mc_rebalance_datapack/data/minecraft/loot_tables/blocks/gravel.json

{
	"type": "minecraft:block",
	"pools": [{
		"rolls": 1,
		"entries": [{
			"type": "minecraft:alternatives",
			"children": [
				{
					"type": "minecraft:item",
					"name": "minecraft:gravel",
					"conditions": [{
						"condition": "minecraft:match_tool",
						"predicate": {
							"enchantments": [{
								"enchantment": "minecraft:silk_touch",
								"levels": {"min": 1}
							}]
						}
					}]
				},
				{
					"type": "minecraft:item",
					"name": "minecraft:gravel",
					"conditions": [
						{
							"condition": "minecraft:any_of",
							"terms": [
								{
									"condition": "minecraft:match_tool",
									"predicate": {"tag": "minecraft:shovels"}
								},
								{
									"condition": "minecraft:match_tool",
									"predicate": {"tag": "forge:tools/paxels"}
								}
							]
						},
						{
							"condition": "minecraft:random_chance",
							"chance": 0.5
						}
					]
				},
				{"type": "minecraft:item", "name": "minecraft:flint"}
			],
			"conditions": [{"condition": "minecraft:survives_explosion"}]
		}]
	}],
	"random_sequence": "minecraft:blocks/gravel"
}