London dichroscope LD10
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Foldable dichroscope for the observation of pleochroism, i.e. direction-dependent polychromatism of transparent rough and polished gemstones.
Availability: In stock
Delivery time: in 3-6 days (EU) 5-21 days (world)
The device is used to determine 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.
- Lens with polarizing filters: Ø 20 mm
- Dimensions (W×W): 40mm x 50mm
- Weight: 20g
Background information on examinations with dichroscopes can be found in the article Dichroscopy on methods.
Practical dichroscope application examples can be found in the article: Testing gemstones and recognizing imitations