\|Spessartine Raman RRUFF R050063.png~IR-ATR (RRUFF)\|Spessartine IR-ATR RRUFF R050063.png~Raman (RRUFF)\|spessartineRS.jpg~Raman (RASMIN)]]]
	[[[SliderGallery rightalign\|spessartineRS.jpg~Raman]]]

	== Physical and Chemical Properties ==		== Physical and Chemical Properties ==

	* Fracture = conchoidal.		* Fracture = conchoidal
	* Luster = vitreous to resinous.		* Luster = vitreous to resinous
	* Streak = colorless.		* Streak = colorless
			* Fluorescence = inert
			* Birefringence = none

	{\| class="wikitable"		{\| class="wikitable"
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	! scope="row"\| Refractive Index		! scope="row"\| Refractive Index
	\| 1.800-1.810		\| 1.800-1.810
			\|-
			! scope="row"\| Dispersion
			\| 0.0 (fire not visible)
	\|}		\|}

MDerrick at 21:01, 2 June 2022

2022-06-02T21:01:40Z

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	[[[SliderGallery rightalign\|spessartineRS.jpg~Raman]]]		[[[SliderGallery rightalign\|spessartineRS.jpg~Raman]]]

	== ~~Other~~ Properties ==		== Physical and Chemical Properties ==

	Fracture = conchoidal. Luster = vitreous to resinous. Streak = colorless.		* Fracture = conchoidal.
			* Luster = vitreous to resinous.
			* Streak = colorless.

	{\| class="wikitable"		{\| class="wikitable"
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	\|-		\|-
	! scope="row"\| Density		! scope="row"\| Density
	\| 4.15		\| 4.15 g/ml
	\|-		\|-
	! scope="row"\| Refractive Index		! scope="row"\| Refractive Index
	\| 1.800-1.810		\| 1.800-1.810
	\|}		\|}

	~~== Additional Information ==~~

	~~° J. Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.° Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]~~

	== Comparisons ==		== Comparisons ==
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	[[media:download_file_452.pdf\|Properties of Common Gemstones]]		[[media:download_file_452.pdf\|Properties of Common Gemstones]]

			==Resources and Citations==
			* Jack Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.

			* Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]
	~~== Sources Checked for Data in Record ==~~

	* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354		* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354

	* Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982		* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." Accessed 20 Sept. 2005 .

	* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." ~~Encyclopædia Britannica.~~ 20 Sept. 2005 .

	* 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

Jruggiero: Text replace - "\[http:\/\/cameo\.mfa\.org\/materials\/fullrecord\.asp\?name=([^\s]+)\s(.*)\]" to "$2"

2016-05-10T17:29:47Z

Text replace - "\[http:\/\/cameo\.mfa\.org\/materials\/fullrecord\.asp\?name=([^\s]+)\s(.*)\]" to "$2"

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	== Description ==		== Description ==

	A [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~garnet garnet] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~gemstone gemstones] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).		A [[garnet\|garnet]] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [[gemstone\|gemstones]] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).

	== Synonyms and Related Terms ==		== Synonyms and Related Terms ==

Jruggiero: Text replace - "== Authority ==" to "== Sources Checked for Data in Record =="

2016-05-01T23:45:54Z

Text replace - "== Authority ==" to "== Sources Checked for Data in Record =="

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	== ~~Authority~~ ==		== Sources Checked for Data in Record ==

	* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354		* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354

Unknown user at 12:42, 24 July 2013

2013-07-24T12:42:02Z

← Older revision		Revision as of 08:42, 24 July 2013
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	== Additional Information ==		== Additional Information ==

	J. Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982. Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]		° J. Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982.° Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]

	== Comparisons ==		== Comparisons ==
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	== Authority ==		== Authority ==

	* ~~G.S.Brady,~~ G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354		* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354

	* ~~Jack Odgen,~~ 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

	* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." ~~Encyclopdia~~ Britannica. 20 Sept. 2005 .		* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." Encyclopædia Britannica. 20 Sept. 2005 .

	* ~~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

	* ~~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

Unknown user at 18:19, 27 April 2013

2013-04-27T18:19:33Z

New page

[[File:ps30275spessartine.jpg|thumb|Spessartine]]
== Description ==

A [http://cameo.mfa.org/materials/fullrecord.asp?name=garnet garnet] composed of manganese aluminum silicate. The color of spessartine may range from an orange-yellow to brownish-red. Gem quality stones are mined in Germany, Malagasy Republic, India, and the United States (Colorado and Maine). Historically, spessartine [http://cameo.mfa.org/materials/fullrecord.asp?name=gemstone gemstones] are rare but a few have been found dating to the 2nd and 3rd century BCE (Odgen 1982).

== Synonyms and Related Terms ==

garnet; spessartite; espesartina (Esp;); Spessartin (Deut.); spessartien (Ned.)

[[[SliderGallery rightalign|spessartineRS.jpg~Raman]]]

== Other Properties ==

Fracture = conchoidal. Luster = vitreous to resinous. Streak = colorless.

{| class="wikitable"
|-
! scope="row"| Composition
| 3MnO-Al2O3-3SiO2
|-
! scope="row"| Mohs Hardness
| 7.0 - 7.5
|-
! scope="row"| Density
| 4.15
|-
! scope="row"| Refractive Index
| 1.800-1.810
|}

== Additional Information ==

J. Ogden, ''Jewelry of the Ancient World'', Rizzoli International Publications, New York, 1982. Mineralogy Database: [http://www.webmineral.com/data/Spessartine.shtml Spessartine]

== Comparisons ==

[[media:download_file_452.pdf|Properties of Common Gemstones]]

== Authority ==

* G.S.Brady, G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 354

* Jack Odgen, Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982

* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "spessartine." Encyclopdia Britannica. 20 Sept. 2005 .

* 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

* Random House, 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

[[Category:Materials database]]