Mineralogy

At every stage during the life cycle of a mineral deposit, from exploration to resource evaluation, mine planning, plant design and operation, product quality control, and through to closure and site rehabilitation, the information from mineralogical investigations should form an integral part of the knowledge base related to the resource.

Mineral Liberation Analyser (MLA)

The Mineral Liberation Analyzer (MLA) is an automated mineral analysis system that can identify minerals in polished sections of drill core, particulate or lump materials, and quantify a wide range of mineral characteristics, such as mineral abundance, grain size and liberation. Mineral texture and liberation potential are fundamental properties of ore and drive its economic treatment; the data gathered by the MLA is therefore invaluable to geologists, mineralogists.

The MLA offers a series of tailor-made measurement modes to ensure that you are not just gathering data, but also acquiring valuable mineralogical information. These modes use unique combinations of high-resolution BSE image analysis and advanced X-ray identification techniques to target your analytical requirements. Whether it’s analyzing complex base metal ores or searching for sub-micron grains of gold, the MLA provides a measurement solution for your application. The MLA’s powerful DataView software allows you to present the analysis results the way you need them: in tabular or graphical format, individually or combined, or exported to other software.

The MLA can measure base and precious metals, industrial minerals, coal and other materials. Measurements can be customized to minimize measurement time and excess data collection and hence increase sample throughput. The extensive range of distinct measurements, combined with tailored measurement software, can be adapted to your requirements.

  • Interpret your measurements

The flexible tabulated and graphical reporting outputs generated by MLA’s DataView software include:

  • Mineral abundance (modal analysis) and sample elemental distributions (assay)
  • Particle and grain size distributions
  • Mineral associations, liberation and locking
  • Theoretical grade-recovery curves
  • Particle densities and shape factors

These values can be used to assess the liberation properties of plant streams or to characterize the geometallurgical properties of an ore.

  • Optimize your processes

The MLA can analyze future concentrator feeds and the products of batch or pilot-scale separation tests. The efficiency of flotation tests can be assessed using MLA information, such as theoretical grade recovery curves. Information, for example, about the liberation distribution of the valuable minerals is vital in determining whether inefficient separation is due to the presence of unliberated particles or because of poor mechanical, reagent or separator performance.