While out in London earlier this week, Harry Styles appeared to be embracing some of the season’s strongest trends, with ...

Before we’re old enough to even see over the dashboard, we learn that green means go and red means stop. This internationally ...

Aquamarine and heliodor are colored by Fe ions, an important coloring agent for beryl. Blue to yellow gem beryl was studied by quantitative spectroscopy and trace-element analytical techniques to ...