The ancient people created the five secret arts based on the principle of the five elements, which are the five arts of gold, wood, water, fire and earth, and formed five corresponding sects.
The covert nature of Renaissance alchemy meant ... and lead in four of the five studied shards. “Cross sections of the shards ...
The five shards studied in the new research were ... Four of the shards contained higher concentrations of elements than expected, including nickel, copper, zinc, tin, mercury, gold and lead ...