{
    "feature": "terralith:cave/generic/amethyst_geode",
    "placement": [
        {
            "type": "minecraft:rarity_filter",
            "chance": 18
        },
        {
            "type": "minecraft:random_offset",
            "xz_spread": 8,
            "y_spread": 0
        },
        {
            "type": "minecraft:height_range",
            "height": {
                "type": "minecraft:uniform",
                "min_inclusive": {
                    "absolute": -50
                },
                "max_inclusive": {
                    "absolute": 120
                }
            }
        },
        {
            "type": "minecraft:surface_relative_threshold_filter",
            "heightmap": "OCEAN_FLOOR_WG",
            "max_inclusive": -24
        },
        {
            "type": "minecraft:biome"
        }
    ]
}