Mining guide

From 1-100 Your only way to level is copper ore which can be obtained from normal difficulty. Copper is used to make a random relic with 25 copper ore. As with all other ores you will get one level per times mined and each rock can give you somewhere between 2-5 times which can end up with somewhere between 2-15 ores. Each map will have from 0-2 rock locations containing from 1-3 rocks. This is the same with other ores.

When you reach 100 you can start mining iron ore which is obtained from nightmare difficulty. Iron ore is used to make a random legendary which will scale to your level.

After achieving 250 mining you can start mining gold ore from hell difficulty. Gold ore is used to make a random mythic which will scale to your level.

The last 500 levels you will most likely be only mining ruby ore from inferno difficulty. It can be used to make any satanic item and a variety of other things.