Pre-Tararia ores: Pre-Tararia ores will appear randomly, and the unrefreshed ores will be replaced by equivalent ores.
Copper mine = tin mine, iron mine = lead mine, silver mine = tungsten mine and gold mine = platinum mine. The attribute difference of equivalent minerals is very small, and the role in the game is exactly the same.
Late Tararia minerals: After entering the post-Roushan world, the map will be refreshed. Miyin/Shancopper mine and refined gold/titanium gold mine are all equivalent minerals.
In the later stage of the game, Noroi Mine and Yueming Mine are unified mines, and players can collect in different worlds to speed up the collection efficiency of mines.