{
  "type": "minecraft:ore",
  "config": {
    "size": 15,
    "discard_chance_on_air_exposure": 0,
    "targets": [
      {
        "target": {
          "predicate_type": "minecraft:random_block_match",
          "block": "minecraft:calcite",
          "probability": 0.65
        },
        "state": {
          "Name": "minecraft:diorite"
        }
      }
    ]
  }
}
