Heart of the Sea

A Heart of the Sea is a rare aquatic-related item used for crafting conduits that were added in 1.13 - The Update Aquatic.

Source[]

Hearts of the sea can be found inside treasure chests, which could (in theory) be discovered randomly. However, players can easily locate a hidden treasure chest by following an exploration map. These maps can be found aboard sunken shipwrecks, crafted with a cartography table, or bought from cartographer villagers in exchange for a compass and some emeralds. Feeding a dolphin with raw cod can lead players to nearby sunken shipwrecks.

Usage[]

Currently, the Heart of the Sea's sole purpose is for use in the crafting of conduits which are like underwater beacons that give players within its proximity buff effects.

Crafting[]

Conduit
Nautilus Shell	Nautilus Shell	Nautilus Shell
Nautilus Shell	Heart of the Sea	Nautilus Shell
Nautilus Shell	Nautilus Shell	Nautilus Shell

Trivia[]

In the game files, it's referred to as the Nautilus_Core, a reference to the Nautilus Shell, an item also used in crafting a conduit.

Video[]

Conduit - Minecraft Micro Guide

Items
Raw Materials	Blaze Rod • Bone • Clay • Coal ( Charcoal) • Diamond • Ender Pearl • Feather • Flint • Ghast Tear • Glowstone Dust • Gold Ingot ( Nugget) • Gunpowder • Iron Ingot • ( Nugget) • Leather • Ink Sac ( Glow Ink Sac) • Nether Wart • Nether Star • Prismarine Shard • Prismarine Crystal • Redstone Dust • Slimeball • String • Emerald • Firework Star • Rabbit Hide • Rabbit's Foot • Shulker Shell • Nautilus Shell • Phantom Membrane • Heart of the Sea • Scute • Honeycomb • Netherite Scrap • Ceramic Shard • Copper Ingot • Amethyst Shard • Goat Horn
Manufactured	Blaze Powder • Book • Bowl • Brick ( Nether) • Eye of Ender • Fermented Spider Eye • Glass Bottle ( Water Bottle) • Glistering Melon • Magma Cream • Paper • Popped Chorus Fruit • Potions ( Splash • Lingering) • Netherite Ingot • Stick • Sugar
Food	Beetroot • ( Beetroot Soup) • Bread • Cake • Carrot ( Golden Carrot) • Chorus Fruit • Cookie • Egg • Melon Slice • Milk • Mushroom Stew • Potato ( Baked • Poisonous) • Sweet Berries • Pumpkin Pie • Raw Beef ( Steak) • Raw Chicken ( Cooked) • Raw Cod ( Cooked) • Raw Porkchop ( Cooked) • Apple ( Golden • Notch) • Rotten Flesh • Spider Eye • Raw Rabbit ( Cooked) • Raw Mutton ( Cooked) • Rabbit Stew • Tropical Fish • Raw Salmon ( Cooked Salmon) • Pufferfish • Dried Kelp • Suspicious Stew • Honey Bottle • Glow Berries
Plants	Seeds ( Beetroot • Wheat • Pumpkin • Melon) • Sugar Cane • Wheat • Kelp • Bamboo • Sweet Berries • Glow Berries
Dyes	Red Dye • Pink Dye • Orange Dye • Yellow Dye • Green Dye • Lime Dye • Light Blue Dye • Cyan Dye • Lapis Lazuli • Magenta Dye • Purple Dye • Gray Dye • Light Gray Dye • White Dye • Black Dye • Brown Dye • Blue Dye
Tools	Axe • Bucket ( Water • Lava • Bucket of Fish) • Bucket of Powder Snow • Fishing Rod • Flint and Steel • Hoe • Pickaxe • Shears • Shovel • Book and Quill • Lead • Shield • Carrot on a Stick • Warped Fungus on a Stick • Brush • Bundle • Spyglass
Informative	Clock • Compass • Map • Exploration Map
Weapons	Bow ( Arrow) • Fire Charge • Snowball • Sword • Trident • Crossbow
Armor	Boots • Chestplate • Helmet • Leggings • Horse Armor • Elytra • Turtle Shell
Vehicles	Boat • Minecart ( with Furnace • with Chest • with TNT • With Hopper • with Command Block)
Utility	Saddle • Totem of Undying • Name Tag
Decoration	Music Discs
Creative only	Spawn Egg • Debug Stick
Unimplemented	Quiver • Ruby • Horse Saddle • Skis • Studded Armor • Crystallized Honey
Education Edition only	Portfolio • Glow Stick • Bleach • Latex • Sparklers • Ice Bomb • Super Fertilizer