London dichroscope LD10
60,00 €
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Available from stock
Foldable dichroscope for the observation of pleochroism, i.e. direction-dependent polychromatism of transparent rough and polished gemstones.
Availability: In stock
Description
London dichroscope
The device is used to detect pleochroism of transparent stones in cut or rough condition. It is suitable for stones that show medium to strong pleochroism. The instrument works through two crescent-shaped polarizing filters, each oriented at 90° to each other.
Technical details:
- Lens with polarizing filters: Ø 20 mm
- Dimensions (W×W): 40mm x 50mm
- Weight: 20g
Background information on investigations with dichroscopes can be found in the methods article Dichroscopy.
You can find practical dichroscope application examples in the article: Testing gemstones and recognizing imitations
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