wholesale jewelry making supplies in bulk in india
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wholesale jewelry making supplies in bulk in india
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bogota jewelry wholesale There are generally no fakes when buying gold on the facade, but it depends on whether it is gold or gold
The following is some techniques to identify the authenticity of gold.
It the color of the color according to the different gloss and color of the gold, you can generally distinguish the pure gold, K gold, real gold and fake gold. That is, gold is better yellow (yellow -red), and the color is more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%. Therefore, there is a formula for "seven green eight yellow, yellow nine five red, yellow leucorrhea ash pairs of gold". For long -term gold jewelry, there will be a saying that "copper turns green, silver turns black, and gold will never change color".
This weight is about double the weight of the same volume than the same volume. True gold has a feeling of falling on the hand, while copper or others only have a sense of heavyness without falling.
The note that the golden ductility is very good, it should be shined lightly. It is too hard to deform.