Non-renewable items

The flip-side of is non-renewability — items and resources which may or may not be common, but cannot be created within a single world. This includes any item which cannot be purchased, gained from a drop, or crafted from renewable materials.
On the , any item that can go in the player's inventory can be researched and duplicated, making them all infinitely renewable, but only for Journey characters in Journey worlds.
Non-renewable items include the following:
* Some blocks are created with the world, and may be quite plentiful, but cannot actually be crafted or otherwise created. This applies in particular to most Soil types, and to the Queen Bee and related items. This normally becomes an issue only when a player has explored the whole world, and undertakes to rebuild it entirely.
* Some items are found in specific Chests, of which a limited number spawn with a world, and a few of those cannot also be obtained by fishing. Most chests themselves are also non-renewable.
* A few items are created with the world in particular locations, and cannot otherwise be created in world. This includes furniture and materials from several fixed structures, notably the Dungeon, the Jungle Temple, the Underworld's Ruined Houses, and Altars. These structures also tend to include location-specific chests as above.
* Some types of natural Wall cannot be harvested or crafted by the player. In some cases, this is relevant to game mechanics and/or game balance.
* Any item which can only be acquired by crafting, and which requires a non-renewable item in all of its crafting recipes.
* Most NPC quest rewards are renewable, but there is a special case: The Fuzzy Carrot and the Angler armor set are one-time rewards, so each player in a world can only get one of each.
Non-renewable items are few enough that they can be listed individually. A few of those are "semi-renewable", produced by something that is plentiful but ultimately finite.
== Plentiful but Finite ==
* Clay, Silt, Slush, Desert Fossil, and Ash. This extends to items created from the above materials, including:
** Red Brick (clay) and Iridescent Brick (ash).
** The Amber Mosquito.
* Some types of natural Wall cannot be harvested by the player; even harvestable walls will no longer be considered "natural" if they are harvested and replaced.
** The Dungeon, Spider Cave, and Underground Desert (mini-)biomes are defined by the presence of their respective naturally generated walls.
* Hellstone and Hellstone Brick.
* Moss variants.
* The following items are non-renewable:
** Hardened Sand, Sandstone, Ice/Thin Ice, and Marble. This extends to items created from the above materials, including:
** Frozen and Marble Furniture sets.
** Ice Brick.
*** In , Ice, Hardened Sand, and Sandstone are renewable through the new White and Yellow Solutions.
*** In , Marble is renewable by transmuting renewable Granite in Shimmer.
*** In worlds where the appears, Silt, Slush, Hardened Sand, Sandstone, Ice, Ash, and Smooth Marble are all renewable through the mimic's "Stuff Cannon" attack
** Hive blocks are found only in hives in the Jungle. Since Hive (or a Larva, which is only generated with the world) is needed to summon the Queen Bee, this makes the Queen Bee's drops (except Bottled Honey), and any item made with Bee Wax (Bee armor, Beenade, Hornet Staff), plentiful but non-renewable.
*** In , Hive blocks can be created by throwing Honey Block or Crispy Honey Block into Shimmer.
** Other Bricks not listed above, mostly due to using Stone or Mud. Exceptions include Sandstone Brick (made from sand), Rainbow Brick (dropped by Rainbow Slime), and Snow Brick. If you are playing on pc, console, or mobile , you can use Shimmer to make the resources required to craft them from other renewable resources, thus making them renewable. The only truly non-renewable bricks for pc, console, or mobile are listed in other parts of the page.
** Chlorophyte Ore is created by replacing mud, which can be crafted from dirt, but is still technically non-renewable. In practice this makes chlorophyte "nearly unlimited", but it would conceivably be possible to deplete a world's mud/dirt. This likewise applies to Shroomite and Spectre Bars, which are made from chlorophyte. For tips on "farming" chlorophyte, see Guide:Farming Resources.
***In , Mud blocks can be made by dropping wood into Shimmer, then crafting the dirt produced into mud, allowing for infinite Chlorophyte growth.
** Flesh and Skyware furniture sets, due to using Stone.
** Gems are only either found placed in the world, or obtained from spending Silt, Slush, and Desert Fossils on an Extractinator. Therefore gems (including Amber), are non-renewable. Note that it is possible to deplete a world's Extractinator blocks, especially in a small world.
*** On the both gems and stone can be renewably farmed using Gemcorns.
** Non-craftable Statues.
== Location Specific Generation ==
A few items are created with the world in particular locations, and cannot otherwise be created in world. This includes (but is not limited to) furnishings and materials from several fixed structures, notably the Dungeon, the Jungle Temple, the Underworld's Ruined Houses. It also covers most of the special chests from these structures, and most Trap blocks.
* Varied Locations:
** Altars
** Many particular Paintings (see page for details)
** Several decorative Banners (see page for details)
** Assorted Chests (see page and/or list below)
** Terragrim
** The Enchanted Sword or Arkhalis.
*** On the , the Enchanted Sword comes from Crates, and the Arkhalis from Master Mode Treasure Bags.
** 
* Underground and Caverns:
** Geyser Traps
** Dart Traps
** Non-craftable Statues
** Sharpening Station
* Jungle Temple:
** Lihzahrd Bricks, and all matching furniture and statues
** Lihzahrd Pressure Plates and traps: Spiky Ball Trap, Flame Trap, Spear Trap, Super Dart Trap, Wooden Spike
** Lihzahrd Chest
*** Lihzahrd Furnace
** Lihzahrd Altar
* Dungeon:
** Dungeon Bricks and most associated Furniture.
** Water Bolt
** Valor (yo-yo) (in chests)
** Catacomb (painting)
** Alchemy Table
*** In the , Alchemy Tables can be fished in the Dungeon.
** Bone Welder (placed or in chests)
* Underworld:
** Hellforge
** Hellstone ore
** Obsidian Furniture (the few craftable pieces require hellstone ore, except platforms)
** see also "Shadow Chests" below.
* Sky Islands:
** Cloud blocks (including rain and snow cloud).
*** In the , cloud blocks can be found in Sky Crates and Azure Crates.
== Location-Specific Chests ==
Various special chests spawn with a world, and even those chests which have corresponding Crates have a few items which are not found in in the crates. In all cases, items are listed under only the first chest they appear in. All of the chests listed below are themselves uncraftable and non-renewable items. Some of these chests are common enough to qualify as "plentiful", but random chance can still fail to supply one of their items in a given world. 
In general, the non-renewability of these items extends to items crafted from them; the notable exception is Hermes and Flurry boots, whose upgrades can all be crafted with Sailfish boots.
* Gold Chest:
** Spear
** Mace
** Blowpipe
** Shoe Spikes
** Flare Gun
** Band of Regeneration
** Cloud in a Bottle
** Hermes Boots
*** Identical to the renewable Sailfish boots.
** Can Of Worms
*** The worms it contains are renewable.
** Herb Bag
*** The herbs and seeds it contains are renewable.
** Wooden Boomerang
*** In the , it is sold by the Skeleton Merchant.
** Enchanted Boomerang
*** In the , it can be crafted from the Wooden Boomerang.
** Wand of Sparking
*** In the , it is sold by the Skeleton Merchant.
** Magic Mirror
*** In the , it can be crafted at a Furnace.
** Lava Charm
*** In the , it can be found in Obsidian Crates and Hellstone Crates.
* Gold Chests in Pyramid:
** Pharaoh's Mask and Robe
** Flying Carpet
** Sandstorm in a Bottle
*** In the , it can be found in Oasis Crates and Mirage Crates.
* Frozen Chest items:
** Ice Mirror
** The following items are only non-renewable in the . In the , all of them can be found in Frozen Crates and Boreal Crates.
*** Ice Boomerang
*** Ice Blade
*** Ice Skates
*** Snowball Cannon
*** Blizzard in a Bottle
*** Flurry Boots
**** Identical to the renewable Sailfish Boots.
*** Ice Machine
**** In the , this item can also be bought from the Steampunker.
*** Fish
* Ivy Chest
** Bee Minecart
** Living Mahogany Wand
***In the , it can be obtained by shaking Jungle trees.
** Rich Mahogany Leaf Wand
***In the , it can be obtained by shaking Jungle trees.
** Honey Dispenser
*** In the , this item can be bought from the Steampunker when in the Jungle.
** The following items are only non-renewable in the . In the , they can both be found in Jungle Crates and Bramble Crates.
*** Seaweed
*** Flower Boots
* Living Wood Chest
** Ladybug Minecart
** Sunflower Minecart
** Living Wood Wand
***In the , it can be obtained by shaking Forest trees.
** Leaf Wand
***In the , it can be obtained by shaking Forest trees.
** Living Loom
*** In the , this item is sold by the Steampunker if the player has a Living Wood Wand in their inventory.
** Finch Staff
***In the , it can be obtained by tossing a Living Wood Wand into Shimmer.
* Water Chest
** Beach Ball
*** In the , this item is sold by the Party Girl.
** The following items are only non-renewable in the . In the , they can all be found in Ocean Crates and Seaside Crates.
*** Trident
*** Breathing Reed
*** Flipper
*** Water Walking Boots
* Web Covered Chest
** Web Slinger
* Shadow Chest
** Demonic Hellcart
** The following items are only non-renewable in the . In the , they can be found in Obsidian Lock Boxes, which can be found in Obsidian Crates and Hellstone Crates.
*** Dark Lance
*** Flamelash
*** Flower of Fire
*** Sunfury
*** Hellwing Bow
* Mushroom Chest items:
** Mushroom set
** Shroom Minecart
* Sandstone Chest
** Desert Minecart
** Encumbering Stone
* Dead Man's Chest
** Dead Man's Sweater
* Lihzahrd Chest
** Lihzahrd Furnace
* Skyware Chest items:
** Sky Mill
*** In the , this item is sold by the Steampunker.
* Biome Chests:
** Staff of the Frost Hydra, Piranha Gun, Rainbow Gun, Scourge of the Corruptor or Vampire Knives, and Desert Tiger Staff.
** In the , biome chests can be obtained by throwing the respective Biome Key into Shimmer.
=== Non-renewable Crafting Stations ===
It seems worthwhile to summarize those crafting stations which are non-renewable (as listed above).
* Lihzahrd Furnace
* Hellforge (and subsequently the Hardmode Forges)
* Alchemy Table
** In the , this item is renewable through fishing in the Dungeon.
* The following crafting stations are only non-renewable in the . In the , they are sold by the Steampunker if the player fulfills varying conditions.
** Bone Welder
** Honey Dispenser
** Ice Machine
** Living Loom
** Sky Mill
== Becoming Non Renewable as the Game Progresses ==
Some items may be renewable in a new world, but they become non renewable as the game progresses:
* Gray Zapinator is renewable from the Traveling Merchant Pre-Hardmode after any Boss kill, but it is replaced by Orange Zapinator in Hardmode.
* Bone Key becomes non renewable after defeating Skeletron.
* Cascade, renewable after defeating Skeletron, becomes non renewable in Hardmode as it's replaced by Hel-Fire.
* Town pet licenses become unavailable once a character used one in the world.
* Similarly, Demon Heart, Advanced Combat Techniques, Torch God's Favor, and the Artisan Loaf become unavailable for a character once they have used one.
* All Pre-Hardmode crates are replaced by their Hardmode versions, thus making them non-renewable in Hardmode.
** In the , they can be obtained by throwing their respective hardmode crate into Shimmer.