About 25 I guess around 6x4mm
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I have to agree with Wallace that anyone can add a tag but it doesn't actually mean anything and in some cases buyers are duped by unscrupulous sellers. I've never found any of my customers look for tagging but I tend to even have my underweight items hallmarked if I'm sending in a big batch to make up the min quantity price.
I also found this on marking
Argentium has its own hallmark and is stamped .925 as it is still a sterling silver, although you can buy it at the higher standard of Britannia silver if preferred and it will be hallmarked as such
Which is another area customers need to be educated on - it has absolutely no basis in reality. I could stamp silver items "made entirely of fish" and it still wouldn't make it the case.
"Assurance" tags give a false sense of security. Customers invariably see a 925 stamp (missing the brass colour poking through the plating on some imports) and declare it to be hallmarked.
As for short-changing on 930 vs 925, the 925 hallmark denotes the *minimum* fineness - and given the value of the materials, the difference between 925 & 999 is negligible. Market it as tarnish-free, fine - but I don't believe that the 0.5% extra silver content represents a valid USP.
Here you go - http://www.argentiumsilver.com/certified-silver-purity
You can apply to be a licensed user of the winged unicorn mark. It still isn't a hallmark though.
There's an optional Britannia hallmark that covers 958 too.
Completely incorrect - Argentium uses around 1% germanium *and copper as well*. As it's only the precious metal content that is relevant to hallmarking, you could put any other metal in there to alloy it to make up the remaining 7.5% - cobalt, zinc, lead, nickel... Some of them won't alloy, some of them will give rise to strange intermetallics (usually brittle), some of them are a bad idea for REACH.
Sterling silver is by definition 925 parts silver per 1000, by weight. The rest is *often* copper, but not necessarily.
Peter Johns' patent on Argentium which clearly details the makeup of it and several other germanium-bearing alloys: https://www.google.com/patents/EP1888797A1?cl=en
I would be concerned re your supplier Argentium 930 is no longer produced
I have enough to be going on with for the next 6 months.
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Argentium uses upto 3% argentium he states. I've read the patent. Slighlty of topic here now lol ive bought a .930 stamp anyway, thanks for all the input.
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