Ancient Bone Dust

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Ancient Bone Dust
  • Ancient Bone Dust.png
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
TypeCrafting material
RarityRarity Level: 1
Sell 1 Silver Coin.png
Research5 required
Dropped by
Armored Skeleton
Skeleton Archer
120% / 33.33% Expert Mode
Overloaded Soldier1100%
Ravager (On the Get fixed boi seed)1-9999100%

The Ancient Bone Dust is a Pre-Hardmode crafting material dropped by various Skeleton-type enemies. It is used to make the Archaic Powder, Armor Polish, Duststorm in a Bottle and Calcium Potions.


Used in


  • 5-8 Ancient Bone Dust can additionally be obtained from Iron and Mythril Crates at a 25% drop chance.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Increased drop rate from 20% / 25% Expert Mode to 20% / 33.33% Expert Mode.
  • Fixed it only being dropped by a few specific Skeletons instead of all of them.
    • Can now be dropped by Armored Skeleton.
    • Removed tooltip "Very old".