Jump to content
I Forge Iron

Mokume-Gane From AUD Coins?


FlyingXS

Recommended Posts

Us 5 cent is 75% copper and 25% nickel and to make mokume you need a layer of copper or brass between to have contrast. Our 25 cent and 50 cent pieces are already layered that way and is what is used mostly for quarters mokume.

Link to comment
Share on other sites

It appears for the moment that ours is the same.

 

 

Australian coins [1] Image Value Technical parameters Description Date of
first minting Diameter Thickness Weight Composition Edge Obverse Reverse 43px-Australian_1c_Coin.png 1c
(no longer used) 17.65 mm   2.60 g 97% copper
2.5% zinc
0.5% tin   Queen
Elizabeth II
Feathertail Glider 1966 54px-Australian_2c_Coin.png 2c
(no longer used) 21.59 mm   5.20 g   Frill-necked Lizard 49px-Australian_Five_Cents_Rev.png 5c 19.41 mm <1.3 mm 2.83 g Cupronickel
75% copper
25% nickel Milled Queen
Elizabeth II
Echidna 1966 59px-Australian_10c_Coin.png 10c 23.60 mm <2 mm 5.65 g Superb Lyrebird 71px-Australian_20c_Coin.png 20c 28.65 mm <2.5 mm 11.3 g Platypus 79px-Australian_50c_Coin.png 50c Dodecagon 31.65 mm (across flats) 2.5 mm 15.55 g Plain Coat of arms 1969 63px-Australian_%241_Coin.png $1 25.00 mm <3 mm 9.00 g 92% copper
6% aluminium
2% nickel Interrupted
milled Queen
Elizabeth II
Five kangaroos 1984 51px-Australian_%242_Coin.png $2 20.50 mm <3.2 mm 6.60 g Aboriginal Elder 1988 These images are to scale at 2.5 pixels per millimetre. For table standards, see the coin specification table.

 

 

The size and composition of some of Australia's coins may have to be changed because of the soaring cost of copper and nickel. This year, the metal value of the 5c, 10c and 20c coins will overtake their face value for the first time.  And the metal content of our 10c, 20c and 50c pieces is now worth more than the metal in the $1 and $2 coins.

But anyone who thinks melting down coins could be a clever money-making venture has been warned it is illegal to melt currency and heavy penalties apply.

http://www.dailytelegraph.com.au/news/national/coins-worth-weight-in-gold/story-e6freuzr-1111115748072?nk=f1226ad068ebd68e712777e1e4bf9f9a

Link to comment
Share on other sites

Most of those should be fair game for use in mokume, DEFINITELY read up on your local laws and regulations regarding destruction, defacement, and 'repurposing' of federal currency beforehand though.  there is a clause in the US laws that allows for coinage to be used for "art purposes" as an exception to our ban on recycling/melting/defacing etc.  there have been a couple of threads about it previously.

 

im not certain about the one with 6% aluminum though, that might be kind of a wildcard.  id test a stack or two with those once you have gotten the process down a bit to see if you can get them to work consistently before trying to source out a large quantity.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...