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 Replies: 11 / Views: 3,176 |
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Valued Member
United States
89 Posts |
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Valued Member
Italy
91 Posts |
I have the 2010 coin. It is very beautiful. I bought it directly from the Austrian miint e-shop.
They only have 2008, 2009 and 2010 left. The other years are sold out.
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Moderator
 Australia
16808 Posts |
I don't have one yet, but I do want one (or another niobium coin from another country) to add to my Chemical Elements collection.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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Valued Member
Italy
91 Posts |
If you like silver / niobium coins, Luxembourg has its series too. Minted by Austrian mint
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Valued Member
 United States
89 Posts |
thanks. I will look into that.
i am hoping when I go to the long beach coin show next week, that someone will have these there.
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Pillar of the Community
Luxembourg
588 Posts |
I wonder when we will see the first bi- or three-color niobium coin?
Or are the coins treated to the correct color after they have been struck?
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Pillar of the Community
Germany
1238 Posts |
Yes, I have those Austrian silver-niobium pieces too. Found the first one (Hall, 2003) very interesting, also because its theme and design (with the Guldiner die) were coin/minting related. The Nb-Ag pieces from Luxembourg are nicely designed too but even more expensive. Here are two news items in English from the company that developed the technology. The first one is about the 2008 coin; the second one deals with the latest piece. http://www.plansee.com/news-2150.htmhttp://www.plansee.com/news-2395.htmSo the color is "the result of anodic oxidation, a unique procedure worldwide in the field of coin production, which was developed by Plansee. The oxide layer has only a thickness of a few billionths of a millimetre and provides the desired colour of the coin's core." Christian |
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Bedrock of the Community
Australia
21786 Posts |
Check out the 'metallium inc' website. They have over 50 elemental coins available for sale.
There is a tempting possibility to put aside numismatics for a short time and build a collection of elemental samples, with the numismatic benefit of them being coin like samples!
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Pillar of the Community
United States
2605 Posts |
They call it "coins". How deceiving!
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Pillar of the Community
Luxembourg
588 Posts |
Quote:
So the color is "the result of anodic oxidation, a unique procedure worldwide in the field of coin production, which was developed by Plansee. The oxide layer has only a thickness of a few billionths of a millimetre and provides the desired colour of the coin's core." chrisild, do you know if this procedure is applied before or after the striking? |
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Pillar of the Community
Germany
1238 Posts |
Hmm, chemistry is a mystery ... to me anyway.  But fortunately the Austrian Mint has some info about the different production phases (in German) here: http://austrian-mint.at/pres_archiv?pressId=47 So first the niobium "pill" gets its color (by means of this anodic oxidation). Then the pill and the silver ring are combined into one piece, and finally this blank is turned into a coin by the mint. Christian |
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Valued Member
United States
89 Posts |
well I finally received my first niobium coin. I bought the 2010 renewable energy. I like the overall packaging. the coin itself is no let down. I love the design of it. the only thing I was surprised at was the size. for some reason I expected it to be a little bigger.
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Replies: 11 / Views: 3,176 |
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Posted 09/18/2010 04:17 am
