Miners In the course of the center Ages evidently thought bismuth for being a phase in the development of silver from baser metals and were being dismayed whenever they uncovered a vein in the metallic thinking they'd interrupted the method. From the fifteenth-century writings of the German monk Basil Valentine https://hpmchydroxypropylmethylce41740.aboutyoublog.com/38445276/not-known-details-about-bismuth-trisulfide