Fig. 8
From: An analytical survey of zinc white historical and modern artists’ materials
Representation of the crystal geometry—(a*, c*) cross section of ZnO crystallites based on average crystal sizes computed by Williamson–Hall analysis of Brüggemann indirect ZnO powder (blue), ZnO nanosmoke powder (light blue), white seal Vieille Montagne ZnO powder (green), silver seal Vieille Montagne ZnO powder (orange), Lefranc 1930s paint tube (red), Lefranc & Bourgeois paint tube (black)