Egyptian Blue: The Color of Technology
artinsociety.com
artinsociety.com
http://www.artinsociety.com/the-life-and-death-of-mummy-brow...
Far more fascinating. tl;dr: for several hundred years, Europeans traded in Aegyptian mummies (real ones and various imitations thereof) first for apothecary medicine (ergo consumption), then as paint pigment. Horatio must be spinning in his grave ("there are more things,... etc.").