Ancient Egyptian scribes mixed copper in their ink
New X-ray images have revealed copper in the ink scrawled on 2,000-year-old Egyptian papyri fragments.
Until now, archaeologists thought Egyptian scribes used ink composed entirely of carbon-based ingredients until the fourth and fifth centuries AD. The latest findings — detailed in the journal Scientific Reports — suggest scribes began mixing copper into their carbon-based inks much earlier than previously thought.
Continue reading – Ancient Egyptian scribes mixed copper in their ink