Silver is a soft metal, of which enoughjust create products of any complexity and different sizes. It is often mixed with copper to make it stronger. Since ancient times, a mixture of these metals was used to make coins. The test at that time was the 500th (50 percent silver, 50 copper). However, more valuable coins were also created, for example, silver was used, sample 925, which was valued more. Often such an alloy was taken to create exceptional commemorative coins and jewelry.
Nowadays, 925 test of silver has in itsalloy 7.5 percent copper. Such metal is suitable for creating many jewelry - rings, necklaces, bracelets, brooches and much more. Also these products are quite popular, because they are inexpensive and affordable for many people. Putting them on the beach in the summer is not recommended, because they are often lost, which can not but please people with metal detectors. However, not everyone knows what to do with such findings. And after all 925 the test of silver costs three times more expensively, than usual.
Science and silver
However, this alloy is used not only forthe creation of beautiful gizmos, and he also found application in science. Especially demanded is 925 silver sample because of good electrical conductivity. In addition, this metal is used in photography, when creating mirrors, where silver is preferable to aluminum for better reflection. Sometimes this metal is used to disinfect water.
Allergic reaction
Some people are allergic to silver. Therefore, use of such dishes is not recommended. Dressing products from this metal to small children is also not worth it.
Samples of silver. How are they calculated?
At present, there is a metrica system that calculates the percentage of silver per 1000 units of that alloy in which it is part. This means that 925 silver sample in one kilogram contains 925 grams of silver, and the rest is copper. Until the beginning of the twentieth century, there was a spool system. Often it was possible to notice on the coins the words "spool 2 shares 10.5". The whole system was built on a unit equal to 96 goldsmiths - pound. In addition to 925 tests, there are other, lower. For example, 800, 830, 875, which are mainly used to create silverware and dishes.
Many people invest their money in silvercoins, because the cost of investment coins every year is higher and higher. However, everything depends on the world price, which determines the value of precious metals. On each product of such an alloy should be finely written sample. Most often without a magnifying glass it can not be seen, but it is available, because that's how you can distinguish a precious metal from a fake.
