Weapons made locally from wood, stone, and obsidian were much less effective against the conquistadors’ steel armor, particularly their helmets.

“Local weapons were carved from wood and from stone and from obsidian, that volcanic glass,”

“which is razor sharp when honed to a point and quite dangerous as a slashing weapon.”

“But against the steel armor and especially the steel helmets that the conquistadors were wearing.”

“It was much less effective.”