
Lime is the result of limestone calcination. Between 800°C and 1000°C, the stones transform into quicklime, which is then immersed under water. Once cool, quicklime takes the form of a paste, which is called slaked lime. It has been used in construction for millennia. Many furnaces can still be found in the Queyras. Although very few written records remain, lime manufacturing must have played a role in the local economy.