{
  "type": "immersiveengineering:mineral_mix",
  "biome_predicates": [
    [
      "minecraft:is_overworld"
    ]
  ],
  "fail_chance": 0.1,
  "ores": [
    {
      "chance": 0.7,
      "output": {
        "tag": "c:ores/copper"
      }
    },
    {
      "chance": 0.3,
      "output": {
        "tag": "c:ores/gold"
      }
    },
    {
      "chance": 0.15,
      "output": {
        "id": "create:ochrum"
      }
    }
  ],
  "spoils": [
    {
      "chance": 0.2,
      "output": {
        "id": "minecraft:gravel"
      }
    },
    {
      "chance": 0.5,
      "output": {
        "id": "minecraft:cobblestone"
      }
    },
    {
      "chance": 0.3,
      "output": {
        "id": "minecraft:cobbled_deepslate"
      }
    }
  ],
  "weight": 20
}