“Importantly, Spain had any number of slave labor silver mines in northern Mexico,..”
I doubt there was too much of a direct connection, because advances in mining technology seemed to have transcended the Dark Ages because of war and mercantilism.
Even before the masterpiece De re metallica (1566) was compiled and written, there was a vast amount of post-Roman innovation within, much of which was known to Spain. (N.B.: the first good English translation was done by none other than the soon to be President of the United States, Herbert Hoover.)
https://en.wikipedia.org/wiki/De_re_metallica
I might also mention that a mining historian I knew was amazed that in one of their mountains, the Spaniards had built a very large, square, downward *diagonal* shaft, solely for tailings from the mine, much higher up. He said had it been horizontal you could have driven a modern train through it.
The silver miners were also known for their innovations. One such mine was pestered by banditos after their monthly silver production was stolen. Their response was to create enormous man sized silver balls that could only be carried by being rolled, tugged by a very large mule team.
When the banditos showed up, they just abandoned the silver ball, as there was nothing the banditos could do with it. Then they just waited until the frustrated banditos left.