{
  "feature": "cavernous:biomes/stone/crystal/amethyst_north",
  "placement": [
    {
      "type": "minecraft:count",
      "count": 250
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:height_range",
      "height": {
        "type": "minecraft:uniform",
        "min_inclusive": {
          "above_bottom": 7
        },
        "max_inclusive": {
          "absolute": 200
        }
      }
    },
    {
      "type": "minecraft:biome"
    }
  ]
}
