
Synroc is a Canberra invention! It was invented in 1978 by Professor Ted Ringwood of the ANU and subsequently developed by the Australian Nuclear Science and Technology Organisation (ANSTO) at Lucas Heights, Sydney.
Synroc is a "synthetic rock" consisting of natural minerals that can incorporate and immobilise in their crystal structure most forms of radioactive waste. Synroc binds up the waste and keeps it safe for billions of years. It is particularly suitable for difficult high-level radioactive waste (HLW).