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
Who owned this Stone Age jewellery? New forensic tools offer an unprecedented answer
Max Planck Institute for Evolutionary Anthropology Michelle Langley, Griffith University An international team of researchers has recovered DNA…
Study Shows Promising Results In Analyzing Pipeline Accidents Using “Petri Nets”
Pipeline accidents can have devastating consequences, from environmental damage to loss of life. In response to such incidents,…
Blue Origin’s “New Shepard” Makes History
Hot on the heels of Virgin Galactic’s VSS Unity launch just a bit more than a week prior,…
Ancient pollen reveals stories about Earth’s history, from the asteroid strike that killed the dinosaurs to the Mayan collapse
An electron microscope image, colorized, shows different structures of pollen grains, including sunflower, morning glory and primrose. Dartmouth…