> For the complete documentation index, see [llms.txt](https://alex-plugins.gitbook.io/ouranos/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alex-plugins.gitbook.io/ouranos/ores.md).

# Ores

In Ouranos you can add as many ores as you want by modifying the value *ores* in the world configuration.

To do so add a ConfigurationOre property into the list : 

```
- ==: ConfigurationOre
  vein_per_chunk_min: 20   # The minimum amount of veins per chunk
  vein_per_chunk_max: 30   # The maximum amount of veins per chunk
  block: coal_ore          # material or blockdata
  vein_size_min: 4         # The minimum size of the vein
  vein_size_max: 10        # The maximum size of the vein
  min_height: 0            # The minimum height the ore can appear
  max_height: 320          # The maximum height the ore can appear
```