@snow @freemo Atropa Belladonna is Latin for "Pretty Woman." I saw your comment about mica and I have lived around and played with it since childhood. It could be regional differences but I only associate it with the presence of Quartz and Granite rock. I also associate it with salamanders due to the areas where I have found it.
I believe that the problem with the metals is that they have long been preferred for their beauty. The metallic pigments were prolific in art. What made the beautiful colors was the unique reactions that the elements were good at.