Answer:
The instruments' ability to extract iron from surroundings
Explanation:
In the book One Hundred Years of Solitude written by Gabriel Garcia Marquez, it was revealed that Jose Arcadio Buendia was fascinated by two magnetized ingots he bought from Melquíades the gypsy.
Hence, due to the ability of the magnetized ingots to draw irons, Jose Arcadio Buendia thought he could use the instrument's ability to extract gold from the underneath of the earth. He, therefore, traded his mule and pair of goats to buy the magnetized instruments.
