Five cent coins weigh 2.83g, contain 75 percent copper and 25 percent nickel, and has an echidna design impressed into one side.
Ten cent pieces are slightly larger than nickels, weigh 5.65g, contain the same percentage of copper to nickel as 5 cent pieces, and contain an impression of a lyrebird.
The 20-cent pieces have a diameter of 28.65 mm, weigh 11.3g and contain an impression of a platypus.
The 50-cent piece is similar in weight and size to the 20-cent piece, but it is designed with 80-percent silver and 20 percent copper. The current 50-cent design contains a number of flattened edges around the perimeter and an impression of the Commonwealth Coat of Arms.
The newly designed $1 piece, containing 92 percent copper, 6 percent aluminum and 2 percent nickel, was released in 2008. The coin, with its diameter of 25mm, contains an impressed design of five kangaroos.
The $2 piece, composed of the same materials that the $1 coin contains, both weighs and measures slightly less than the $1 piece. The impressed design is that of an aboriginal Australian, Australian flora and a representation of the Southern Cross.
