Perennial Ore

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Perennial Ore
  • Perennial Ore.png
  • Perennial Ore placed graphic
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
  • Pickaxe icon.png 200%
TypeBlockOreCrafting material
PlaceableTango Tick1.png
Use time14 Fast
Map color#C8FA64 ●
RarityRarity Level: 7
Tile value710
Sell 18 Silver Coin.png
Research100 required
Dropped by
Perennial Slime10-26100%

"Energized plant matter has formed in the underground."

Perennial Ore is a Hardmode ore which generates in Dirt and Stone Blocks in the Cavern layer after Plantera has been defeated, and is used to craft Perennial Bars at an Adamantite Forge or a Titanium Forge. It requires at least a Pickaxe Axe or a Drax to mine. It is also dropped by Perennial Slimes.



Crafting Station
Shimmer TransmutationShimmer Transmutation
Scoria OreScoria Ore1
Perennial OrePerennial Ore1

Used in


  • 16-28 Perennial Ores can be obtained from Jungle and Bramble Crates at a 20% drop chance after Plantera has been defeated.
  • Perennial Ore cannot be destroyed by explosives, even after Plantera has been defeated.
  • Unlike most other ores, it is visible without the use of the Spelunker buff as each block has a faint lime green glow.
  • Although Perennial Ore cannot generate in Pearlstone Blocks, Crimstone Blocks, or Ebonstone Blocks, it can still generate in Dirt Blocks in those biomes.


  • In botany, "perennial" plants are plants that live for more than two years.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Disabled custom tile merging behavior to prevent performance issues.
  • Decreased pickaxe resistance from 3 to 2.
  • Can now merge with Mud and Stone Blocks.
    • Increased vein sizes.
    • Resprited tile.
  • Now always immune to explosives, defeating Plantera will no longer allow it to be destroyed with explosives.
  • Should now appear above Life Crystals on the Metal Detector.
  • Increased sell price from 2 Silver Coin to 18 Silver Coin.
  • Increased pickaxe power requirement from 199% to 200%.
    • No longer blocked from spawning in the center of the world.
    • Now always shows up on the Metal Detector instead of not showing up until Hardmode.
    • Now uses the Rarity Level: 6 rarity instead of Rarity Level: 3.
    • Now emits light.
    • Now spawns after defeating Plantera instead of on world creation.
  • Changed map color from (#00C800 ●) to (#FF33CC ●).
    • Can now be blown up after defeating Plantera.
    • No longer appears on the Metal Detector before Hardmode.
  • Now spawns on world generation instead of after defeating The Slime God.
  • Can now be detected by the Metal Detector.
  • Now generates after defeating The Slime God instead of Calamitas.
  • No longer generates after killing Calamitas three times.
    • Can no longer be destroyed by explosives.
    • Now affected by Spelunker Potion.
  • 1.1: Introduced.