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 Replies: 89 / Views: 9,562 |
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Pillar of the Community
Australia
507 Posts |
Quote:
I wonder if scales were calibrated correctly. Could the 16g not be in the scale itself? For those familiar with handling coins it should be very easy to notice something unusual in the weight or feel of coins - particularly for one weighing in excess of double a normal coin. To eliminate the potential for calibration issues, weighing 2 standard coins on the scales should deliver a lower reading ie 18.0g +/- ~0.5g |
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Pillar of the Community
Australia
4411 Posts |
Weigh a normal coin and let us know what your scales show. I would put my money on your scales being way out.
Edited by enworb
01/16/2013 08:16 am
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Pillar of the Community
Australia
674 Posts |
 Hooray- another mystery.! |
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Pillar of the Community
Australia
1874 Posts |
Some Jewelers and precious metal traders have something called a spectrometer which can tell you exactly what the coin is made from.
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Valued Member
Australia
414 Posts |
Sorry it just looks like an aUnc/Unc circualtion coin to me. I'd say the scales are out.
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Pillar of the Community
 Australia
1041 Posts |
OK JUST GOT HOME taken coin to a mate at cash converters used his scales and yes it still weighs 25.15 grams is 25mm wide
so still dont know were it can from was there a dollar gold coin made or could it be from a set
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Pillar of the Community
Australia
4411 Posts |
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Pillar of the Community
Australia
7096 Posts |
I found this on the RAM site 2nd May 2006 To commemorate 40 years of Australian decimal currency a very limited set of Gold Coins, featuring the additional solid gold one and Two Cent Piece, has been released by the Royal Australian Mint. The 40th anniversary of Australia's historic conversion to decimalisation is seen as an event which symbolically cemented a National identity with a unique national currency, first released in 1966. There are several unique features of this set including the addition of the round 50 cent piece, which was only in circulation for one year before it was replaced with the dodecagon shape that is commonly known today. The one and Two Cent Piece have also been included, which were respectively discontinued in 1990-92. The set features Stuart Devlin's original designs of iconic Australian fauna, which are recognised internationally and highlight Australia as a unique and inimitable country. Also featured in the set are Australia's $1 and $2 coins. Struck from 99.99% 24 carat gold, the set celebrates 40 years of circulating decimal currency. Only 300 of this superb and beautifully Australian product will be produced and will be a necessity for serious gold collectors and coin lovers world wide. This exquisite set is displayed in a beautifully crafted She-Oak and Jarrah presentation case and each set is accompanied by a numbered Certificate of Authenticity to add further to the beauty and prestige of this limited coin set. For more information about the 2006 Eight Coin Gold Set, or to make a purchase please visit http://www.ramint.gov.au, or contact our Call Centre on 1300 652 020. |
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Pillar of the Community
Australia
7096 Posts |
The speccs for the $1 gold coin in the 2006 gold proof set are; Mass=21.52 g Diameter= 25mm Yours is bloody close Mate  |
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Pillar of the Community
Australia
4411 Posts |
Trout that means the OPs coin is 20% heavier than the 2006 coins are meant to be, a huge difference really. There is no way in heck the RAM would put in 4 grams more of the good stuff and that would be within tolerances.
Edited by enworb
01/17/2013 02:28 am
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Pillar of the Community
Australia
1874 Posts |
If they did add 4 grams they waisted $100 of gold.(gold was about $25 per gram in 2006) I don't think the mint would do this if anything they would take 4 of gold.  Edited by flippy
01/17/2013 02:37 am
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Pillar of the Community
Australia
7096 Posts |
Quote:
Trout that means the OPs coin is 20% heavier than the 2006 coins are meant to be, a huge difference really. There is no way in heck the RAM would put in 4 grams more of the good stuff and that would be within tolerances.
I have no idea Matty, maybe the coin is 99.99% gold instead of 22k. I don't know. I'm simply googling the facts and putting them out there. It would be outstanding if the op's coin is a real gold dollar tho The truth and the facts normally wash up in the end with these sort of coins. |
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Pillar of the Community
Australia
4411 Posts |
The 2006 coins are struck in fine gold 99.99% so the weight difference cant be attributed to the difference between 22k & 24k gold. This is very strange, very very strange..
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Valued Member
Australia
318 Posts |
Australian Threepence has in the recent years posted two articles about error coins minted on incorrect planchets.
2009 $1 on Venzeulan planchet.
$2 coin on 10c EURO.
Anyone know of foreign coins weighing in at 25g?
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Pillar of the Community
Australia
7096 Posts |
The standard $1 coin is 25mm and has a mass of 9g. Whatever the OP's coin is made of it is more than 2.5 times denser than the ali bronze coin  . it could be faulty scales it could also be a figment of the imagination. Either way I would dearly love to see how this pans out  |
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Replies: 89 / Views: 9,562 |
First Page
Posted 01/16/2013 08:15 am
