Block Properties

Block properties share the same properties as items

All properties (excluding the shared item and decoration properties):

{
  "properties": {
    "blockBase": "minecraft:stone",
    "requiresTool": true,
    "explosionResistance": 10,
    "destroyTime": 5,
    "redstoneConductor": false,
    "lightEmission": 0,
    "lootTable": "minecraft:block/dirt"
  }
}

blockBase:

Specifies the base block for this block property. Must be a valid block identifier. This is used for sounds and particles.

Defaults to minecraft:stone

requiresTool:

Boolean (true/false) indicating whether the block requires a specific tool to be harvested.

Defaults to true

explosionResistance:

Number indicating the block's resistance to explosions.

Defaults to 0

destroyTime:

Resistance of the block/the time required to destroy the block.

The destroyTime is used as explosionResistance if explosionResistance is not explicitly specified.

For indestructible blocks use a destroyTime of -1.

Defaults to 0

redstoneConductor:

Boolean (true/false) indicating whether the block can conduct redstone signals.

The value of this property can be mapped to a blockstate like this:

{
  "properties": {
    "redstoneConductor": {
      "powerlevel=0": true,
      "powerlevel=1": false,
      // etc.
    }
  }
}

Defaults to true

lightEmission:

Light level this block emits.

The value of this property can be mapped to a blockstate like this:

{
  "properties": {
    "lightEmission": {
      "powerlevel=0": 0,
      "powerlevel=1": 1,
      // etc
    }
  }
}

Defaults to 0

transparent:

Flag indicating whether the block is transparent. Transparent blocks don't block light

Defaults to false

allowsSpawning:

Flag indicating whether mobs can spawn on this block.

Defaults to false

replaceable:

Flag indicating whether this block can be replaced by another block when placing a new block (e.g., grass can be replaced when placing a solid block). Defaults to false

collision:

Flag indicating whether the block has collision Defaults to true

solid:

Flag indicating whether the block gets flushed away with water.

Defaults to true

pushReaction:

Specifies how the block reacts to being pushed by a piston. Possible values include normal, destroy, block

Defaults to normal

lootTable:

Allows to override the default loot table

Example: minecraft:block/dirt

Defaults to <namespace>:block/<blockname>.

So for a block "mynamespace:myblock", the default would be mynamespace:block/myblock