Resources XIV: Placing Copper Ore

Chalcopyrite has some relation to both gold and silver, and so it could be considered a lynchpin of this system. But we will also consider the other copper ores here as well.

I've found a really good resource at Mindat.org, which gives the number of mines around the world for different minerals. I can plug this into my formula and get a percentage occurrence for my own world.

• Chalcopyrite: 27,901 deposits. 16.9%
• Malachite: 12,759 deposits, 7.8%
• Azurite: 5,593 deposits, 3.4%

Not bad. Azurite and malachite are linked, and chalcopyrite is linked with volcanic areas and coal seams.