The majority of that wealth went into developing Spain's military capabilities. In the 16th and 17th centuries, Spain was involved in many wars during the Protestant Reformation of Europe, defending the Catholic Church. Notably, these wars included the wars in German States, the French Wars of Religion, the Eighty Years War in the Netherlands, and the Thirty Years War. Spain also fought vigorously for control of southern Italy and to repel the Ottoman advances in Southeast Europe. A minority went into developing infrastructure in Spain, making large palaces, impressive boulevards, and better postal roads.
The silver and gold Spain mined in the Americas made its way throughout Europe and impacted the global economy.
for the gold of the Americas
There was some gold and silver in Spain, but what made Spain rich in the 16th and 17th centuries was the gold and silver taken from Spanish possessions in the Americas.
Spain since they had the most slaves and laborers to mine the gold and silver
Spain's economy didn't benefit from the gold and silver from the Americas because although it did make Spain wealthy for some time, it caused the value of their money to drop and as the demand of physical elements increased, so did prices (inflation) causing Spain's economy to fail
Primarily to convert all the heathen natives to Christianity, and remove as much gold, silver and other wealth back to Spain.
That was a driving force to their take over of the Americas. Spain became rather rich with the gold and silver that was brought back from the are.
Spain was hovering on the edge of financial ruin. Through the explorations in the Americas, they found mines and relics of gold, silver and other important natural resources. These items were taken back to Spain to support their country and continued exploration with little regard for those who were stolen from.
to look for gold
During the colonial period, Spain extracted enormous wealth in the form of gold, silver and new crops from the Americas.
Initially Europeans explored the Americas in search of gold, silver and precious stones.
To increase the wealth of the empire by exploiting the resources of the new world. In the case of Spain, those meant gold and silver deposits found in the New Spain (present-day Mexico) and Peru.
Spain acquired a great deal of wealth because the gold and silver were sent to Spain.