{
  "type": "minecraft:block_column",
  "config": {
    "direction": "up",
    "allowed_placement": {
      "type": "minecraft:matching_blocks",
      "blocks": [
        "minecraft:stone",
        "calcite","diorite",
        "minecraft:air"
      ]
    },
    "prioritize_tip": false,
    "layers": [
      {
        "height": 1,
        "provider": {
          "type": "minecraft:simple_state_provider",
          "state": {
            "Name": "minecraft:grass_block",
            "Properties": {
              "snowy": "false"
            }
          }
        }
      }
    ]
  }
}