{
	"type": "minecraft:random_patch",
	"config": {
		"feature": {
			"feature": {
				"type": "minecraft:simple_block",
				"config": {
					"to_place": {
						"type": "minecraft:weighted_state_provider",
						"entries": [
							{
								"weight": 30,
								"data": {
									"Name": "tfg:stromatolite_cluster_medium"
								}
							},
							{
								"weight": 50,
								"data": {
									"Name": "tfg:stromatolite_cluster_small"
								}
							}
						]
					}
				}
			},
			"placement": [
				{
					"type": "minecraft:heightmap",
					"heightmap": "WORLD_SURFACE"
				},
				{
					"type": "minecraft:block_predicate_filter",
					"predicate": {
						"type": "minecraft:has_sturdy_face",
						"offset": [
							0,
							-1,
							0
						],
						"direction": "down"
					}
				}
			]
		},
		"tries": 32,
		"xz_spread": 16,
		"y_spread": 3
	}
}