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Gold prices eased on Thursday, pressured by a firmer U.S. dollar, as investor worries eased temporarily after President Donald Trump said he did not plan to oust Federal Reserve Chair Jerome Powell. Spot gold was down 0.6% at $3,335.77 per ounce, as of 0958 GMT. U.S. gold futures fell 0.8% to $3,331.30. The dollar index was […]

Mine ventilation is the essential process of supplying fresh air and controlling airflow in underground mines to ensure safe and healthy working conditions for miners. It plays a critical role in maintaining air quality, regulating temperature and humidity, and removing harmful contaminants such as dust, diesel fumes, and toxic gases. A well-designed ventilation system serves […]

In the competitive world of aggregate production, flexibility is key. Projects vary in location, material type, capacity requirements, and final product specifications. Contractors and operators across Latin America increasingly rely on the mobile stone crusher not just for its mobility but for its adaptability to different working conditions. Whether crushing hard granite, recycled concrete, or […]

Shares of Australian rare earths miners, including Lynas and Iluka Resources, soared on Friday after U.S.-based MP Materials’ a multibillion-dollar deal with the U.S. government to boost production of rare earth magnets. Lynas Rare Earths, the world’s largest, rare earths producer outside China, surged as much as 20% to its highest since mid-August 2022 and was […]

Global copper traders are offering cargoes to Chinese buyers as they look to offload metal no longer able to reach the U.S. before President Donald Trump’s 50% copper tariff deadline. Trump said late on Wednesday he would impose the new tariff from August 1 to promote domestic production of everything from semiconductors to ammunition. He didn’t specify […]

Assayers are needed in mining because they provide key information that is critical for mine performance. Assayers are responsible for inspecting, grading, sampling and testing of raw and processed materials. They set their own priorities and activities and must have an eye for detail. Assayers make meaningful contributions to mine performance and are well compensated […]

Explosives are the primary source of energy for rock breaking in the mining, quarrying and construction industries. The work into which the energy is converted transforms rock into a distribution of fragments and displaces them so that they can be conveniently loaded and hauled for further comminution and processing (Sanchidrián et al., 2007). Several factors […]

Location and ownership Detour Lake Mine is located in northeastern Ontario, Canada, near the Quebec border, approximately 185 km northeast of Cochrane, Ontario. While it is not physically in Quebec, it is situated very close to the Quebec-Ontario boundary and is part of the broader Abitibi Greenstone Belt, which spans both provinces. The mine is currently […]

Indonesia’s nickel miners’ association APNI on Friday urged the government to ensure mining quotas continue to be valid for three years to maintain a consistent business climate, rather than reverting to a single year as planned. The mining minister on Wednesday said the government plans to cut the duration of mining quotas, known as RKABs, […]

Gold prices rose on Friday and were set for a weekly gain as investors sought safe-haven assets amid fiscal concerns after the U.S. Congress passed President Donald Trump’s tax-cut and spending bill, while a weaker dollar aided further. Spot gold rose 0.5% to $3,343.94 per ounce, as of 0617 GMT. Bullion is up about 2.2% […]

Effective grade control in underground mines is essential for maximizing ore recovery, minimizing dilution, and ensuring that the material sent to the mill meets quality requirements. Below is a structured approach to operating grade control in UG mines, incorporating best practices and key operational steps. Establish a grade control team and framework Team composition: typically includes […]

This text is issued from a scientific article entitled « What causes mining asset impairments? » written by: Andrew Gillis from Aurora Hydrogen Inc, Edmonton, AB, Canada, John Steen & W. Scott Dunbar from Department of Mining Engineering, University of British Columbia, Vancouver, BC, Canada, Andrew von Nordenflycht from Beedie School of Business, Simon Fraser […]

Data validation is critical for grade control because it ensures the accuracy, integrity, and reliability of grading data, which directly impacts students, educators, and educational institutions. Here is why it’s important. Preventing errors and ensures accuracy Data validation acts as a safeguard against common errors in grade entry, such as inputting impossible scores (e.g., 110 out […]

The inherent complexity surrounding mining projects makes these initiatives both very valuable and incredibly risky. In fact, the risk emerges right from the onset, i.e. simply proposing an exploration project could collapse following a commitment of private investment. In 2013, a provincial government in Pakistan refused to provide Tethyan Copper Co. its mining license for the ‘Reko […]

Some Chinese smelters have agreed to process copper from Chilean miner Antofagasta  for no charge, a record low for the industry, but the outcome was better than expected for the smelters, already suffering losses. Antofagasta has agreed to set copper concentrate processing fees at $0 per metric ton and 0 cents per pound, four sources with […]