State mineral emblam of South Australia
What is Bornite?
Bronite is a copper iron sulfide mineral with a chemical composition of Cu5FeS4. It is found in porphyry copper and iron oxide copper gold deposits including throghout South Australia's Copper Belt.
If any single mineral specimen epitomises the unique geology of South Australia this is it. The rare specimen of bornite on display at the South Australian Museum measures 100 cubic centimetres, and is the largest single crystal of bornite ever unearthed!
Its quality far surpasses any bornite specimen from around the world in both its size and aesthetics, and these factors are highly prized in the international mineral market. It is fitting that the South Australian Museum's world leading minerals collection now holds the world's premier speciment of our new State Mineral Emblem.