Iron jewelry is worn on the skin surface for a long time, and it will be oxidized when it comes into contact with moisture in the air or sweat secreted by human body, which will lead to the rust problem of iron jewelry, while silver jewelry will also be oxidized when it comes into contact with air, but compared with iron jewelry, it is far less serious, only the color is gray.

Silver has a low density and a soft texture, while iron has a high density and a hard texture, which will inevitably lead to collision and friction when strung together, resulting in scratches and even fractures of silver jewelry.

Silver and iron jewelry can also be preserved under the premise of oxidation, just avoid contact with oxygen and water. It is worth mentioning that the best way to maintain silver jewelry is to wear it every day. The color of silver jewelry is gray due to oxidation, but it can also produce natural and moist luster due to the secretion of oil by human body, which is also a supplementary function.

Extended data:

Identification method:

Look at this color.

The higher the purity, the whiter the silver, and the surface of jewelry 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.

consider

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.

Check 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.

Listen to this poem

Hit the ground, sterling silver jewelry, no elasticity, the sound is "bam bam". 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.

Reference source: Baidu Encyclopedia-Sterling Silver Jewelry