Slocum stone
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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
- Wikipedia: http://en.wikipedia.org/wiki/Opal (accessed Oct. 12, 2005)
- Michael O'Donoghue and Louise Joyner, Identification of Gemstones, Butterworth-Heinemann, Oxford, 2003