File:SEM.JPG
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SEM
Photo courtesy: WikiMedia Commons
The SEMs technique, with additional attachments, can obtain elemental analysis. Polished specimens give a better result, since in rough specimens the variations are due to surface rather than the actual structure. In most cases, the samples have to be coated with a layer of silver or gold for more accurate results. SEM uses high magnification for examination of surface and submicroscopic surfaces. It is useful for:
- Identification of gemstones
- Origin identification of gemstones
- Identification of treatments, such as the glass fillings in ruby
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:34, 1 November 2009 | | 480 × 360 (24 KB) | Tim (talk | contribs) | SEM <br /> Photo courtesy: WikiMedia Commons <br /> <br /> The SEMs technique, with additional attachments, can obtain elemental analysis. Polished specimens give a better result, since in rough specimens the variations are due to surface rather than th |
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