1, surface observation method

Observing the pearl surface with a ten-fold magnifying glass, we can see that the sand dune-like shape blown by the wind is a real pearl; Think of the uneven shape of the egg surface as an artificial pearl.

2. Friction method

Rub two pearls together. Real pearls are rough and fake pearls are slippery.

3, solution immersion method

Shake the pearl in acetone solution for a few minutes, the real pearl will glow as usual, and the fake pearl will disappear.

4. Check the cross section of the pearl.

The cross-section of a true pearl is concentric.

Distinguishing true pearl powder depends on:

Texture: the powder is white, uniform in color and free of impurities.

Handle: It feels delicate and smooth, and is easily absorbed by the skin.

Smell: It smells slightly fishy, but there is no other peculiar smell.

Fake pearl powder: Fake pearl powder is generally made by heating mussel shells with alkaline water and lime, then removing the black on the surface, crushing, sieving and packaging.

Texture: take a small amount of powder with your fingers, spread it out in the sun or light and observe it carefully, and you can find obvious flash. This is mica.

Color: obviously whiter than pure pearl powder.

False pearl powder is mixed with hydrolyzed animal protein powder, and mica will stick to the stomach after long-term use.