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 Replies: 26 / Views: 3,789 |
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Valued Member
United States
149 Posts |
Pretty cool. Not sure why they're still trying to figure out tungsten, though. The Chinese are already making gold eagles out of it.
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Pillar of the Community
 United States
1215 Posts |
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Pillar of the Community
United States
589 Posts |
Quote:
I want to see them try using Uranium or Fluorine I wouldn't be mentioning U on the internet if I were you. Let alone wanting it in bulk metallic form. Who knows what government agencies are watching this forum... However, on a side note: I do believe there were some German medals issued in metallic uranium years ago. Not sure how legal they are to own, but I digress. Quote:
A few more things coins could be made of is 75% Potassium Nitrate, 15% charcoal and 10% Sulfur. Ground together and made into coins.
And so little residue if they get near fire. Gunpowder. Nice. Someone could market it and make a fortune. Would appeal to the prepper community. True "survival money" |
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Pillar of the Community
 United States
1888 Posts |
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I wouldn't be mentioning U on the internet if I were you. Let alone wanting it in bulk metallic form. Who knows what government agencies are watching this forum.. It's not illegal to own ordinary elemental uranium. This has been discussed on various forums many times. It's actually possible to buy small samples of it online occasionally. Yes, there are collectors of *everything*, including Nature's elements. U-238 is a very hard metal; difficult to fabricate. It is not harmful in its pure form, as long as you don't carry it around in your pocket. But it oxidizes easily, and that is the form which is dangerous, especially if breathed or ingested. U-235, the much scarcer fissionable variety, is a different 'matter' altogether. |
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Moderator
 United States
23522 Posts |
SlurExe, I'm having the time of my life imagining someone trying to do something numismatic with Fluorine. It's kinda like the chemical equivalent of trying to shave a bobcat.
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Moderator
Canada
10458 Posts |
I have a beautiful piece of exonumia, with crossed geological hammers, struck on a pure molybdenum planchet. About the size of a silver dollar... I'll have to take a picture someday...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
Canada
2519 Posts |
Since they have Uranium listed in their periodic table I assumed it was okay to mention it. Glad it actually is. They mentioned planning to make them using gases, why not the one that reacts with pretty much everything  ![Can-Coins-Be-Made-Out-Of-Element-[x]?](https://www.coincommunity.com/forum/uploaded/Altaira/20150121_ScreenShot2015-01-21at3_opt.jpg) |
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Valued Member
Canada
55 Posts |
There isn't a picture of the one made from mercury. How do they make this one without it being a liquid?
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Pillar of the Community
United States
4593 Posts |
A lot of the oddball stuff is made from pressing the element with a binder... how much binder and how much element isn't said. What kind of binder - clay, plastic, etc. - also isn't discussed AFAIK.
It would be like a pokerchip with some added mercury. Handle with care.
-----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ |
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Pillar of the Community
United States
1888 Posts |
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There isn't a picture of the one made from mercury. How do they make this one without it being a liquid? Possibly by mixing it with silver. Pretty much everyone who ever had dental fillings put in before the 1970's or so, is carrying around mercury in their mouths. These two metals form a 'solid solution' called an amalgam when mixed. I'm not sure what the percentage of silver needed to render liquid mercury solid is, but it probably isn't much. It was also a common thing to do in high school chemistry classes back before the true dangers of mercury were well known, to rub it on silver coins. The coin would absorb the liquid mercury until it entirely disappeared, leaving the surface of the coin mirror-shiny and greasy-feeling. Add enough mercury, and soon the entire thing would crystallize and you could break it in half with your fingers. |
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Bedrock of the Community
United States
17884 Posts |
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How do they make this one without it being a liquid? Cast and freeze it, then you just have to keep it at -40 degrees or less. Mercury, being a liquid, will dissolve most metals into it. It used to be used as a way of gold or silver plating metal objects back before electroplating was invented. Dissolve the gold or silver in an excess of mercury to form a thin paste and then rub that on the object to be plated. The mercury paste would also bind to the surface of the object. Then heat the object to vaporize and drive off the mercury leaving a surface plating of pure gold or silver. Buff smooth. |
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Pillar of the Community
United States
1215 Posts |
If a mercury coin were worth 10 cents, would it be a Mercury dime? |
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Pillar of the Community
Russian Federation
5174 Posts |
I believe their mercury "coin" is a liquid, they're just putting it in a capsule so it doesn't flow away.
IIRC, they say somewhere that they're considering etching the capsule in some way to make the result look more like a regular series element "coin", but at the moment it's just a capsule with liquid mercury.
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Bedrock of the Community
United States
17884 Posts |
They could mold the capsule so that it has features or lettering and then when the fill it with the mercury it would still show the "features" of the coin.
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Pillar of the Community
Russian Federation
5174 Posts |
Quote:
They could mold the capsule so that it has features or lettering and then when the fill it with the mercury it would still show the "features" of the coin. That's what they're planning to do basically. |
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Posted 01/20/2015 01:06 am
