It should be noted that while in general metallurgy was less advanced in America, there also was a domain where it was more advanced than in the rest of the world.
There is one metal that has been discovered by the South-American natives, before the contact with Europe, and which was unknown elsewhere: platinum. The Europeans have learned from them about platinum.
Moreover, not only the South-Americans had discovered platinum, but they had also developed a technology to make objects of platinum. This is no small achievement, because platinum was impossible to melt or forge with the means available at that time.
The South-Americans had worked around this, by inventing a form of powder metallurgy. To make things of platinum, they sintered platinum powder and nuggets with gold.
This technology has been lost after the Spanish occupation, so the Europeans have developed techniques for platinum processing only much later, around the end of the 18th century and the beginning of the 19th century.
While platinum itself had been unknown in the rest of the world before the contact with South America, some platinum-group metals had been known, i.e. the natural alloy of osmium with iridium was known in the ancient Egypt, Greece and Roman Empire, in the form of nuggets that were mixed with those of gold in alluvial deposits. However none of the ancient Mediterranean people discovered any method for forging or melting the Os-Ir nuggets, so they were called "adamant", i.e. "untamed" (which has been distorted in the modern "diamond"). This was the original meaning of adamant/diamond. Only after the wars of Alexander the Great in India, the Europeans have learned about what are now called "diamonds", which were then named by the Greeks and Romans "Indian diamonds", to distinguish them from the Os-Ir diamonds. Later, the knowledge about Os-Ir nuggets has been forgotten and the references to them in Hesiod, Platon or Pliny the Elder have been mistranslated until now.
The Mayan discovering platinum and maybe working it a bit had no perceptible effect on their civilization, if only because a few bits of it did not provide an opportunity to use it.
Iron and steel, on the other hand, are transformative to civilization and the Romans made extensive use of it. For example, nails make it easy to build wooden structures.
(Gold and silver are also rather useless for pre-industrial civilizations, as they are not strong enough. Their usage was confined to decoration and currency.)
adrian_b|15 days ago
There is one metal that has been discovered by the South-American natives, before the contact with Europe, and which was unknown elsewhere: platinum. The Europeans have learned from them about platinum.
Moreover, not only the South-Americans had discovered platinum, but they had also developed a technology to make objects of platinum. This is no small achievement, because platinum was impossible to melt or forge with the means available at that time.
The South-Americans had worked around this, by inventing a form of powder metallurgy. To make things of platinum, they sintered platinum powder and nuggets with gold.
This technology has been lost after the Spanish occupation, so the Europeans have developed techniques for platinum processing only much later, around the end of the 18th century and the beginning of the 19th century.
While platinum itself had been unknown in the rest of the world before the contact with South America, some platinum-group metals had been known, i.e. the natural alloy of osmium with iridium was known in the ancient Egypt, Greece and Roman Empire, in the form of nuggets that were mixed with those of gold in alluvial deposits. However none of the ancient Mediterranean people discovered any method for forging or melting the Os-Ir nuggets, so they were called "adamant", i.e. "untamed" (which has been distorted in the modern "diamond"). This was the original meaning of adamant/diamond. Only after the wars of Alexander the Great in India, the Europeans have learned about what are now called "diamonds", which were then named by the Greeks and Romans "Indian diamonds", to distinguish them from the Os-Ir diamonds. Later, the knowledge about Os-Ir nuggets has been forgotten and the references to them in Hesiod, Platon or Pliny the Elder have been mistranslated until now.
WalterBright|15 days ago
Iron and steel, on the other hand, are transformative to civilization and the Romans made extensive use of it. For example, nails make it easy to build wooden structures.
(Gold and silver are also rather useless for pre-industrial civilizations, as they are not strong enough. Their usage was confined to decoration and currency.)
yread|15 days ago
lobf|16 days ago