{
  "format_version": "1.10",
 	"minecraft:item": {
    "description": {
      "identifier": "minecraft:iron_pickaxe"
    },
    "components": {
    	"minecraft:digger": {
				"use_efficiency": true,
				"destroy_speeds": [
					{
						"block": {
							"tags": "query.any_tag('zy:ore')"
						},
						"speed": 20
					}
				]/*,
   			"on_dig": {
     			"event": "dig"
   			}*/
			}
    }/*,
		"events": {
			"dig": {
				"damage": {
					"type": "durability",
					"amount": 1
				}
			}
		}*/
  }
}