Researchers have found a way to extract almost every photon from diamond color centers, a key obstacle in quantum technology.

China on Thursday announced export curbs on some types of artificial diamonds set to take effect just before the U.S.-China ...

Spruce tree needles contain tiny gold particles — and they could indicate large gold deposits beneath the surface.

By wearing them, we are passing down the importance of value and what it means to be wealthy in our traditional ways.” ...