minecraft_server_zombie/config/oretweaker/data/copper_ore.json

{
  "oreConfig": [
    {
      "ore": "minecraft:copper_ore",
      "fillers": [
        "STONE_ORE_REPLACEABLES"
      ],
      "distribution": "TRIANGLE",
      "minY": -16,
      "maxY": 112,
      "maxVeinSize": 10,
      "spawnRate": 16.0,
      "discardChanceOnAirExposure": 0.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "OVERWORLD"
        ]
      },
      "replace": true
    },
    {
      "ore": "minecraft:copper_ore",
      "fillers": [
        "STONE_ORE_REPLACEABLES"
      ],
      "distribution": "TRIANGLE",
      "minY": -16,
      "maxY": 112,
      "maxVeinSize": 20,
      "spawnRate": 16.0,
      "discardChanceOnAirExposure": 0.0,
      "biomeFilters": {
        "biomeBlacklist": [],
        "biomeWhitelist": [
          "minecraft:dripstone_caves"
        ]
      },
      "replace": true
    }
  ]
}