When placing a vault rock onto a altar it will give you 4 different item types to provided it and the number of items in order to generate a vault crystal.
Once these items have been offerent to the Altar you need to send a redstone signal to it to retrieve a vault crystal.
The items it can request are :
| Blocks | Mob Drops | Farmable | Misc |
| Acacia Log | Arrow | 2 - Tall Flowers | Amethyst Shard |
| Andesite | Blaze Rod | Apple | Blaze Rod |
| Basalt | Bone | Azaleas | Chorus Flowers |
| Birch Log | Cocoa Beans | Bamboo | Coal |
| Blackstone | Cod | Beetroot | Cobweb |
| Blue Ice | Dyes | Beetroot Seeds | Cod |
| Bricks | Egg | Big Dripleaf | Copper Ingot |
| Calcite | Ender Pearl | Brick | Corals |
| Cobblestone | Feather | Brown Mushroom | Dead Corals |
| Concrete Powders | Ghast Tear | Cactus | Diamond |
| Concretes | Glow Ink Sac | Carrot | Dyes |
| Crimson Stem | Gunpowder | Chorus Fruit | Egg |
| Crying Obsidian | Honey Bottle | Clay Ball | Emerald |
| Dark Oak Log | Honeycomb | Crimson Fungus | Ender Pearl |
| Deepslate | Ink sac | Glow Berries | Feather |
| Diorite | Leather | Glow Lichen | Ghast Tear |
| Dirt | Magma Cream | Kelp | Glow Ink Sac |
| Dripstone Block | Nautilus Shell | Leaves | Glowstone Dust |
| End stone | Phantom Membrane | Lily Pad | Gold Ingot |
| Glasses | Poisonous Potato | Melon | Gunpowder |
| Granite | Pufferfish | Nether Wart | Honey Bottle |
| Gravel | Rabbit Hide | Potato | Honeycomb |
| Ice | Rabbits Foot | Pumpkin | Ink sac |
| Jungle Log | Raw Beef | Red Mushroom | Iron Ingot |
| Magma Block | Raw Chicken | Sea Pickle | Lapis Lazuli |
| Moss Block | Raw Mutton | Seagrass | Leather |
| Mossy Cobblestone | Raw Porkchop | Small Flowers | Magma Cream |
| Mycelium | Raw Rabbit | Snowball | Music Disc |
| Nether Wart Block | Rotten Flesh | Sugar Cane | Name Tag |
| Netherrack | Salmon | Sweet Berries | Nautilus Shell |
| Oak Log | Slime Ball | Tulips | Nether Star |
| Obsidian | Spider eye | Twisting Vines | Phantom Membrane |
| Podzol | String | Vines | Pointed Dripstone |
| Prismarine | Tropical Fish | Warped Fungus | Poisonous Potato |
| Purpur Block | Turtle Egg | Weeping Vines | Prismarine Crystals |
| Rooted Dirt | Wither Skeleton Skull | Wheat | Prismarine Shard |
| Sand | Wheat Seeds | Pufferfish | |
| Shroomlight | Wither Rose | Quartz | |
| Smooth Stone | Rabbit Hide | ||
| Soul Sand | Rabbits Foot | ||
| Soul Soil | Raw Beef | ||
| Spruce Log | Raw Chicken | ||
| Stone | Raw Mutton | ||
| Terracottas | Raw Porkchop | ||
| Tuff | Raw Rabbit | ||
| Warped Stem | Redstone | ||
| Warped Wart Block | Rotten Flesh | ||
| Wools | Saddle | ||
| Salmon | |||
| Slime Ball | |||
| Spider eye | |||
| Sponge | |||
| Spore Blossom | |||
| String | |||
| Totem of Undying | |||
| Trident | |||
| Tropical Fish | |||
| Turtle Egg | |||
| Wither Skeleton Skull |