Dilution occurs when waste material is mixed in with the ore during the mining phase and fed to the processing plant. The discrimination between ore and sub-economic dilution material is the site – and process specific cut-off grade (Dilution – SIX-S GmbH, n.d.). What are the types of dilution? Internal dilution and external dilution are […]

Introduction Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. In the 19th and 20th centuries, gossans were important guides to buried ore deposits used by prospectors in their quest for metal ores. An experienced prospector could read the clues in the structure […]

image source: ChemAnalyst Hydrogen-Based Direct Reduction and Smelting  The new ironmaking process with a projected capacity of three tons of hot metal per hour is based on the HYFOR and Smelter solutions from Primetals Technologies. HYFOR is the world’s first direct reduction technology for iron ore fines that does not require any agglomeration steps. Since […]

Disclaimer: This article was originally published by International Copper Association. Urban Mining is a concept that emphasizes the potential of cities, the human habitat and built environment as a source of raw materials. New research, commissioned by the International Copper Association (ICA) and conducted by Fraunhofer ISI, looks at its definition, the benefits it brings in […]

The global energy transition is reshaping the economics of mining by driving unprecedented demand for critical minerals, altering geopolitical dynamics, and introducing new challenges and opportunities for the industry. Energy transition has a major impact on the mining economy. The factors involved are many and varied. In this article we will highlight the major impacts […]

Singapore iron ore futures rose on Tuesday, driven by expectations of increased demand as steelmakers in the northern region of top consumer China are set to resume production following the conclusion of the annual parliament meeting. However, gains were capped by concerns over escalating global trade friction stirred by the latest tariffs by U.S. President […]

Rio Tinto has unearthed one of the largest gem-quality yellow diamonds ever discovered in Canada, from its Diavik Diamond Mine. The 158.20 carat rough diamond was discovered at Diavik located 200km south of the Arctic Circle in the remote Northwest Territories of Canada. It is one of only five yellow diamonds weighing more than 100 […]

Gold prices surged to an all-time high on Tuesday, extending their record run, as investors flocked to the safe-haven asset to guard against the potential repercussions of U.S. President Donald Trump’s reciprocal tariffs. Spot gold was up 0.1% at $3,125.69 an ounce, as of 0745 GMT, after hitting a record high of $3,148.88. U.S. gold […]

March 27 (Reuters) – Gold prices rose on Thursday as U.S. auto tariffs ratcheted up global trade tensions ahead of an April 2 deadline for reciprocal tariffs from the world’s largest economy. Spot gold was up 0.3% at $3,028.65 an ounce, as of 0650 GMT. U.S. gold futures gained 0.5% to $3,036.10. Investors feared that […]

I’ll be posting a series of short articles on mine scheduling. Like any good posts, it should include some storytelling and so I’m going to kick off with a story that was pivotal in many of my learnings about mine scheduling. The Broken Stocks Saga For a period in the 90’s, I was Grade Control […]