{
    "type": "minecraft:basalt_columns",
    "config": {
        "reach": {
            "type": "minecraft:uniform",
            "min_inclusive": 2,
            "max_inclusive": 3
        },
        "height": {
            "type": "minecraft:uniform",
            "min_inclusive": 1,
            "max_inclusive": 5
        }
    }
}