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| Source of a different color.illustration by Marcela Restrepo |
"For most of human history, we've derived dyes from nature: People cooked plants and animals until they produced the desired pigment, or mined precious minerals from subterranean seams and ground them into paints."
Mummy Brown was derived from the flesh, bones, and bandages of well-preserved Egyptian corpses. Scheele's green came from a lethal arsenic tincture that actually killed people.
Read more: Popular Science
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