All Australian general circulation 5 cent coins are round, made from 75% copper and 25% nickel, which gives them a silver appearance. They weigh 2.83 grams and are 19.41 mm in diameter and have reeding around the edge.
There have only been three different designs to date. All coins have had the same reverse designed by Stuart Devlin, depicting an Echidna with a large 5.
The differences are on the obverse.
1966-1984 - Queen Elizabeth II (Second Portrait showing a young QEII)
1988-1998 - Queen Elizabeth II (Third Portrait showing QEII wearing a necklace)
1999-current - Queen Elizabeth II (Fourth Portrait showing a much older QEII)
There were 4,337,200 Australian 1997 50 cent coins minted.
An Australian Twenty cent coin weighs 11.31 grams, so there would be about 88 Twenty cent coins in a Kilogram.
The Royal Australian Mint produced 19.031 million standard cupro-nickel 50 cent coins.
There are 100 cents in the Australian Dollar. That can constitute - 20 x 5 cent coins. 10 x 10 cent coins. 5 x 20 cent coins. 2 x 50 cent coins. 1 x 1 Dollar coin. The 1 and 2 cent coins are no longer in circulation.
Presumably, you refer to the Australian 50 cent coin. The round Australian 50 cent coin was only ever minted for 1966. All subsequent Australian 50 cent coins are dodecagonal or 12 sided.
An Australian 2001 50 cent coin roll, in the original Mint wrapper, uncirculated and in absolute mint condition could fetch up to $70 AUD. Coin rolls for all nine coins issued for this theme have the same value. A reputable coin dealer will be able to give a more accurate valuation.
Current US denominations are: 1 cent, 5 cent, 10 cent, 25 cent, 50 cent & $1.00 coins.
Silvery coloured Australian coins in general circulation are the 5, 10, 20 and 50 cent coins. Their composition is 75% copper and 25% nickel. There is no silver in any circulating Australian coin.
The diameter of an Australian Five cent coin is 19.41 mm. It would take about 103 Five cent coins to stretch 2 Metres.
1
These coins are potentially still in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 20 cents.
10 coins= 2 fifty cent coins.