{
    "type": "minecraft:netherrack_replace_blobs",
    "config": {
      "radius": {
        "type": "minecraft:uniform",
        "value": {
          "min_inclusive": 6,
          "max_inclusive": 12
        }
      },
      "state": {
        "Name": "regions_unexplored:argillite"
      },
      "target": {
        "Name": "minecraft:deepslate"
      }
    }
  }