Opal is the gem with the most unique color among colored gems. Portanto, in order to increase the play-of-color phenomenon of opal, set off the play-of-color phenomenon better or fill the cracks of opal, the market will optimize opal, the main methods are as follows :
Sugar Treatment: Put the non-play-of-color opal into saturated sugar water or high-concentration fruit juice and heat it. After cooling, the carbonized sugar will show a play-of-color phenomenon. Saccharified opal can be observed under a microscope to see the black spots left by the carbonized sugar. Saccharification is not a difficult processing method, and it is easy to identify, so it is rare on high-priced opals.
Glue filling treatment: Glue filling is mainly to fill the cracks of the opal. The opal has low toughness and may crack due to the loss of water. Portanto, this treatment is very common, but because it is filled with resin-based glue, it is used in fluorescent lamps. There will be a fluorescence reaction, and the general laboratory can detect whether it has undergone this treatment. Claro, scanning the infrared spectrum of jadeite can also be used to detect whether it is a glued opal.
Plastic Impregnation: Inject black plastic filling into the loosely structured opal to make it look like black protein, making the low-quality opal look like high-grade black opal, which can be seen under the microscope Traces after plastic filling.
Sandwich Opal: Double-layer Opal Doublets is a white opal with a black bottom, usually black agate is used to set off the original white opal to make its play-of-color phenomenon better; a transparent crystal on the three-layer opal Triplets Or a thin layer of opal sandwiched between the glass and the black bottom underneath is called a three-layer opal. Because only a small part of mezzanine opal is real opal, the price is much cheaper than the whole piece of opal.
Artificial Opal Imitations: Compress the imitations of salty opals with synthetic materials, and carefully observe the play-of-color of the opal with a magnifying glass. The edge lines of the play-of-color are like snakeskin-like zigzags, which are artificial imitations. The only way to park man-made and natural.
OEM/ODM Jóias Fabricante Design personalizado suas próprias jóias
Vamos começar : mo@kingjy.com
Guangzhou Jingying Focus em colares de anel de atacado personalizados Brincos Brincos de prata esterlina 925 joia,Gold de prata esterlina banhado com 18k,14K,24K ouro amarelo,Ouro branco e ouro rosa.,marca de logotipo ou outras palavras por gravação a laser de acordo com o requisito do cliente.
Nossa capacidade de produção mensal está fazendo 50,000 Brincos de colar de pulseiras,Jewelry Chain Shop,lojas de saída,atacadista de jóias,Companhia de comerciantes e joalheria,Profissional Fornecer Criar jóias personalizadas e produção em massa de alta qualidade 925 Serviço de jóias de prata esterlina.