A blue pigment originally made from the gemstone lapis lazuli. Web resource here. Videos here and here and here.
Giotto di Bondone. Ceiling of the Scrovegni Chapel, Padua (detail). Fresco. 1305-1306.
A blue pigment originally made from the gemstone lapis lazuli. Web resource here. Videos here and here and here.
Giotto di Bondone. Ceiling of the Scrovegni Chapel, Padua (detail). Fresco. 1305-1306.