Underwater TNT
This page describes an education-related feature.
This feature is available only in Minecraft Education or when enabling the "Education" option in Bedrock Edition.
This feature is exclusive to Bedrock Edition and Minecraft Education.
Underwater TNT
| Renewable |
No |
|---|---|
| Stackable |
Yes (64) |
| Tool |
Any tool |
| Blast resistance |
0 |
| Hardness |
0 |
| Luminous |
No |
| Transparent |
Partial |
| Flammable |
Yes |
| Catches fire from lava |
Yes |
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"title": "Underwater TNT",
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"field": "No",
"label": "(link to Renewable resource article, displayed as Renewable)"
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{
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"label": "Stackable"
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{
"field": "0",
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"label": "(link to Breaking#Blocks by hardness article, displayed as Hardness)"
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"label": "(link to Light article, displayed as Luminous)"
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"label": "(link to Opacity article, displayed as Transparent)"
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"label": "(link to Flammable article, displayed as Flammable)"
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Underwater TNT is a block that can be used by the player to initiate a controlled explosion underwater.
Obtaining
Breaking
Underwater TNT can be broken instantly with any tool, or without a tool. However, primed underwater TNT cannot be broken, as it is an entity.
Crafting
| Ingredients | Crafting recipe |
|---|---|
| Sodium + TNT |
  |
Usage
Main article: TNT § Usage
Underwater TNT blocks can be activated the same way as a normal TNT block.
Behavior
Once activated, it explodes like a normal TNT block. However, unlike the traditional TNT block, it can destroy blocks underwater. It can still explode in the air, although it does not work in lava. Underwater TNT has the same delayed detonation rate as normal TNT.
Sounds
Generic
 grass sound type | |||||
|---|---|---|---|---|---|
| Sound | Source | Description | Resource location | Volume | Pitch |
| Blocks | Once the block has broken | dig | 0.7 | 0.8–1.0 | |
| Blocks | When the block is placed | use | 0.8 | 0.8–1.0 | |
| Blocks | While the block is in the process of being broken | hit | 0.3 | 0.5 | |
| Players | Falling on the block with fall damage | fall | 0.4 | 1.0 | |
| Players | Walking on the block | step | 0.3 | 1.0 | |
| Blocks | Jumping from the block | jump | 0.11 | 1.0 | |
| Blocks | Falling on the block without fall damage | land | 0.21 | 1.0 | |
Unique
| Sounds | |||||
|---|---|---|---|---|---|
| Sound | Source | Description | Resource location | Volume | Pitch |
| Blocks | When an underwater TNT block is lit | random | 1.0 | 1.0 | |
| Blocks | When an underwater TNT block explodes | random | 4.0 | 1.0 | |
Data values
ID
| Name | Identifier | Alias ID | Numeric ID | Form | Item ID[i 1] | Translation key |
|---|---|---|---|---|---|---|
 Underwater TNT | underwater_tnt | tnt / 2 | -985 | Block & Giveable Item[i 2] | Identical[i 3] | tile |
| Name | Identifier | Numeric ID | Translation key |
|---|---|---|---|
 Primed Underwater TNT | tnt | 65 | entity |
Block state
| Name | Metadata Bits | Default value | Allowed values | Values for Metadata Bits |
Description |
|---|---|---|---|---|---|
| explode_bit | 0x1 | false
| false | 0 | Hitting the TNT block breaks it, dropping it as an item that can be picked up. |
true | 1 | Hitting the TNT block causes it to ignite and then explode. |
History
| Bedrock Edition | |||||||
|---|---|---|---|---|---|---|---|
| 1.4.0 | beta 1.2.20.1 |  Added underwater TNT. | |||||
| 1.21.0 | Preview 1.21.0.21 | Underwater TNT now appears in the Creative inventory when the Education edition toggle is on. | |||||
| Minecraft Education | |||||||
| 1.0.27 | Added underwater TNT. | ||||||
| 1.21.03 | Preview 1.21.01.0 | Underwater TNT now appears in the Creative inventory. | |||||
Data history
| Bedrock Edition | |||||||
|---|---|---|---|---|---|---|---|
| 1.21.30 | Preview 1.21.30.23 | The different allow underwater bit block states for the tnt ID have been split up into their own IDs. | |||||
Issues
Issues relating to "Underwater TNT" are maintained on the bug tracker. Issues should be reported and viewed there.
Trivia
- The inclusion of sodium is a reference to elemental sodium's explosive reaction with water. All alkaline metals react with water violently to form hydrogen gas and a hydroxide. The heat generated often ignites the gas.
 Redstone
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