Blocks
If you are looking for the official page of vanilla blocks, click here.
Blocks are the primary components of every Terraria world. They make up nearly all of the game's terrain, with the preponderance of a particular block type in an area determining its biome. Nearly all blocks are collectible for use by players, and are mined with pickaxes, drills, or explosives. All block types can be stacked up to 9999 in a single inventory slot.
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. Soils are the only blocks that can be converted by the world evils and Hallow. All soils are destroyed by explosives.
Grass
Defiled GrassDefiled Jungle Grass
Edengrass
Peat Moss
Riven Grass
Riven Jungle Grass
Sootgrass
Stone
BatholithCompacted Scrap
Defiled Stone
Spug Flesh
Sulphur Stone
Sand
Defiled SandSilica
Sandstone
Brittle QuartzDefiled Sandstone
Hardened Sand
Hardened Defiled Sand BlockQuartz
Ice
Primordial PermafrostWhite Ice Block
Plants
Plants are often grown over time on top of soil blocks. They serve to enrich a biome decoratively and/or can be harvested as a material.
AcetabulariaBrineglow
Defiled Cactus
Eden Tree
Edenwood
Endowood
Exoskeletal Tree
Fungarust
Marrowick
Moonshine
Petrified Tree
Riven Cactus
Soulspore
Surveysprout
Wilting Rose
Wrycoral
Ores
Ores are found underground (with exception to some), certain types only in particular 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 as well.
Bleeding ObsidianCarburite
Eitrite Ore
Encrusted Ore
Felnum Ore
Lost Ore
Sanguinite Ore
Silicon Ore
Gem blocks
Chambersite GemstoneBricks and Crafted Blocks
Cancer BlockCancer Platform
Chambersite Gemspark
Edenwood Platform
Harmony Brick
Living Alkahest Block
Living Bile Block
Nova Brick
Nova Fragment Block
Nova Platform
Residue Block
Residue Platform
Other blocks
Amoeba FluidAngelic Cloud
Dusklight
Fiberglass Block
Geyser Core
Mildew
Twilith