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What is Argentium Sterling Silver? Jewelry Making Made Easy!

Updated on December 22, 2013
No firescale after casting with Argentium Sterling vs. traditional sterling silver
No firescale after casting with Argentium Sterling vs. traditional sterling silver | Source

What is Argentium Sterling Silver?

Argentium Sterling Silver is a proprietary Sterling Silver that was developed at as a result of research done by Peter Johns at the Art and Design Research Institute, School of Art & Design, Middlesex University.

The metal is a modern alloy of sterling silver which is traditionally 92.5% silver and 7.5% copper. The alloy differs from traditional sterling silver in that a very small portion of the copper is replaced with metalloid germainium. Because the alloy is still 92.5% silver it can still be referred to as sterling silver.

The advantages of Argentium Sterling Silver

Using Argentium Sterling Silver has several advantages, here are a few:


Firescale has always been a problem for those working with sterling silver. Firescale occurs when when the copper in the sterling silver oxidizes below the surface of the metal causing a reddish or dark black discoloration. Because this discoloration is not simply on the surface of the metal, it cannot easily be removed.

Often large scale manufacturers of jewelry are required to plate the surface of the the sterling silver in order to cover up the firescale. Unfortunately plating can change the appearance of the metal and can cause problems for individuals with specific metal allergies.

Because the germanium oxidizes faster than the copper in the Argentium Sterling Silver alloy, the problem of firescale is eliminated.

Tarnish Resistance:

Another problem that traditional sterling silver has is its tendency to tarnish. Due to a clear germanium oxide layer that forms over the top of the Argentium Sterling Silver alloy, the copper is protected somewhat to exposure to oxygen which creates a much slower rate of tarnish.

Increased ductility and malleability:

Increased ductility or alloys ability to be stretched into a wire, is another advantage that Argentium Sterling Silver has over traditional sterling silver. Malleability, or the material's ability to form a thin sheet by hammering or rolling can also be increased by proper quenching of the metal after heating.

Precipitation and Heat hardening:

Because pure silver is such a soft metal, it is seldom used for jewelry. This is why most jewelry is made of sterling silver. The copper that is added to sterling silver makes the alloy harder and more durable. Argentium Sterling Silver can even be made harder, in some cases nearly twice as hard, by precipitation or heat hardening

Easier Fusing:

Fusing has traditionally been a difficult task using sterling silver. Most jewelry created by fusing have usually been made using pure silver or high carat gold. The problem with using these metals is that they are very soft making them easily damaged when used in jewelry.

The main reason that traditional sterling silver is difficult to fuse properly is because the surfaces must be very clean. When traditional sterling silver is heated, a layer of copper oxide is immediately formed on the surface of the alloy. This problem is eliminated when using Argentium Sterling Silver.

Allergy Resistant:

I can't officially say that someone that has allergies to sterling silver is going to be able to wear Argentium, however my preliminary studies have shown that it is quite likely that a person that is allergic to Sterling silver will, in fact, be able to wear Argentium Sterling Silver. What I believe is the difference is the Argentium Oxide layer forms on the outer layer of the jewelry.

The most common metal allergy by far is to Nickel. Nickel is commonly used as a base coating when plating sterling silver jewelry to protect the jewelry from tarnishing. When the very thin outer layer is worn off, the nickel layer is exposed leaving the wearer at risk of a nickel allergy reaction. Because there is no firescale problem with Argentium Sterling Silver, there is no need to plate the Argentium Sterling.

Another metal that people are sometimes allergic to is copper. Copper is used in creating both 10K-23K gold jewelry as well as sterling silver jewelry. If the wearer is allergic to copper, often the wearer finds themselves only able to wear 24K gold or some other metal. My tests as well as tests done on others indicate that someone that normally can only wear 24K gold, may able to wear Argentium Sterling Silver.

What Has Been Your Experience?

Have you ever had any experiences with Argentium Sterling Silver? I would love to hear of your experiences both good or bad.


So, what is Argentium Sterling Silver? It's a wonderful proprietary sterling silver that has properties that are quite a bit different than standard sterling silver. Tarnish resistance, ease of fusing and workability, and allergy resistance are just a few of the wonderful properties of Argentium Sterling Silver


Submit a Comment

  • profile image


    5 years ago

    I made the heart necklace from the tutorial on, Wired Up Beads, for argentium wire and I love it. I want to make more jewelry with it, but I cannot seem to find a book that teaches it. Can anyone give me information on how to find a book that will give more instructions for the use of this wonderful wire. Thank you

  • profile image

    Silver Jewelry 

    6 years ago

    The blog was absolutely fantastic! Lots of great information and

    inspiration, both of which we all need!b Keep 'em coming... you all do

    such a great job at such Concepts... can't tell you how much I, for

    one appreciate all you do!

  • profile image


    7 years ago

    I never even heard of argentium before I read this article. How informative. I started out just looking for a some jewelry for the ol wifey, but end up learning about it instead! Pretty good deal! haha. Keep up the good work, i'll be back for more. Oh, and if anyone is interested, I found an awesome jewelry site. Has really decent priced rings and whatnot. Just got a sterling silver bracelet for wifey at I wonder if they have any Argentium stuff?!

  • Reynold Jay profile image

    Reynold Jay 

    7 years ago from Saginaw, Michigan

    It all makes good snse to go with this. Welcome to HUB writing. I enjoyed this very much. You have this laid out beautifully and it is easy to understand. Keep up the great HUBS. I must give this an “Up ONE and Useful.” I'm now your fan! RJ

    Based upon this HUB, you might enjoy…

  • wiseblueberry profile image


    7 years ago from Wilmington, NC

    That was an interesting read, I wish Argentium sterling silver was more common than it is. I've got a few pieces of jewelry that are Argentium sterling, and they are incredibly tarnish resistant compared to regular sterling.


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