The Australian Kangaroo is the official silver bullion coin of Australia and are produced by the prestigious Perth Mint. These coins have purity and weight that has been guaranteed by the Australian Government. As is true with most sovereign minted coins, these tend to cost more. This is because they benefit from not only their silver value, but their collectible value as well. If you are person who likes the visual quality of you silver collection as much as you care about the value, the Australian Kangaroo is a beautiful coin and a great choice.