1, look at the color of jewelry: 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.

2. Jewelry weight: The density of silver is slightly higher than that of ordinary metal. 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.

3. Check the hardness: the hardness of silver is lower than that of copper, but higher than that of lead and tin. You can use pins to test the inconspicuous parts of jewelry. 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 the rhyme: hit the floor, a piece of sterling silver jewelry, no elasticity, the voice is "boo boo boo". 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.

Extended data:

Identification of silver:

(1) seal. Silver ornaments are generally stamped with the English abbreviation of silver ("S" or "Sterling"). The mark of standard silver is S925. The imprint of foot silver is S990. But there are also many countries that don't print paper money on silver ornaments.

(2) color. Silver ornaments are mostly yellowish silvery white with a soft metallic luster. Due to easy oxidation, the color will turn dark yellow and white after a long time.

(3) weigh it. The density of silver is10.53g/cm3. Smaller than platinum and gold, it won't fall off by hand. Steel needles can be marked or bent. In this way, it can be distinguished from platinum jewelry, K gold jewelry or imitation silver jewelry.

(4) Acidity test. Silver will change color or even dissolve when it meets any acid. If a drop of concentrated hydrochloric acid is dropped on the inside of silver jewelry, white moss-like silver chloride precipitate will be formed immediately. Other precious metals do not have this phenomenon.

(5) Phonology. Standard silver jewelry has a dull sound after landing, and does not bounce or roll.

References:

Baidu Encyclopedia-Silver (Chemical Element)?