2. sound; Amber chains or beads without inlay will make a soft and slightly dull sound when rubbed gently in your hands. If the sound of plastic or resin is crisp.
3, fragrance; Amber has almost no smell when rubbed. Amber that produces fragrance when rubbed is called "Xiangpo". Generally, amber only emits a loose fragrance when it burns.
4. Eye observation; This is a trick to identify true and false amber; As long as you are familiar with it-you will naturally have this ability. The texture, color depth, transparency and refractive index of true amber will change with the observation angle and illumination. This feeling can't be found in any other substance. Just as we distinguish between true and false people, for example, superb artists can create lifelike wax figures, and "confusing the false with the true" is just talk, and even the best wax figures can't escape our eyes. As long as you have your favorite amber with more than three colors and more than three months, no one can fool you. Amber is transparent but very moist, unlike glass, crystal and diamond. Fake amber is either transparent or opaque, and the color is fake when it dies. Artificial fake amber? Quot "amber flowers" are dazzling, and you will feel lifeless cold light. "Exposure to amber for a long time can tell the truth by intuition. Just like identifying a true person from a false one-no matter how good the wax figure is, I believe you will easily recognize that it is not a real person.
5. Ether experiment; Although the appearance of regenerated amber pressed with amber powder at high temperature is very close to that of natural amber, if a little ether is applied, it will feel sticky and dissolved in a few minutes. However, I have checked some of my amber fragments and put them in ether for about 20-30 minutes. They are still safe.
6. pH value; True pure natural amber is quite resistant to ordinary acid and alkali, because many amber produced in the Baltic Sea are salvaged from the sea and have been in the sea for hundreds of millions of years. If they are not acid and alkali resistant, I'm afraid we won't see them for a long time
7. Hardness test; When you gently stab the back of amber with a needle at an angle of 20-30 degrees (where you don't think it will hurt amber), there will be a slight sense of violence and a very fine powder residue. If it is plastic or other substances with different hardness, it will either stick, feel sticky or even stick inside.
However, the above experiments are either not done or done less, so as not to cause harm to amber.