Featured article: Lapis lazuli: Following the trace of a blue gemstone 

Article by Kathelijne Bonne

From high mountain peaks to the pharaohs.  

Read how precious stone lapis lazuli found its way from the world's most ancient mines to Mesopotamia, Egypt, and Greece, and finally to the canvases of the great painters. Find out how lapis lazuli formed in the first place, as it crystallized in seams of precious rocks in the midst of plate tectonic turmoil.