Handmade watercolor. Made of pigments and Gillot's Paint Medium.

Color: blue, CI: PB 29.77007

Chemical description: Natural Lapis Lazuli (sodium-aluminium-silicate, (Na,Ca)8 (AlSiO4)6 (S,SO4,Cl)x
Ultramarine Blue Pigment 29, C.I. 77007; CAS 57455-37-5) in Carol Gillot´s watercolor medium.