These include iron for yellow to orange to brown (fire opal), copper for a saturated blue (“Peruvian opal ... such as opaque black octahedra, pyrite cubes, or rootlet fossils (Gauthier et al., 2013).

Cube pendant with small crystal - handmade copper jewelry To create a cube from copper wire is not too difficult. It is difficult to make the faces of the cube equal and ensure the hardness of the ...

China's growing copper reserves have caught the eye of President Donald Trump, who on Tuesday ordered an investigation into what administration officials say is Beijing's move to "gain control of ...

President Trump on Tuesday directed his Commerce secretary to investigate the need for possible tariffs on copper, the latest industry to potentially be targeted by Trump’s sweeping trade agenda.

BHP (ASX: BHP) continues its global search for copper to meet soaring demand driven by the energy transition, but a shortage of high-quality deposits— particularly in stable jurisdictions ...

BEIJING, Feb 26 (Reuters) - U.S. President Donald Trump on Tuesday ordered a probe into possible tariffs on copper imports to rebuild U.S. production of a metal critical to electric vehicles ...

President Donald Trump signed an executive order on Tuesday instructing the Department of Commerce to investigate whether to impose tariffs on copper and derivative products, key industrial ...

President Donald Trump ordered the Commerce secretary to compile a report about whether U.S. reliance on foreign copper threatens national security. In his order, the president sought policy ...

Shares of Nano Nuclear Energy Inc. NNE have surged an impressive 457.6% over the past year, outperforming the Zacks Alternative-Energy industry’s return of 65.9% as well as the broader Zacks ...

Tariffs, if they are imposed, could boost U.S. production of a valuable resource but also raise costs for automakers, construction companies and others. By Ana Swanson and Shawn McCreesh Ana ...

WASHINGTON, Feb 25 (Reuters) - President Donald Trump opened yet another front on Tuesday in his assault on global trade norms, ordering a probe into potential new tariffs on copper imports to ...