{
  "feature": "aether:crystal_island",
  "placement": [
    {
      "type": "minecraft:rarity_filter",
      "chance": 100
    },
    {
      "type": "minecraft:surface_water_depth_filter",
      "max_water_depth": 0
    },
    {
      "type": "aether:improved_layer_placement",
      "count": {
        "type": "minecraft:uniform",
        "value": {
          "max_inclusive": 1,
          "min_inclusive": 0
        }
      },
      "heightmap": "OCEAN_FLOOR",
      "verticalBounds": 4
    },
    {
      "type": "minecraft:biome"
    },
    {
      "type": "aether:dungeon_blacklist_filter"
    }
  ]
}
