The mining newspaper for Alaska and Canada's North
The mining newspaper for Alaska and Canada's North
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Rhenium is exceptionally resistant to heat and wear, characteristics that make it a vital ingredient in superalloys used in jet and industrial gas turbine engines. "The high-temperature properties of rhenium allow turbine engines to be designed with finer tolerances and operate at temperatures higher than those of engines constructed with other materials," the United States Geological Survey penned in a fact sheet on the critical metal. "These properties allow prolonged engine... Full story
While the United States consumes roughly 5% of the chromite mined globally, none of this chromium mineral comes from domestic mines. Instead, America relies on foreign sources for approximately 72% of its supply and the balance of this vital ingredient in stainless steel and many superalloys comes from recycling. Nearly all America's chromite imports come from one country, South Africa. This heavy reliance on one country, coupled with a dearth of alternatives for this vital... Full story
The United States imported more than 90% of the 1.4 million metric tons of titanium minerals it consumed during 2019. What the mass majority of this critical mineral was used for, however, may come as a surprise. While titanium's lightweight and extreme durability make it an excellent material for aircraft and high-performance sporting equipment, more than 90% of this mineral mined each year is used to impart a stark whiteness to a surprisingly wide variety of consumer goods w... Full story
