1. Identification method of burning silver: first put the silver ornaments on the gas stove to burn red, and then put the red-hot silver ornaments in cold water. Pure silver is white, and impure silver will turn black. This method can only identify whether the purity of silver reaches 99%, and can identify small pieces such as true and false bracelets. Pure silver has a melting point of 960 degrees, so you can safely burn it boldly.

2. Ask the gold and silver processor to help identify the purity of silver: firstly, the purity of silver can be preliminarily identified through the appearance characteristics such as appearance brightness and fish scale spots; If you are not sure about the appearance, you can melt the silver to see the color change of the silver block when it is heated, the state after melting, and the surface brightness and shape after cooling.

3, the local quality and technical supervision bureau of gold jewelry testing department for instrument identification.

4, observation, look at the color of silver: the higher the purity, the whiter the silver, and the jewelry 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.

5, weighing method, weighing the weight of silver ornaments: the density of silver is slightly higher than that of ordinary metals. Generally speaking, "aluminum is light, silver is heavy, and copper is not light or heavy." Therefore, 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.

6. Specific hardness and hardness inspection: The hardness of silver is lower than that of copper, but higher than that of lead and tin. It can be checked by marking the 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.

7. Listening to the rhyme: hitting the floor, a piece of sterling silver jewelry, no elasticity, the voice is "Buda Buda". The lower the color, the lower the sound, and the sharper and higher the rhyming sound; 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.