"Meet the ‘Empress of Uruguay’, the world's biggest amethyst geode in the Atherton Tablelands, Cairns. This Australian beauty weighs 2,500 kg, stretches 3.27 metres tall, and it took two large cranes to lift her into her current position."


http://www.crystalcaves.com.au/faq/the-empress-of-uruguay-frequently-asked-questions/