X-Nico

Cupronickel

Notably, Andreas Libavius, in his Alchemia of 1597 mentions a surface-whitened copper aes album by mercury or silver; but in De Natura Metallorum in Singalarum Part 1, of 1599, the same term was applied to "tin" from the East Indies (modern-day Indonesia and the Philippines) and given the Spanish name: tintinaso.

see also