How many different kinds of metals for coins?

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Hello!
How many different kinds of metals/alloys do you know are being made for coins?
I only know a few:
Silver
Gold
Bronze
Copper
Nickel
Cupronickel
Copper-nickel-zinc
Zinc
Aluminium
Platinum
Stainless Steel
Nordic Gold

Thanks in advance.
All coins are equal, but some coins are more equal than others.
I have this coin in Virenium ...

https://en.numista.com/catalogue/pieces30590.html

and somewhere I have this coin in Tombac ...
https://en.numista.com/catalogue/pieces411.html
My collections >
http://mycoinssite.webs.com/apps/photos/album?albumid=13560800
also 13750057 also 15924495 also 15995337
http://mycoinssite.webs.com/apps/photos/album?albumid=16060326
Aluminium-bronze (quite common, actually)
Brass
Iron
Tin (e.g. Thailand)
Aluminium-zinc (Venezuela)
Billon (variable, but low purity silver)

Oddities:
Porcelain (notgeld from Meissen)
Composite (Transnistria)
Mostly one element:
Gold (most often as alloy with copper)
Silver (most often as alloy with copper)
Copper
Nickel (most often as alloy)
Iron (most often as alloy with carbon)
Aluminium (most often as alloy with copper and magnesium)
Zinc (most often as alloy)
Tin
Lead
Platinum
Palladium
Titanium
Niobium
Iridium

Alloys:
Copper-silver alloys (Billon)
Bronze (different additive elements like aluminium etc.)
Potin (antique bronze with much tin and lead)
Brass (many kinds with additive elements like zinc, nickel, aluminium, manganese)
Aurichalkum (antique brass with much zinc)
Copper-nickel
Electrum (gold-silver, silver-gold)
Steel (with many different additive elements like chrome)

many different plating, coating and sandwich combination of listed metals

Non-metals:
Fabric
Leather
Clay
Wood/paper
Polymeres (plastics)
Ceramics
sea shells
Antimony
Other non-metallics:
Bone
Cardboard
Bamboo

Mettallic:
Alpacca (aka nickel silver, maillechiort or german silver) is an alloy of copper, nickel and zinc.

And (here comes the arguing) electricity (bitcoins and other electronic money).
Just 10 options: you understand binary, or you don't.

Catalog Referee:
Coins & banknotes: Uruguay, Cuba, Bolivia, Puerto Rico,
Coins: Brazil, Curaçao, Cayman Islands, Netherlands West Indies, Saint Eustatius, Sint Maarten
Banknotes: Paraguay, Peru.
Quote: "adanieluy"​Other non-metallics:
​And (here comes the arguing) electricity (bitcoins and other electronic money).
If you want to go that far ... all matter is a state of energy :wiz:
Thanks.
All coins are equal, but some coins are more equal than others.
One missing from the previous posts: coal. I understand it was used for some German notgeld though I haven't seen any.

Will
Now I remember, in ancient America was used as coins cacao seeds and cacao fruit too
Just 10 options: you understand binary, or you don't.

Catalog Referee:
Coins & banknotes: Uruguay, Cuba, Bolivia, Puerto Rico,
Coins: Brazil, Curaçao, Cayman Islands, Netherlands West Indies, Saint Eustatius, Sint Maarten
Banknotes: Paraguay, Peru.
http://www.elementsales.com/ecoins.htm
Here, some tokens. These probably include almost all that have not been said yet.
Cobalt.
There is another forum thread here somewhere about this.
Taking a break from swapping for a while, but still interested in pre 1799 Spanish coins, I will make time for that!

Looking for pre 1783 coins
Acrylic !

https://en.numista.com/catalogue/pieces115732.html
Quote: "asimov37"​Acrylic !

https://en.numista.com/catalogue/pieces115732.html
In my opinion this kind of things are not coins.
...you can run,  but you can't hide...
How do you define a coin?
Quote: "Oklahoman"​How do you define a coin?
​A thing, issued by a legal goverment or organisation, ment to pay for a product or service. And not some fantasyobject what is made, in the first place, to suck money out of the pockets from innocent collectors...but that is my personal point of view.
...you can run,  but you can't hide...
Well...it is a coin then. Approved by a legit government. With a face value...
I say, a coin is:
1. For a person who does not know what they are, a pretty small (or big) metal disc that usually has writing on it.
2. For a person who knows about coins, the metal disc (or for example acrylic disc) but the disc has been approved by the leaders as legal to use in public stores, shopping places and ikeas. According to true measures the word coin means any object with legal tender in public use. It can be: only 1 coin minted. It can also be a non-circulating coin, commemorative coin. But certainly not a token. A 25 euro coin IS a coin. A columbian exposition half dollar IS a coin.
Quote: "Oklahoman"​Well...it is a coin then. Approved by a legit government. With a face value...
​Goodmorning,

I suggest you take some of this acrylic coins, go to a market in the issuing country, and buy yourself some food or whatever you like, for it....
...you can run,  but you can't hide...
https://en.numista.com/catalogue/pieces63765.html
Stainless steel!
You don't have to like them. But they are coins. They are lawful. They are denominated. They are in coin catalogs. They have KM numbers. It is cute how you and so many others get enraged over these matters. Don't collect it if you don't like it. Many folks here do not collect NCLT.
My, but you should see how big the coin purses are!
Quote: "Oklahoman"​How do you define a coin?
​It's funny that Numista is a site dedicated to cataloging coins, swapping coins, talking about coins; but nowhere Numista says what is a coin.
Referee for Spain, Hispania (ancient), Suebi Kingdom and Visigothic Kingdom
Quote: "zegeri"
Quote: "Oklahoman"​How do you define a coin?
​​It's funny that Numista is a site dedicated to cataloging coins, swapping coins, talking about coins; but nowhere Numista says what is a coin.
​There you have a point, how actually to define a coin, on a 100% watertight way?
...you can run,  but you can't hide...
Tantalum, from Kazakhstan.

Tombac alloy in 1942-43 Canadian nickels
Hello,
I am neither a chemist nor a scrap dealer, I would like to know how you do to determine the material of a coin or token without its documentation.
Thanks
La recherche PAR et POUR TOUS BOINC ( Cancer Climate COVID) =
https://www.worldcommunitygrid.org/research/opn1/overview.do
bigest world calculator
Quote: "CREPOSUC"​Hello,
​I am neither a chemist nor a scrap dealer, I would like to know how you do to determine the material of a coin or token without its documentation.
​Thanks
​By experience, colour, magnet, weight.
...you can run,  but you can't hide...
red fibre as used in japanese puppet states
we do not own our coins, we are merely guardians of them for future generations.
Quote: "CREPOSUC"​Hello,
​I am neither a chemist nor a scrap dealer, I would like to know how you do to determine the material of a coin or token without its documentation.
​Thanks
​Gary Dykes posted a series of Specific Gravity tests on the website "Coin Talk", search for "GSDykes", and the words "Specific Gravity", a PDF file should then be presented. He tests many metal combinations. It is a challenge, but specific gravity tests can help!!
Mr. G. S. Dykes
ANA #3179303
WBCC #578
Quote: "yvon"
Quote: "Oklahoman"​How do you define a coin?
​​A thing, issued by a legal goverment or organisation, ment to pay for a product or service. And not some fantasyobject what is made, in the first place, to suck money out of the pockets from innocent collectors...but that is my personal point of view.



​"to suck money out of the pockets from innocent collectors"

Does that include low mintage and Paddington Bear
50 p's?

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