{
  "oreConfig": [
    {
      "ore": "minecraft:gravel",
      "fillers": [
        "BASE_STONE_OVERWORLD"
      ],
      "distribution": "UNIFORM",
      "minY": -64,
      "maxY": 256,
      "maxVeinSize": 33,
      "spawnRate": 14.0,
      "discardChanceOnAirExposure": 0.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "OVERWORLD"
        ]
      },
      "replace": true
    },
    {
      "ore": "minecraft:gravel",
      "fillers": [
        "minecraft:netherrack"
      ],
      "distribution": "UNIFORM",
      "minY": 5,
      "maxY": 41,
      "maxVeinSize": 33,
      "spawnRate": 2.0,
      "discardChanceOnAirExposure": 0.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "NETHER"
        ]
      },
      "replace": true
    }
  ]
}