A story of blue
8:05
The Story of Ultramarine from the Silk Road to Renoir: The Chemistry of Colour | National Gallery
15:15
A Invenção do Azul
3:04
Reconstructing Historical Methods of Making Oil Paint
12:05
Vivianite pigment - the blue ocher
6:13
Fra Angelico blue pigment extraction
5:19
The Rarest Pigment in the World | Colour the Spectrum of Science | BBC Science
13:02
The Story of Blue
6:07