The plastic gave off a pungent smell and stuck to the needle. Friendly reminder: Being too hot will leave black spots on the surface of amber, which will affect the appearance. ) 03. Needle-picking test with a knife: Amber will be cut into powder, resin will fall off in pieces, plastic will be rolled up, and glass will not be cut. When you hit amber with a hard needle at an angle of 20-30 degrees from the horizontal line, you will feel crushed and the powder residue will be very fine. If it is plastic or other materials with different hardness, it will not stick, or it will feel sticky, or even stick in. Friendly reminder: This test 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. ) 04. Nail polish lotion: Wipe the amber surface repeatedly with a cotton swab, with no obvious change. Plastic, pressure and amber have not changed, but resin and coba grease will be corroded and sticky if they are not petrified. 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 liquid medicine, but this layer of white spots can be scraped off by the shell to expose the surface of amber, and the liquid medicine will not change when rubbed on it. The liquid medicine still has 18%-20% solubility in amber, and the surface may become foggy after being soaked for a long time. ) 05. Feel: Amber is a neutral organic gem, which is not very hot in summer and not too cold in winter, and it is very gentle. Use glass or chalcedony to prevent feeling cold and heavy. 06. Observing scales with eyes: This is the most important method to identify inlaid amber. Amber usually has beautiful lotus leaf scales. From different angles, there are different senses, different refraction and 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.
07. Eyebubbles: The bubbles in amber are mostly round, and the bubbles in pressed amber are mostly long and flat. 08. Ultraviolet irradiation: Put amber under the money detector, it will be fluorescent, light green, green, blue, white and so on. Amber and Jin Po have the most obvious discoloration, while blood amber and beeswax have no obvious discoloration. The more transparent it is, the more obvious it is, and the plastic will not change color. Friendly reminder: don't test under strong light, the effect is not obvious. ) 09. Aroma: Amber has a faint smell, which can hardly be smelled when rubbed, or it can't be smelled at all, but amber with skin will produce fragrance when rubbed, and Xiangpo will produce fragrance when rubbed. Amber only gives off a loose fragrance when it burns. (Friendly reminder: It's better not to sniff around. ) 10. Sound test: Amber beads without inlay will make a soft and slightly dull sound when rubbed gently in the hand, if the sound of plastic or resin is crisp. 1 1. Friction with static electricity: amber can attract small pieces of paper after rubbing on clothes. (Friendly reminder: except copy paper) 12. Expensive 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. Even if other methods are true, they will do some harm to amber more or less. The above identification methods can't be used alone, but multiple detection methods should be adopted, and layers should be separated to eliminate the false and retain the true! But the most reliable identification method is to go to the geological department for testing in person! There is no such thing as "can't be tested"-even if the so-called "Middle East beeswax" appeared in China in recent years is not hot enough to cause the inspection department to re-examine, at least it can tell the buyer the actual composition of Middle East beeswax.