{
  "oreChances": {
    "entries": {
      "minecraft:gold_ore": 0.2,
      "minecraft:lapis_ore": 0.15,
      "minecraft:emerald_ore": 0.05,
      "minecraft:coal_ore": 0.2,
      "minecraft:iron_ore": 0.2,
      "minecraft:diamond_ore": 0.05,
      "minecraft:redstone_ore[lit=false]": 0.15
    },
    "defaultBlock": "minecraft:coal_ore"
  }
}