Blob

Blob
Biomes	Basalt Deltas
Generates in; existing chunks	No
Consists of	Basalt or Blackstone

This feature is exclusive to Java Edition.

A blob is a feature consisting of basalt or blackstone blocks, which replaces netherrack blocks during world generation. They exclusively generate in basalt deltas and often overlap with other blobs.

Types

Blocks	Radius	Spawn tries per chunk	Minimum height	Maximum height	Ore concentrate^{[note 1]}	Biomes
Blackstone	3—7	25	0	127	Uniform	Basalt Deltas
Basalt	3—7	75	0	127	Uniform	Basalt Deltas

↑ Blobs generate using either uniform distribution, or triangle distribution. Uniform distribution have all ores spread in same frequency at any height, while triangle generates more frequently in center height.

Data values

ID

Feature type	Identifier
[No displayed name]	`netherrack_replace_blobs`

Configured feature	Identifier
[No displayed name]	`blackstone_blobs`
[No displayed name]	`basalt_blobs`

Config

Java Edition:

[NBT Compound / JSON Object] config
- [NBT Compound / JSON Object] state The block to use.
  - Block state see Template:Nbt inherit/block state/template
- [NBT Compound / JSON Object] target The block to replace. Properties here are ignored.
  - Block state see Template:Nbt inherit/block state/template
- [Int][NBT Compound / JSON Object] radius Value between 0 and 12 (inclusive).
  - Int provider see Template:Nbt inherit/int_provider/template

An example

{
  "type": "minecraft:netherrack_replace_blobs",
  "config": {
    "radius": {
      "type": "minecraft:uniform",
      "value": {
        "max_inclusive": 7,
        "min_inclusive": 3
      }
    },
    "state": {
      "Name": "minecraft:basalt",
      "Properties": {
        "axis": "y"
      }
    },
    "target": {
      "Name": "minecraft:netherrack"
    }
  }
}

History

Java Edition
1.16			20w15a				Added basalt blobs.
1.16			20w15a				Added blackstone blobs.

Issues

Issues relating to "Blob" are maintained on the bug tracker. Issues should be reported and viewed there.

Gallery

Screenshots

Blackstone ore (left) and blackstone blob (right).

[distributionType-1] Blobs generate using either uniform distribution, or triangle distribution. Uniform distribution have all ores spread in same frequency at any height, while triangle generates more frequently in center height.

[note 1]