File:Ramanscope.JPG
From The Gemology Project
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Raman Photo courtesy: Gübelin Gemmological Laboratory, Ltd.
This is a light-scattering and non-destructive technique which allows for the identification of inclusions in a gemstone by comparing a gemstone’s spectrum to a mineral database for identification of a gemstone. It shoots a laser beam at the gemstone sample and then measures the weak light emitted to measure the spectrum of the Raman Effect. Since each gemstone has its own distinguishing spectral pattern, the Raman Effect can be used as a tool of identification. The Raman can be used to:
- Identify liquid, solid, and gas phases
- Fingerprint inclusions
- Separate naturals from synthetics
- Identify a gemstone’s provenance, and in some cases, the exact mine from which a stone was obtained
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:07, 1 November 2009 | | 448 × 316 (21 KB) | Tim (talk | contribs) | Raman Photo courtesy: Gübelin Gemmological Laboratory, Ltd. This is a light-scattering and non-destructive technique which allows for the identification of inclusions in a gemstone by comparing a gemstone’s spectrum to a mineral database for identifi |
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