Cockatoo Island (Western Australia)
Cockatoo Island is an island in the Buccaneer Archipelago off the coast of Western Australia near the town of Derby. It was mined for iron ore by the Broken Hill Proprietary Company from 1951 until 1984. Koolan Island is a neighbouring island that was also mined by BHP for high grade iron ore. It was most recently mined by Perth-based mining company, Pluton Resources until the company was placed under administration in September 2015. History The ironstone of Cockatoo Island was known to pearl l…