That find has had significant press in Arizona.
The canon was bronze.
The abstract of the article published 11-2024 is here
https://link.springer.com/article/10.1007/s10761-024-00761-7and here; some of the images are accessible (you'll need to cut and paste)
https://www.researchgate.net/publication/386017359_Coronado's_Cannon_A_1539-42_Coronado_Expedition_Cannon_Discovered_in_Arizona
In 711 the Moors (Muslim N. African Berbers and Arabs) gained control over most of Spain, until 1212, and were not defeated in Grenada until 1492. Arab traders were all over the known world, had access to metalsmiths from North Africa to Anatolia to India to China, and that technology made it to Spain.
c. 1000 pattern welded sword blades were produced in Toledo, Spain
Jan. 28, 1132 - The first documented record of cannons used on the battlefield, when General Han Shizhong used Huochong to capture a city in Fujian.
c. 1300 - Iron “hand cannon” barrels were first made.
c. 1580 Lock ‘a la Miquelet, the flint-lock, was invented in Spain
