Minted from .9999 pure gold, the Kangaroo has a legal tender value of $100 AUS (1 Oz), $50 AUS (1/2 Oz), $25 AUS (1/4 Oz) and $15 AUS (1/10th Oz). The Perth Mint has been producing the Kangaroo gold coins since 1989 and mintage quantities tend to be lower than the comparable U.S. or Canadian bullion coins.