2. 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.
3. 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.
4. Wash nail polish lotion: 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.
5. 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.
6. Visual inspection: 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.
7. Eyebubbles: The bubbles in amber are mostly round, and the bubbles in pressed amber are mostly long and flat.
8. ultraviolet irradiation: put amber under the money detector, it will have fluorescence, 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.
9. Aroma: Amber has only a faint smell, and it 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.
10. Sound test: Amber beads that are not inlaid will make a soft and slightly dull sound when rubbed gently in the hand, and the sound will be crisp if they are plastic or resin.
1 1. Friction with static electricity: amber can attract small pieces of paper after rubbing on clothes.
12. Cost appraisal: Take it to CMA Jewelry Appraisal Center to measure refractive index, density, etc.