Alum is a mineral salt obtained from the soil. It is colourless, odourless and clean. Alum is commonly used in purifying water, but it also benefits the skin and other body parts.

Electric vehicles (EVs) and green energy sources rely heavily on batteries to store electricity. Currently, more than 75 ...

The secret sauce that allowed for industrial exploitation of aluminum was a rare mineral called “cryolite.” The co-discoverer of this process of using cryolite was a Charles Hall, who was also ...

Rubies are formed of a mineral called corundum, comprised of aluminum oxide. The red color is caused by traces of chromium. Corundum also forms sapphire in many colors, which generally come from ...

Hubbard, who first joined the USGS as a postdoc, is part of the agency’s Earth Mapping Resource Initiative (Earth MRI).