DIRECT ANSWER
The short answer
Craft 8 nautilus shells around a heart of the sea, then activate it in a prismarine frame underwater.
PREPARATION
Exactly what you need
- Primary tool: Pickaxe
- Craft 8 nautilus shells around a heart of the sea, then activate it in a prismarine frame underwater.
- Torches, food, and location-appropriate safety gear
Where to find or obtain it
- Craft 8 nautilus shells around a heart of the sea, then activate it in a prismarine frame underwater.
- both Java and Bedrock Editions
EXACT METHOD
Step-by-step method
- Identify the source or locationCraft 8 nautilus shells around a heart of the sea, then activate it in a prismarine frame underwater.
- Prepare the correct toolThe primary tool is Pickaxe. Check Silk Touch and Fortune behavior before breaking a valuable block.
- Harvest safelyInspect adjacent blocks, drops, and lava or fall hazards; then break the block and collect the drop immediately.
SAFETY & EFFICIENCY
Mistakes and dangers
- Recheck the required tool and enchantment before breaking a rare block.
- Deep or suspended blocks may hide lava, a fall, or item-burning hazards.
PLAYER-TESTED TIPS
Test a small, inexpensive version first.
A spare tool and empty inventory space usually save more time than raw speed.
Version notes
This block entry targets Minecraft 1.21.8 and both Java and Bedrock Editions. Coordinates, drop rates, and some mechanics can differ between Java and Bedrock.
Java Edition1.21.8Verified source data
Bedrock Edition1.21.8Mechanics may vary
Sources and verification
Facts are summarized and cross-checked; source pages remain linked for exact tables, edition differences, and future updates.