Agate carved pieces of coral goldfish
 
 
  

 
 
  Agate water tank carved pieces of carp swimming
 
 

 
how to identify natural and dyed agate agate?
 

 
Recently, CCTV exposure Xiamen Dongpu gray wool processing as "Onyx"
  bracelet , the heavy metal content of such dyed agate generally high accumulation of carcinogenic in humans. Reports came out that caused widespread concern in the community. How can we distinguish between natural and dyed agate agate, so as not to get caught poison agate it? It is understood that distinguish poison agate can start from the color, transparency, temperature, texture, weight five.
 

 
CCTV exposure
 

 
dyed agate high content of heavy metals can cause cancer
 

 
Recently,custom silicone wristbands, reporters in Xiamen Dongpu survey found, colorful agate
  bracelet turned gray wool processing. What color you want, can be done based on different chemical solution and soaking process. According to the testing showed that the heavy metal content of such dyed agate generally high accumulation of carcinogenicity in humans and may induce mutations. Local operators introduced Xiamen Dongpu is the country's largest distribution center for raw agate, onyx only
  bracelet annual production of nearly 200 million, the market almost all visible from here. Processing frankly, more than 95% of the agate
  bracelet are basically done chemically dyed. Staining solution is highly corrosive main ingredient potassium nitrate, sodium nitrate and silver nitrate.
 

 
more than Xiamen Dongpu, dyed agate also exists in Fuxin County for 20 years. Since agate dyed households dumped chemical waste, local wells have turned green, the villagers poured vegetable are not used. Last July, authorities banned the dyeing agate industry. However, individual operators still continue to engage in, and some secretly transferred to the stained part of the field.
 

 
better natural red agate, dyed agate multi imitation of stone
 

 
agate color is very rich, often layered with different colors and circular stripe belts. Now the market has seen agate two dyeing and processing of natural color, natural color is mainly red, amber and white, red is better. While appearing on the market today, some red, black, yellow, green, blue, purple and other colors, some are composed of gray, light and other colors too beautiful man-made materials after processing dyed.
 

 
continuously enriched with agate, onyx market there have been many false agate, mostly stone imitation. In this regard, you can make judgments based on natural agate features:
 

 
a look at the color. Natural agate bright vivid color, with stripes belts, high quality agate also has oil sheen.
 

 
two to see transparency. Transparency is not as synthetic natural agate agate, just as with natural crystal general internal "clouds" the same.
 

 
three measured temperatures. Natural agate has cool features, imitation goods will change with temperature change temperature.
 

 
four to see the texture. Natural agate greater hardness, imitation jade products like scratches easily.
 

 
five weigh. Natural than synthetic agate jewelry agate jewelry to be heavier.