Block Documentation - Block Description

The block "description" lives inside the "minecraft:block" section of a custom block's behavior pack JSON file, and contains a list of block characteristics that are applicable to all permutations of the block. The description MUST contain an identifier to identify the block by; the other fields are optional.

Parameters

Name	Type	Default	Description
identifier	String	not set	The identifier for this block. The name must include a namespace and must not use the Minecraft namespace unless overriding a Vanilla block.
states	JSON Object	not set	Map of key/value pairs that maps the state name (key) to an array of all possible values for that state (value). Learn how to use block states in Block States and Permutations.
traits	JSON Object	not set

Example

{
  "format_version": "1.0.0",
  "minecraft:block": {
    "description": {
      "identifier": "paladium:paladium_block"
    },
    "components": {
      "minecraft:material_instances": {
        "materials": {
          "*": {
            "texture": "paladium_block"
          }
        }
      },
      "minecraft:destructible_by_mining": {
        "hardness": 5,
        "tool_type": 3,
        "tool_tier": 4
      }
    }
  }
}