Difference between revisions of "Gemstone"

From CAMEO
Jump to navigation Jump to search
Line 16: Line 16:
 
[[media:download_file_413.pdf|Natural and Simulated Diamonds]]
 
[[media:download_file_413.pdf|Natural and Simulated Diamonds]]
  
== Sources Checked for Data in Record ==
+
==Resources and Citations==
  
* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "gemstone." Encyclopædia Britannica. 10 Nov. 2004 .
+
* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "gemstone." Accessed 10 Nov. 2004 .
  
 
* 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
Line 24: Line 24:
 
* ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996  Comment: Gems: cutting. by Ken Scaratt
 
* ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996  Comment: Gems: cutting. by Ken Scaratt
  
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Gemstone (Accessed Nov. 2, 2005)
+
* Wikipedia: http://en.wikipedia.org/wiki/Gemstone (Accessed Nov. 2, 2005)
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 11:14, 27 August 2022

Polished gemstones

Description

An ornamental, often valuable, mineral used for decoration in jewelry, small objects and clothing. Gemstones are normally transparent, crystalline stones such as diamonds, rubies, sapphires, emeralds, Topaz, and garnets. Non-transparent gems include Cat's eye chrysoberyl. Non-stone materials that have sometimes been used as gems are Ivory, Amber, Jet, and Coral. Gems are found in alluvial deposits and dug from veins. Major mining locations include Sri Lanka, southeast Asia, South Africa, Australia, Russia, Brazil and Colombia. Gemstones are characterized based on their color, clarity, cut and weight. Stones of exceptional size, beauty or rarity are highly valued. Techniques for cutting and polishing gemstones were developed in India in the 14th century.

Gemstone facet cuts

Synonyms and Related Terms

gemstones; gem; gem; ædelsten (Dan.); Schmucksteine (Deut.); gema (Esp.); gemme (Fr.); edelsteen (Ned.); gema (Port.); Ädelsten (Sven.)

Comparisons

Properties of Common Gemstones

Natural and Simulated Diamonds

Resources and Citations

  • C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
  • The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: Gems: cutting. by Ken Scaratt

Retrieved from "https://cameo.mfa.org/index.php?title=Gemstone&oldid=91870"