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News

How to Identify the Tourmaline.

  • Author:Fiona
  • Source:Yadao
  • Release on :2017-05-11
1. The structure of the tourmaline crystal: the composition of the tourmaline as a complex of silicate, so in general, the tourmaline material was long columnar, cylindrical vertical lines, crystal cross section of the triangle, it is easy to identify The This is the authenticity of the tourmaline identification method, the original stone to identify the most simple and easiest way. 2. tourmaline ghosting characteristics: tourmaline has a strong pleochroism, birefringence ghosting. This is the crucian authenticity in the identification method is critical. 3. Tourmaline thermoelectric properties: tourmaline and other precious stones is the biggest difference between its thermoelectricity. After the friction, heat, the tourmaline will produce a strong adsorption. This is the simplest and straightforward approach in the authenticity of tourmaline. To identify the tourmaline jewelry can be based on the following three characteristics: First, the tourmaline has a strong dichroism, red tourmaline for the red --- pink; green tourmaline green --- light green. This can be green tourmaline and olivine and green glass, green garnet and other distinction. Second, the tourmaline birefringence, from the table down to see the bottom edge can be seen in the obvious double shadow phenomenon, which can be tourmaline and topaz, synthetic spinel and other separate; Third, the tourmaline often grinding into grandmother Green, from the direction of the parallel length can often see some tubular wrap or cotton, and in the short direction of the observation often found its color becomes darker, it is because the tourmaline in different directions to absorb light, the use of this feature can distinguish Some synthetic imitation.