Azurite, a naturally occurring copper carbonate mineral, has been a blue pigment for thousands of years, particularly in medieval Europe, where it was a more affordable alternative to ultramarine made from lapis lazuli.
Related Posts
Too hot to sleep? Nights are warming faster than days as Earth heats up
Stephen Burt, University of Reading Sleeping at the height of summer can sometimes feel impossible. And with gruelling…
From ski jumps and sliding bobsleds to engineering snow, here are 5 essential reads on the science of the Winter Olympics
The 2026 Winter Olympics will be held in Milan and Cortina d’Ampezzo, Italy. AP Photo/Hassan Ammar Mary Magnuson,…
Scientific norms shape the behavior of researchers working for the greater good
Mentors model the ethical pursuit of scientific knowledge. sanjeri/E+ via Getty Images Jeffrey A. Lee, Texas Tech University…
NASA’s Parker Solar Probe Dipped Through the Sun’s Atmosphere For the First Time
NASA’s Parker Solar Probe seems to be on a roll lately, as it’s been consistently delivering several firsts…