I use 3 different types of silver, depending on customer requirements and what I am making, but here's a quick run down on the variances.
Silver Plated
This is usually a "layer" of silver over a base metal, which can be zinc, copper, nickel, lead, steel or any combination of those. Usually this is done by "electro-plating" technique. I try to buy nickel and lead free findings wherever possible due to allergies in the case of the nickel, and the health concerns of lead exposure.
Sterling Silver
Is 92.5% silver, with the rest being made up of other materials, usually copper. This is why really old and un cared for pieces sometimes have a green tinge. Usually marked with the word Sterling, or 925, or may have a lion mark. Because a lot of my sterling silver jewellery is fine I may not have the ability to put this mark on.
Fine Silver
Is 99.9% silver, and because of this is a lot softer than Sterling. Ok for Jewellery and delicate pieces, but not for your cutlery :) I usually stamp my "Pure" range of Fine silver jewellery with 999, however occasionally I forget!
All silver products will tarnish when exposed to air and water, So keep in a sealed bag or box when not being worn, and clean often.
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