gold
The first metal discovered by man was gold and it was mainly used for decoration purpose.
COPPER
Metal was not available to 'stone age' man, it had not been discovered.
Man discovered that metal could be melted through the process of pottery firing, where temperatures high enough to melt metal were reached accidentally. This led to experimentation with ore smelting and the discovery of techniques to intentionally melt and shape metal.
the first man elephant.
The first Moari believed to have discovered New Zealand was a man named 'Kope'.
al geber [an arab man]
Gun powder was discovered by the Chinese in the 8th century, however Europeans were the first to use it in warfare to propel spears and later metal balls. - Mike the Genius
Iron
copper
Gold.
When man was intelligent enough to recognize it was there.