There is a full gold on the jewelry, and there is another one who doesn't know if it is encoding
5 thoughts on “How to identify the authentic golden gold”
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There is a full gold on the jewelry, and there is another one who doesn't know if it is encoding
You must be logged in to post a comment.
There are tips for the commonly identified color gold in cooked gold, that is, weighing weight, looking at color, ductive rhyme, softness, and acidity. Because golden density is significantly greater than common metals such as copper, silver, lead, and zinc, it is about twice as much as the same volume of silver and copper. If the items are gold, there is a heavy feeling. This is the "gold pending" of the people's ministry, otherwise it is light.
Gold is its unique golden yellow luster (exception exception). Pure gold will flash dazzling light under strong light. This is not available in other metals, including copper inside.
The gold with high color, no rhyme and elasticity when the sound is thrown in the ground, and the golden sound quality with low color is slightly brighter, and when the copper products are thrown on the ground, the sound loud. Therefore, according to the sound of the knocks, we can help us distinguish between common metals and gold.
Golds have the characteristics of good ductility and small hardness. Pure gold is folded and soft, and the bronze strips are laborious. Or use large head needles (nails are also fine). If the force is not large, the traces are obviously gold, and the copper is slightly larger and the traces are slightly worse. It is only difficult for gold bars, gold coins, bricks, and the like. The authenticity of the first judgment of gold is also effective, but it is necessary to use different orientation of the inspection objects. If the color of several grinding roads is obviously different, adulteration is undoubtedly mixed.
It does not believe the identification method of the above -mentioned cooked gold, you can only use nitric acid, that is, use nitric acid to point its grinding road to determine its true or false.
1. Observation identification method. Gold is "seven greens, eight yellows, nine purple ten red". It means that the blue gold contains 70%, the yellow contains 80%, the purple is 90%gold, and the red is almost 100%gold.
2. Sound identification method. Let the jewelry fall into the hard place, the sound is dull, and the explanation is good; the sound is crisp and the color difference is different.
3. Bend identification method. Twitte -folding utensils, the real gold is soft, easy to bend and not easy to break.
4. With a hard needle tip on the surface of the real gold, there are obvious traces, and the false traces are blurred.
5. Gold is the largest proportion of the material, and its proportion is 19:37. Bonard and red copper of the same weight are much larger than the same weight gold and red gold. You can know.
6. Fire burning identification method. True gold jewelry can not change color with fire, but it is not resistant to fake. After burning, it will turn dark brown, and it will lose light.
Full gold, thousands of gold, gold, and gold, refers to the different gold content
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