[0xDEEPFAC]

Interesting patterns, however, it is notable that all of the natural scenes of green probably contained high levels of arsenic - as that was one of the key ingredients in green coloring during Victorian times.

https://www.youtube.com/watch?v=MvxnXOoFl20

[phillc73]

The article does say, "All these papers, and nearly all that Morris then went on to design were printed using hand-cut woodblocks loaded with natural, mineral-based dyes." Is arsenic classed as a natural, mineral-based dye?

[severine]

I'd say yes: Arsenic is present in dyes classified as natural, mineral-based, according to https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5315675/ ("Natural Colorants: Historical, Processing and Sustainable Prospects").

[DrStormyDaniels]

It's likely not true: https://johnballblog.wordpress.com/william-morris-and-arseni...