What happens when you try to make one of the world’s rarest blue pigments using nothing but raw stone and patience? This video follows the complete journey of transforming lapis lazuli into real ...

Russian scientists have discovered the mechanism of fading of ultramarine pigment, which has been used by great artists for hundreds of years. Over time, it loses its brightness, which threatens the ...

A pigment that was popular with Renaissance artists develops a wasting disease over time that causes blue parts of historical masterpieces to turn grey, scientists say. The costly pigment ‘ultramarine ...