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
Carbon capture and storage: how to remove all CO₂ emissions everywhere all at once
Benjamin Clapp/Shutterstock José Luis Rodríguez Gallego, Universidad de Oviedo It is increasingly likely that we will not reach…
What causes earthquakes? A geologist explains where they’re most common and why
A man works his way through the rubble of buildings in Marrakesh, Morocco, after a magnitude 6.8 earthquake…
What’s so special about Ukraine’s minerals? A geologist explains
Hard rock spodumene ore, a commercially important source of lithium. BJP7images/Shutterstock Munira Raji, University of Plymouth Ukraine’s minerals…
Study Finds Sucralose’s Environmental Impact on Aquatic Microbes
At a Glance Scientific research has underscored the persistent presence of sucralose, an artificial sweetener widely used in…