Difference between revisions of "Slocum stone"

From CAMEO
Jump to navigation Jump to search
m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==")
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
 
== Description ==
 
== Description ==
  
One of the best imitation [http://cameo.mfa.org/materials/fullrecord.asp?name=opal opal] on the market. Slocum stone is made from laminated [http://cameo.mfa.org/materials/fullrecord.asp?name=glass glass] with embedded bits of metal foil. Under magnification, gas bubbles and other features of the glass can be detected.
+
One of the best imitation [[opal|opal]] on the market. Slocum stone is made from laminated [[glass|glass]] with embedded bits of metal foil. Under magnification, gas bubbles and other features of the glass can be detected.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
Line 7: Line 7:
 
imitation opal; Opal-essence
 
imitation opal; Opal-essence
  
 +
==Physical and Chemical Properties==
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
| 2.4-2.5
+
| 2.4-2.5 g/ml
 
|-
 
|-
 
! scope="row"| Refractive Index
 
! scope="row"| Refractive Index
Line 16: Line 17:
 
|}
 
|}
  
== Sources Checked for Data in Record ==
+
==Resources and Citations==
  
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Opal (accessed Oct. 12, 2005)
+
* Wikipedia: http://en.wikipedia.org/wiki/Opal (accessed Oct. 12, 2005)
  
 
* Michael O'Donoghue and Louise Joyner, ''Identification of Gemstones'', Butterworth-Heinemann, Oxford, 2003
 
* Michael O'Donoghue and Louise Joyner, ''Identification of Gemstones'', Butterworth-Heinemann, Oxford, 2003

Latest revision as of 12:30, 31 May 2022

Description

One of the best imitation Opal on the market. Slocum stone is made from laminated Glass with embedded bits of metal foil. Under magnification, gas bubbles and other features of the glass can be detected.

Synonyms and Related Terms

imitation opal; Opal-essence

Physical and Chemical Properties

Density 2.4-2.5 g/ml
Refractive Index 1.49-1.50

Resources and Citations

  • Michael O'Donoghue and Louise Joyner, Identification of Gemstones, Butterworth-Heinemann, Oxford, 2003