Blocks



Blocks are the main components a Terraria world is made of. They almost entirely make up the game's foreground objects. There are many types of blocks, both natural and crafted ones, and the presence of certain blocks are what largely determine biomes. The most common blocks are dirt and stone. Almost all block types have a wall version which also can be reverted back to the block it was made of.

As of 1.2, nearly all blocks can be collected with a Pickaxe or Drill (Drills are not available until the world enters Hardmode). Unusual blocks may require higher-grade Tools to mine. Blocks can also be transformed into bottom half-blocks and 45 Degree Right angled triangles with a Hammer.

The only blocks that cannot be mined with a Pickaxe or Drill are any blocks directly below a Tree, Chest or Demon Altar/Crimson Altar. In these cases the tree would have to be removed with an Axe, the chest with a Pickaxe or Drill (after emptying it), and the altar with a Pwnhammer (or any stronger hammer) first. Additionally, every Block with any kind of Grass (or Moss) growing on it cannot be mined before the Grass is destroyed and only the Dirt or the Mud it grew on remains. With powerful Pickaxes/Drills, this happens so fast that grassy blocks appear to be mineable.

Nearly all blocks stack to 999 as of 1.2.3.

Naturally Occurring Blocks
These blocks are created when the world is spawned. Though few of them are renewable, more can always be found by generating new worlds.

Soils
Soils are the most accessible type of block in the game, and they make up the majority of the world. Many of them grow Plants naturally. All soils stack up to 999 and can be mined with a Copper Pickaxe or Tin Pickaxe (except for the Stone variants as noted below). All soils are destroyed by explosives.

Grown Blocks
These blocks drop when their respective plant is looted from the environment using an Axe or Chainsaw. Once in the player's inventory, they can be placed like other blocks and looted with a Pickaxe like all other blocks. All grown blocks stack up to 999 and, once placed, can be destroyed by explosives and mined with any Pickaxe or Drill.

Other Found Blocks
These blocks are found in different parts of the world.

Trap Blocks
Trap blocks are likewise found throughout the world. Unlike other blocks they feature special abilities which can be activated by a trigger through Wire.

Ores
Ores are found underground, some types only in certain biomes. They are used in the crafting of Bars, which in turn are used to craft Weapons, Armor, Furniture, and more. Many are used to make Bricks or other blocks.

Gem Blocks
Gems are valuable materials that can be found in veins underground. They can be found in two forms; as gem blocks embedded in Stone Blocks or on the sides of Stone Blocks, or as background objects placed onto Stone Blocks. Mining either version will provide the respective gem type. Gem blocks cannot be created by the player as placing a mined gem will always create the background version.

Amber is also a gem, but can only be obtained from Silt or Slush.

Bricks
Bricks are a specific type of crafted block with a repeating rectangular pattern. Though many bricks are crafted from ores and soils, some can only be looted from the environment (or in one case, monsters). All Bricks have the word 'Brick' in their name except for one: the Mudstone Block.

Bricks have no sell value. All crafted bricks are made using a Furnace.

Crafted Only
Unlike Bricks, these blocks are solely obtained through crafting at a crafting station.

Purchased Blocks
These blocks are bought from NPCs.

Looted Blocks
These blocks are looted from drops or the environment in some way.