Is there any documentation of the original Minecraft blocks behavior JSON? I'm not looking for blocks.json, I'm looking for individual vanilla blocks and their components such as stone.json, glass.json, etc. I can't find it in the Vanilla Behavior Pack, and poking around the apk file doesn't seem to be helping either. It would be really helpful as a guideline when making custom blocks in addons.

Thank you for your time.

  • There aren't (bc they are hard-coded into the game) but in a bit I can write some for you because those blocks are so simple they should be fairly easy to recreate
    – Penguin
    Apr 24 at 4:15
  • That's unfortunate. Such a list would be helpful. May 9 at 9:56
  • Ugh! I can't seem to find anything that indicates the correct tool right now, so maybe I'll come back later but as for right now looks like I can't, sorry :(
    – Penguin
    May 12 at 22:50
  • That's alright, thanks for trying anyway. May 13 at 10:43

Unfortunately, you can't modify the behavior of the blocks in the minecraft namespace. I followed the Microsoft documentation on custom block creation and adjusted the data to be directed at a sand block:

    "format_version": "1.16.0",
    "minecraft:block": {
        "description": {
            "identifier": "minecraft:sand",
            "is_experimental": false,
            "register_to_creative_menu": true
        "components": {
            "minecraft:destroy_time": 1,
            "minecraft:explosion_resistance": 5,
            "minecraft:friction": 0.6,
            "minecraft:flammable": {
                "flame_odds": 0,
                "burn_odds": 0
            "minecraft:map_color": "#FFFFFF",
            "minecraft:block_light_absorption": 0,
            "minecraft:block_light_emission": 0.8

The behavior pack will import successfully, but you'll be greeted by the following error message when loading it into a world:

[Blocks][error]-block_definitions | Taco's Test Pack | blocks/sand.json | Identifier not allowed to use Minecraft namespace

Subsequently, it is not possible to customize the behavior of default blocks.

  • I know you can't use the minecraft namespace, and I know the documentation has all the properties available, but what I'm looking for is the properties of the blocks. I might be able to reconstruct them by trial and error, but is there anything that tells me directly, for example, "the default stone block has a hardness of 1"? Aug 8 at 5:45

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.