How to inspect sterling silver and how to identify sterling silver?

1. Look at the color: the higher the purity, the whiter the silver, and the surface of the jewelry looks uniform and shiny, with polish. If it contains lead, the jewelry will take on a blue-gray color; If copper is contained, the surface of the jewelry will appear rough and the color will not have a sense of moisture.

2. Weight: **The density is slightly larger than that of common metals, generally speaking: aluminum is light, silver is heavy, and copper is not light and heavy.

Therefore, the weight can be preliminarily judged whether it is **. If the jewelry is large in size and light in weight, it can be preliminarily judged that the jewelry belongs to other metals.

3. Check the hardness: **The hardness is lower than copper, and larger than lead and tin, and you can use a pin to scratch the inconspicuous place of the jewelry for testing, if the needle is slippery, it is difficult to leave traces on the surface, it can be judged to be copper jewelry; If it is lead and tin texture, the traces are obvious and prominent; If there are traces of the physical object and it is not obvious, it can be preliminarily judged to be ** jewelry.

Fourth, listen to the rhyme: sterling silver jewelry is loud, no elasticity, and the sound is "porphyry". The lower the color, the lower the sound, and the sharper and higher the voice, the higher and rhyme; If it is copper, its voice is higher and sharper, and the rhyme is rapid and short; If it is made of lead or tin, the sound of throwing the ground is dull, short, and has no elasticity.

Method 1: Look at the color of the jewelry, the higher the purity of the silver, the whiter and brighter, and the surface will shine evenly.

If it contains lead, it will be blue-gray. If it contains copper, it will be rough and dull.

Method 2: Weigh the weight of the jewelry, aluminum is light, silver is heavy, and copper is not light and not heavy. Put it on your hand and weigh it, and you can preliminarily judge that it belongs to other metals if it is large and lightweight.

Method 3: Check the hardness, draw the pin to the bracelet, the surface is basically copper, the surface traces are very deep for lead, and there are traces but not too deep to judge as silver.

Method 4: Listen to the sound rhyme, the sound of the silver bracelet is loud, the sound of copper is higher and sharper, and the sound of lead is shorter and faster.

Precautions: Silver ribbons will turn black after a long time, which is normal. At the same time, do not wear it with precious metals, otherwise it is easy to deform.

Methods for identifying sterling silver jewelry:

1. Acid test: silver will change color or even dissolve when encountering any acid. If a drop of concentrated hydrochloric acid is placed on the inside of the silver jewelry, a white moss-like silver chloride precipitate is immediately formed. This is not the case with other ***.

2. Sound rhyme: The sound of standard silver jewelry is dull after landing, no bounce, no rolling.

Extended Information; Tips for identifying silver jewelry:

1. Look at the color:

Just as the real-name custom diamond ring of Levis "in my name, crowned by your fingers, accompanied by you for a lifetime, accompanied by a lifetime" looks gorgeous and dazzling, really good things always look comfortable and present a soft luster.

When you get a piece of sterling silver jewelry, your first instinct should be to look at the color. Sterling silver jewelry is mostly a silvery-white color with a slight yellowish tinge. The higher the purity of sterling silver jewelry, the whiter it appears. And the surface is delicate and evenly shiny.

2. Listen to the voice:

Listening to sounds, it's a way to identify a lot of things. Some things are true if they have a crisp sound, some things are true if they are dull, some are true if they are loud, and some are true if they are small. When standard sterling silver jewelry hits the ground, the sound is muffled, unlike something that bounces up and doesn't roll.

If your sterling silver jewelry doesn't react to the above and is something else, then you have to doubt its authenticity.

1) Look at the color (also known as looking at the noodle file) test: the higher the purity, the whiter the silver, the delicate and uniform shiny noodle file, and there is polish. If it contains lead, the dough is tidal with a blue-gray tinge; If it contains copper, the dough will appear rough and rotten, and there will be a feeling of dryness.

Although there is "black rust" on the surface, the oxidized ** is black and bright, while lead, tin, and white copper are not luster, and their color is twilight.

2) Weight: **The density is slightly larger than that of common metals, generally speaking: "aluminum is light, silver is heavy, and copper is not light and not heavy."

Therefore, the weight can be preliminarily judged whether it is **. If the jewelry is large in size and light in weight, it can be preliminarily judged that the jewelry is other metals.

3) Check the hardness: **The hardness is lower than copper, and larger than lead and tin, so use a pin to scratch the surface of the real object for testing, if the needle is slippery, the surface is difficult to leave traces, it can be judged as copper jewelry; If it is lead and tin texture, the traces are obvious and prominent; If there are traces of the physical object and it is not obvious, it can be preliminarily judged to be ** jewelry. Pure ** jewelry is pulled by hand, and it can be deformed by folding.

4) Listen to the sound rhyme: if the jewelry is high quality, there is no rhyme, no elasticity, and the sound is "porphyry". The lower the color, the lower the sound, and the sharper and higher the voice, with rhyme; If it is copper, its voice is higher and sharper, and the rhyme is rapid and short; If it is made of lead or tin, the sound of throwing the ground is dull, short, and has no elasticity.

5) Look at the stubble to determine the color: cut off the ** jewelry, look at the color of the stubble, if the stubble is white and cotton, the surface of the jewelry is smooth and delicate, and the color of the surface after oxidation is black and bright, and it can be concluded that its color is about 98; If the stubble is thick and soft, slightly red, the color is about 95; The stubble is white and grayish, slightly reddish and the color is about 90; It is hard to bend by hand, the stubble is pale red or gray, and its fineness is about 80; The color is about 70, the surface is white and yellow, dry, the stubble is reddish and yellow, and the bending is hard; If the stubble lipstick is black in the middle and black in the yellow, its color is below 60.

6) Characteristics of forgery: Forgery is generally made of red copper, brass, white copper, lead, tin, aluminum, etc., and its characteristics are: Red copper:

The appearance is purple-red, the stubble is black-red, and the raw green is embroidered. Brass: yellow in appearance, green in stubble, green embroidery.

White copper: grayish white appearance, gray stubble bricks, green embroidery. Lead:

Gray-blue, soft, with nails can be scratched. Tin: silvery-white, soft, with nails can be scratched.

Aluminum: White-gray, soft and light.

Methods for identifying sterling silver:

1.Look at the imprint.

Silver jewelry is usually printed with the English abbreviation of silver, what are the common marks? The mark of standard silver is S925, and the mark of 99 silver is S9990, and regular merchants will mark silver jewelry in accordance with this regulation, but it is not excluded that other merchants will imitate it, so please continue to look down.

2.Look at the color.

Silver jewelry is mostly slightly yellow silver-white, is a relatively soft metallic luster, this is because of oxidation in the air and formed, the new sterling silver jewelry color should be silvery-white, look to be shiny, meticulous workmanship, most of the high fineness is **, the higher the silver content, the better the color will be, most of the silver jewelry without metallic luster is indiscriminate.

3.Check the weight and hardness.

The density of silver is gram cubic centimeters, the same volume of silver, **, platinum, the weight of silver is the smallest, there is no feeling of falling when you use your hand, you can scratch traces on the surface of silver jewelry with a steel needle, and silver jewelry is easy to change shape, this is because the hardness of silver is smaller than steel, and the hardness of lead, tin and other metals is greater.

4.Nitric acid dissolution method.

Silver encounters any acid, its color changes, and even dissolves. If a drop of concentrated nitric acid is dropped on silver jewelry, a white silver oxide precipitate will be generated immediately, while other metals do not have such characteristics, but this method has certain damage to silver jewelry and is not recommended.

Distinguishing Silver: 925 Silver: refers to silver containing silver, which is recognized as the standard for pure silver in international standards. 100% silver is soft, cannot be formed when made, inconvenient to make silver jewelry, and is relatively easy to "oxidize", commonly known as "discoloration".

Plain silver: In the industry, 925 silver without platinum plating (i.e. white rhodium, called platinum in the industry) is called "plain silver". Plain silver is relatively easy to oxidize in the air.

A large proportion of the most advanced 925 silver products on the market are plain silver in order to reduce the bottom cost. After gold plating, it can delay the yellowing and blackening of silver under oxidation or sulfidation.

Thai Silver: A Thai specialty, the standard is also a silver content of 925. The appearance lacks brightness, and pursues an "ancient" and "old" "ancient silver" effect. Compared with 925 silver plated with platinum jewelry, due to the lack of a wide public base, compared with 925 silver, ** is lower.

Tibetan silver: generally does not contain the composition of silver, is the elegant name of white copper (copper-nickel alloy), the traditional Tibetan silver is 30% silver plus 70% copper, but even such a traditional process of "Tibetan silver", the market has not seen, most of them are completely replaced by white copper.