{
  "type" : "minecraft:ore",
  "config" : {
    "discard_chance_on_air_exposure" : 0.0,
    "size" : 33,
    "targets" : [
      {
        "state" : {
          "Name" : "minecraft:diamond_block"
        },
        "target" : {
          "predicate_type" : "minecraft:tag_match",
          "tag" : "minecraft:base_stone_overworld"
        }
      }
    ]
  }
}