Saline water test method: the density of amber is between 1.05- 1. 10. In 14 (salt: water) saturated brine, amber, light plastic and resin can float, while ordinary plastic, glass, acrylic and bakelite can sink.

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.

Knife cutting needle test: amber will be pulverized when it is cut by paper cutter, resin will fall off in pieces, plastic will be rolled, and glass will not be cut. 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.

Medicine for washing nail polish: Wipe the amber surface repeatedly with a cotton swab, and there is 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.

Handle: Amber is a neutral organic gem, which is not very hot in summer and not too cold in winter, so it is very gentle. Imitation with glass or chalcedony will feel cold and heavy.

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.

Bubbles: Bubbles in amber are mostly round, while bubbles in pressed amber are mostly long and flat.

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.

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 friction will produce fragrance. Amber only gives off a loose fragrance when it burns.

Beeswax, or beeswax, is a variety of amber. Opaque or translucent amber is called beeswax, which is a liquefied stone of resin and amorphous. There is no fixed internal atomic structure and external shape, and the fracture surface is often shell-shaped, and the refractive index is between 1.54 ~ 1.55, so birefringence is not applicable. According to the physical test, the specific gravity of beeswax is between 1.05- 1. 10, which is only slightly larger than water. It is a precious ornament.