Adamantine

TTRPG Fictional · Legendary · Timeless

The hardest substance known to exist, extracted from meteoric ore found only in the deepest reaches of the earth. Adamantine cannot be worked by ordinary means. Only master smiths with specialized tools and prolonged heat can shape it at all.

Identity

Source
Tabletop RPG tradition
Aliases
Adamantite, Worldstone

Physical Properties

Appearance
Absolute black with faint blue-violet veining, almost absorbs light entirely
Luster
Metallic
Density
12 g/cm³
Melting point
5500 °C
Lighter
Lead
Denser
Palladium
Magnetism
Non-magnetic
Electrical conductivity
Low

Mechanical Properties

Mohs hardness
12
Softer
Uru
Workability
Impossible
Brittleness
Tough
Malleability
Very Low
Ductility
Very Low

Chemical Properties

Corrosion resistance
absolute
Reactivity
none

Lore & Narrative

Weapons of adamantine are said to cleave through lesser materials as if they were not there. Armor of the same metal stops blows that would shatter anything else. Its rarity means most adamantine items are ancient, and newly forged pieces are almost unheard of.

Notable uses
Siege weapons, impenetrable armor, vault doors, unbreakable chains
Forge uses
armor, weapons, siege equipment, containment
Worldbuilding traits
indestructible, meteoric, Ancient, rare

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