How to tell whether silver is true or false?

The difference between real silver and fake silver is actually the identification of pure silver. Any substance identification must return to its own essence, which can not be separated from two aspects: physical properties, chemical properties, macro perspective and micro perspective.

1. What are the characteristics of pure silver and counterfeit pure silver?

Characteristics of pure silver: the higher the purity, the whiter the silver, the bright and delicate surface, smooth and elegant, good retouchability and ductility, and will not rust, but it can be oxidized and discolored by sulfide in the air.

Characteristics of forged pure silver: Forged silver is generally made of copper, brass, white copper, lead, tin and aluminum. Their characteristics are as follows: red copper: purple appearance, black stubble and green embroidery.

Brass: yellow in appearance, stubble green and embroidered green.

White copper: appearance gray, stubble brick gray, green embroidery.

Lead: grayish blue, soft, with nail marks.

Tin: silvery white, soft, and can be scraped with nails.

Aluminum: white gray, soft and light.

Second, how to identify true silver

1, look at the color

The higher the purity of silver jewelry, the whiter the silver, and the surface looks even, shiny and polished. If it contains lead, the jewelry will appear bluish gray; If it contains copper, the surface of jewelry will be rough and the color will not be moist. According to the characteristics of pure silver and counterfeit pure silver mentioned above, you can distinguish one of them. )

Step 2 consider

The density of silver is slightly higher than that of common metals, about 10.5g/cm? . Aluminum is light, silver is heavy, and copper is neither light nor heavy. It can be preliminarily judged whether it is silver by weighing. If the jewelry is large and light, it can be preliminarily judged that the jewelry belongs to other metals.

3, check the hardness

The hardness of silver is lower than that of copper, but higher than that of lead and tin, so it can be tested by marking jewelry in an inconspicuous place with a pin. If the needle slips, it is difficult to leave traces on the surface, which can be judged as copper jewelry; If it is made of lead and tin, the trace is obvious; If the object has traces but is not obvious, it can be preliminarily judged as silver jewelry.

4. Listen to this poem

Hit the floor, sterling silver jewelry, no elasticity. The lower the color, the lower the sound, the higher the sound and the higher the rhyme. If it is made of copper, its sound is high and sharp, and its rhyme is short and short; If it is made of lead and tin, the sound of falling to the ground is dull, short and inelastic.

I am the most beautiful woman, just for you to know how to hide the pot.

I have a silver pot that is enough to comfort my leisure. Watch the flowers fall in bloom and enjoy the scenery of the four seasons.