Australian magnesite: : Recovery and expansion

• Autores: Industrial Minerals
• Localización: Industrial Minerals, ISSN 0019-8544, Nº. 582, 2016 (Ejemplar dedicado a: Abril)
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • QMAG commenced mining at the Yaamba magnesite deposit in September 2010. Together, the Kunwarara and Yaamba mines produced magnesite worth just over Australian dollar (A$) $45m ($33.2m**) in the 2014-15 financial year. Approximately 3m tpa run of mine (ROM) ore is produced from Kunwarara and 1m tpa from Yaamba. In the 2013-14 financial year, QMAG's Queensland operations produced 586,495 tonnes magnesite, rising to 658,562 tonnes in 2014-15.

    New South Wales hosts large, ultrapure, cryptocrystalline and nodular magnesite deposits, as well as widespread regolith hosted replacement deposits. According to the GSNSW, the state has previously produced around 1m tonnes magnesite from the BHP mine near Thuddungra, as well as about 895,000 tonnes hard magnesite (99.19% MgO calcined) from the Fifield magnesite mine. In addition, New South Wales hosts the Cargelligo (Whitton Road) deposits, with 93.4-97.3% MgCO[subscript]3 and ferric oxide from 0.5-1.8%; the Noakes deposit, with a measured resource of 12.6m tonnes grading at 43% MgCO[subscript]3 ;[subscript] and numerous other opportunities across the state.