1 jan 3000 ano antes da era comum - Tin

Descrição:

-Tin is extracted from its ore by roasting the mineral cassiterite with carbon in a furnace to approximately 2500 degrees Fahrenheit. The next step involves leaching with acid or water solutions to remove impurities

--Discovered in the Stone age
The Stone Age was a prehistoric period during which stone was widely used to make weaponry and other tools. The period lasted roughly 3.4 million years and ended between 8700 BCE and 2000 BC.

-Tin has many uses. It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel.

Tin also has to go through a chemical extraction process.