Identification method:
1. Experiment: Natural amber is very light. If you put it (without any inlay) in water, it will sink to the bottom. But you don't have to worry. When you add dissolved brine to it, when the salt concentration is greater than 1 4 (1 salt, 4 parts water), the real amber will float slowly, but the fake amber will not.
2. Sound: Amber chains or beads without inlay will make a soft and slightly dull sound when gently rubbed in your hands. If the sound of plastic or resin is crisp.
3. Incense: Amber rough stone that has not been finely polished can smell a faint special aroma after being rubbed by hand to generate heat. The fragrance of white beeswax is slightly heavier than other ordinary amber, so it is called "Xiangpo". Generally speaking, amber that has been polished or carved by hand smells bad when rubbed by hand.
4. Visual inspection: This is a trick to identify true and false amber; 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. Amber is transparent but moist, unlike glass, crystal and diamond, which can be seen at a glance. Fake amber is either transparent or opaque, and the color is fake when it dies. Artificial fake amber is dazzling, and it will feel lifeless cold light.
5. Ultraviolet irradiation: put amber under the money detector, it will have fluorescence, light green, green, blue, white and so on. Plastic fake amber does not change color.
6. Friction with static electricity: Amber can attract small pieces of paper after rubbing on clothes.
7. Feel: Amber is a neutral gem, which is generally neither too cold nor too hot. Glass imitations will have a cold feeling.
8. Hot test: the needle is burned in an inconspicuous place of amber, with a faint pine fragrance. Bakelite and plastic smell pungent and stick to needles. Friendly reminder: Too hot will leave black spots on the amber surface, which will affect the appearance.
9. Needle-picking test with a knife: Cutting amber with a paper cutter will pulverize, resin will fall off in pieces, plastic will roll up, and glass will not be cut open. When you flush amber with a hard needle at an angle of 20-30 degrees from the horizontal line, you will feel explosive and there will be extremely fine powder residue. If it is plastic or other substances with different hardness, it will not stick, or it will feel sticky, or even stick in. Friendly reminder: this experiment will damage your jewelry. If you pick out the cut part, you can only find a professional to repair it. It is best not to do it or do it less, so as not to cause harm to amber.
10. nail polish remover: wipe the amber surface repeatedly with a cotton swab, with no obvious change. Plastics, pressure and amber have not changed, but resin and Coba butter will be corroded because they are not petrified, resulting in sticking pits. Rosin will melt slowly when it is soaked in liquid medicine. Friendly reminder: some amber has a layer of polishing substance, which will turn into white spots when wiped with drugs, but this layer of white spots can be scraped off with nail shells to expose the surface of amber, and there will be no change when rubbed with drugs. The liquid medicine still has 18%-20% solubility in amber, and the surface may become foggy after soaking for a long time)
1 1. Observe scales: This is the most important method to identify inlaid amber. Amber usually has beautiful scales of lotus leaves, which have different feelings from different angles, have different refraction and emit spiritual light. The transparency of fake amber is generally not high, and the scales emit dead light, which is similar from different angles and lacks the aura of amber. The scales and patterns in fake amber are mostly injection molded, so most of them are the same. The most common one on the market is the red scale.
12. Eyeballs: Most of the bubbles in amber are round, while most of the bubbles in pressed amber are long and flat.
13. Cost appraisal: Take it to CMA Jewelry Appraisal Center to measure refractive index, density, etc.
The best test methods: visual inspection, ultraviolet irradiation, hand feeling and salt water. Other methods will do some harm to amber even if they are detected to be true. The above identification methods cannot be used alone, and amber should be separated layer by layer by various testing methods.