Traditional Culture Encyclopedia - Traditional festivals - What's the difference between pure silver and silver plating?
What's the difference between pure silver and silver plating?
1, with fire:
The flame turns green after burning for 5- 10 seconds, so it is a silver-plated ornament.
If the color of the fire remains the same, it is made of pure silver.
2. Discoloration after burning:
The surface of sterling silver jewelry will turn black, and the original color will appear if it is silvered.
3, look at the hardness:
Silver plating is softer than pure silver, and the hardness of silver is lower than copper, but higher than lead and tin.
Tested with a pin, the pin slipped and there was no trace on the surface, which may be silver-plated jewelry; The marks are obvious, which may be silver-plated ornaments.
There are traces, but they are not obvious. They may be sterling silver ornaments.
4. Weighing:
Silver jewelry is generally heavier than silver jewelry.
Extended data:
1, 925 sterling silver type:
(1) Platinum plated 925 sterling silver:
Silver is an unstable metal that will turn yellow and black due to external factors. There is no way to stop it from changing in the world at present. Plating platinum (palladium and rhodium) on 925 silver can effectively isolate 925 silver from the outside air. This platinum effect can generally last for 4- 12 months according to the degree of protection of jewelry, and then it will become the effect of silver itself.
(2)925 pure silver high polishing:
When the silver mine was first mined, it shone beautifully bright white (milky white), but once it came into contact with the air, it would soon turn silver (beige white). After the finished product is produced, the dazzling bright white when silver is just mined can be reproduced by high polishing or bright silver plating.
But it can't be maintained in air, and it will turn back to silver in about 15 days. This bright white is just a good-looking appearance. If it is sold at the counter, please seal it with plastic film.
(3)925 pure silver (Thai silver):
In order to cover up the easy discoloration of silver, another method is to directly sulfide silver so that it cannot turn yellow and black. Silver sulfide presents a primitive and peculiar effect. This method originated in Thailand, also known as "Makasit", and this Thai silver is usually used in men's jewelry.
(4)925 silver (pure silver):
The alloy of 92.5% silver and 7.5% copper is an internationally recognized standard for pure silver. Platinum (rhodium) is usually plated to prevent yellowing and blackening due to oxidation or vulcanization. 925 silver without platinum plating is called "plain silver".
(5)925 silver (white rhodium, pure silver):
925 silver is pure silver with 925% silver and 75% copper, which is an internationally recognized standard for pure silver. It is different from 9.999 silver because 9.999 silver is high in purity and soft, so it is difficult to make complicated and diverse ornaments, while 925 silver can. At present, silver is usually plated with platinum (white rhodium) to prevent silver from turning yellow and black under oxidation or vulcanization. Silver without platinum plating is called pure silver.
2,925 sterling silver classification:
(1) white iron ore:
Mulcaster, as its name implies, is an ornament made by traditional Thai silver jewelry processing technology. The basic process of Marcasite is to etch the surface of silver ornaments, and then polish them to form black lines, so that silver ornaments have a unique three-dimensional effect.
White iron ore is generally high in silver content, which is 999% silver content. Thai silver ornaments are exquisite, more like works of art, beautiful, generous and fashionable. Thai silver jewelry is deeply loved by fashion people because of its simple style, matt and old-fashioned taste.
There are also some processes that imitate Thailand to vulcanize 925 silver into "ancient silver effect", also known as "Makasit". The general process of marcasite domestic production is relatively simple, so the price is lower than that of 925 silver-plated platinum!
(2) Tibetan silver:
Tibetan silver is an alloy with less silver produced in Tibet and Nepal. Its main components include nickel and copper, which is the elegant name of white copper (copper-nickel alloy). Traditional Tibetan silver is 30% silver and 70% copper. Because the silver content is still too low, there is no silver in the market, and it has been completely replaced by white copper.
At present, the silver content of most Tibetan silver in the market is only about 15%, and some of them contain almost no silver, just white copper alloy handicrafts.
Tibetan silver is a traditional silver ornament in China, which is produced in Tibet and its surrounding areas. It has rich religious connotation and is the carrier of Tibetan people's longing for survival and life. Characterized by exquisite patterns, but not too particular about materials.
(3) Miao Yin:
Miao Yin is not pure silver, but a kind of silver metal peculiar to Miao people. Its components include silver, white copper and so on. Its silver content is about 30%.
These handmade Miao Yin may have some flaws, but the more they pass through, the brighter their luster will be if they are rubbed frequently, which is their unique charm of simplicity. In fact, Miao Yin and Tibet are similar.
Baidu encyclopedia -925 sterling silver
Baidu encyclopedia-silver plating
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