Difference between revisions of "Paste diamond"
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== Description == | == Description == | ||
| − | An inexpensive, imitation [http://cameo.mfa.org/materials/fullrecord.asp?name=diamond diamond] [http://cameo.mfa.org/materials/fullrecord.asp?name=gemstone gemstone]. Paste diamonds are composed of a hard, highly refractive, [http://cameo.mfa.org/materials/fullrecord.asp?name=lead | + | An inexpensive, imitation [http://cameo.mfa.org/materials/fullrecord.asp?name=diamond diamond] [http://cameo.mfa.org/materials/fullrecord.asp?name=gemstone gemstone]. Paste diamonds are composed of a hard, highly refractive, [http://cameo.mfa.org/materials/fullrecord.asp?name=lead%20glass lead glass]. They lack the double refraction and regular molecular arrangement of true gem crystals (Brady 1971). |
| − | See [http://cameo.mfa.org/materials/fullrecord.asp?name=imitation | + | See [http://cameo.mfa.org/materials/fullrecord.asp?name=imitation%20diamond imitation diamond] for other types of simulated diamonds. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Authority == | == Authority == | ||
| − | * | + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 364 |
* ''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 07:28, 24 July 2013
Description
An inexpensive, imitation diamond gemstone. Paste diamonds are composed of a hard, highly refractive, lead glass. They lack the double refraction and regular molecular arrangement of true gem crystals (Brady 1971).
See imitation diamond for other types of simulated diamonds.
Synonyms and Related Terms
strass; rhinestone; lead glass; imitatie-diamant (Ned.)
Other Properties
Dispersion >0.02; low thermal conductivity
| Mohs Hardness | 5.0 - 6.0 |
|---|---|
| Density | 2.4-4.2 |
| Refractive Index | 1.67 |
Additional Information
G.S.Brady, Materials Handbook, 10th edition, McGraw-Hill, New York, 1971.
Comparisons
Natural and Simulated Diamonds
Authority
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 364
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Diamond_simulant (Accessed Feb. 2, 2006)