Ionite mine

The ionite mine produces ionites, one of the five basic resources. You can build a total of three ionite mines in your base, but the costs and requirements increase with each one you build, as follows:

The gallery below shows the ionite mine at all different levels.

Like other resource buildings, an ionite mine produces a certain amount of ionites per hour, which are stored in the building. The resources can be collected and moved to your warehouse (unless your warehouse is full of that resource) by clicking on the building. Once the building reaches its capacity, it will stop producing until the resources are collected in the warehouse.

Your journal has this to say about your ionite mine: ''It's an incredible luck that an Ionite mine was discovered on the fortress territory. It'll provide us with ionites, an extremely useful resource during wartime. This mineral plays a crucial role in the production and improvement of artillery support. Ionite crystals have fragile structure and you should use them very carefully. It would be vexing to lose even a small part of such a valuable resource. Now the mine is able to provide a pretty small flow of resources but you don't need to worry, because scientists promise that they can make some improvements and productivity will upgrade significantly. We have to build one more mine in the future, because ionite always comes in handy.''