Leakage is dipping glue, which is also called curing treatment by people in the industry. It is to soak stones or semi-finished products in glue for hours or even days, which is a kind of turquoise optimization.
Turquoise is one of the "Four Famous Jade" in China. It is named after its shape like a pine cone and its color is close to pine green. The blue one is the most expensive and can be used as expensive jewelry decoration. Turquoise with pure colors such as blue, turquoise and green has a compact structure and can be used as a material for advanced art carving.
Extended data:
Optimization processing and its identification;
Natural turquoise is usually modified by wax injection, dyeing and injection molding. This practice is usually not recognized by the jewelry industry because it changes the nature of turquoise.
1, dyeing:
(1) dyed turquoise is unnatural in color. Turquoise dyed in the domestic market is often dark blue or dark green, which is too uniform, but the color becomes darker at the crack.
⑵ The dyed turquoise is very light in color, generally around 1mm, and light-colored nuclei may be exposed in some places.
2. Injection molding:
Injection molding includes injection molding of colorless and colored plastics, and the turquoise after injection molding can be identified by the following points:
⑴ Refractive index: Generally, injection molding will be lower than 1.6 1.
⑵ Relative density: The relative density of injection molding is relatively low, generally less than 2.76.
⑶ Hardness: The Mohs hardness of injection molding is generally 3-4, and the injection-molded turquoise is prone to scratches.
References:
Baidu encyclopedia-turquoise