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The following article will provide the reader with some useful insights into the landscape of Silver Chains, not only because the latter is the metal we prefer, but also to try to shed light on the main misunderstandings that arise when buying Silver Chains.
When it comes to Silver, the most commonly used terms are Pure Silver, 925 Silver also known as Sterling Silver, Silver Plating. If we want to be sure that what we are buying is a certain quality of silver and not another, we need to pay attention to which type we are dealing with:


Let’s take a look at the differences between Pure Silver, 925 Silver, also called Sterling Silver, Silver Plating.


Pure Silver: where does it come from?


Silver is one of the most sought after metals due to its exceptional physical properties and is found in its raw state mainly in Australia, Bolivia, Chile, Peru, Poland and Serbia, where deposits are large enough to allow it to be mined at low cost. Silver is generally found in the form of grains, flakes or nuggets. Although it is mined in its purest form, it is not yet usable because of its coarseness and the coexistence of other minerals. To remedy this, a special refining process using heat and chemical processes is carried out to obtain pure silver, which is commercially classified as 999.99 percent pure. This means that 999 parts out of 1000 are pure silver, also called Fine Silver, but it contains percentages of other metals, the amount of which is the minimum allowed to be classified as Pure Silver. Croma Catene is a proud member of Responsible Jewellery Council (RJC) which fundamentals are the ethic, social, and Human Rights connotation and deal only with Metal Banks that guarantee the sale of C.O.C Silver





925 Silver or Sterling Silver


Silver 925 or Sterling Silver are specific terms used to describe silver alloyed with other metal alloys: they specify that the silver content in a given item is 925%, with the remaining percentage made up of other metals. The 925% designation facilitates robust manufacturing processes and ensures that there is a sufficient percentage of silver to allow the chain to have greater ductility and malleability, which are critical aspects of making any silver product. Typically, 925 silver has been alloyed with copper, a metal that is susceptible to oxidizing agents and transfers this property to the silver to which it is bonded. This means that oxygen or other natural agents will react with it and cause its surface to darken, resulting in dark colors such as black or green. If you know someone who wears a copper bracelet for medical therapy, it will not be difficult to notice a green color where the skin has been in contact with the copper-a result of the skin’s moisture reacting with the copper.
It is important to mention this because copper is one of the best metals to combine with sterling silver, exposing it to tarnishing if care is not taken in storage.


Silver Plating


The term Silver Plating describes the process of coating chains, jewelry or everyday objects by coating a base metal such as copper or brass with a very thin layer of 999.99 Silver. The thickness of the coating can range from 1 micron to 10 microns.




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