Electrolytic pieces - Cobalt sample
These are electrolytically-created pieces of cobalt metal. I like the bumpy texture on the largest piece, which is distinctive of the process in general - other metals would be the same.
This sample is planned to represent cobalt in my WIP periodic table poster:
Source: ProMetals on Amazon
Date of Acquisition: 8 June 2026
Mass: 10g (net)













