LTW3/data/minecraft/loot_tables/blocks/amethyst_cluster.json

{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1.0,
      "bonus_rolls": 0.0,
      "entries": [
        {
          "type": "minecraft:alternatives",
          "children": [
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:match_tool",
                  "predicate": {
                    "enchantments": [
                      {
                        "enchantment": "minecraft:silk_touch",
                        "levels": {
                          "min": 1
                        }
                      }
                    ]
                  }
                }
              ],
              "name": "minecraft:amethyst_cluster"
            },
            {
              "type": "minecraft:alternatives",
              "children": [
                {
                  "type": "minecraft:item",
                  "conditions": [
                    {
                      "condition": "minecraft:match_tool",
                      "predicate": {
                        "tag": "minecraft:cluster_max_harvestables"
                      }
                    }
                  ],
                  "functions": [
                    {
                      "function": "minecraft:set_count",
                      "count": 4.0,
                      "add": false
                    },
                    {
                      "function": "minecraft:apply_bonus",
                      "enchantment": "minecraft:fortune",
                      "formula": "minecraft:ore_drops"
                    }
                  ],
                  "name": "minecraft:amethyst_shard"
                },
                {
                  "type": "minecraft:item",
                  "functions": [
                    {
                      "function": "minecraft:set_count",
                      "count": 2.0,
                      "add": false
                    },
                    {
                      "function": "minecraft:explosion_decay"
                    }
                  ],
                  "name": "minecraft:amethyst_shard"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}