Ferrum Caeleste

Mythological · Legendary · Ancient

Plutarch tells that in the eighth year of Numa's reign, while a plague ran through Rome, a bronze shield fell from heaven into the king's hands, and the plague stopped. Ovid adds that Jupiter had promised it as a pledge of empire and that the fate of Rome was bound up with it; he names no metal. Ferrum caeleste, heavenly iron, is this catalogue's name for a metal that falls that way: no ancient text uses it.

Identity

Source
Modern name, after the ancile of Roman legend
Also known as
Celestial iron, Fer du ciel, Divine iron

Physical Properties

Appearance
White-gold luminosity with faint star-like sparks visible within the metal grain at certain angles
Luster
Metallic
Density
9.5 g/cm³
Melting point
3800 °C
Boiling point
7000 °C
Lighter
Vibranium
Denser
Bismuth
Magnetism
Ferromagnetic
Electrical conductivity
High

Mechanical Properties

Mohs hardness
9
Tensile strength
2800 MPa
Softer
Chromium
Harder
Divine Bronze of Hephaestus
Workability
Difficult
Brittleness
Tough
Malleability
Moderate
Ductility
Moderate

Chemical Properties

Corrosion resistance
Absolute
Reactivity
None

Lore & Narrative

Numa had the smith Veturius Mamurius make eleven copies so that no thief could tell the true shield from the others, and founded the Salii to keep all twelve; each March they danced with them through the streets. In this catalogue, the metal is iron fallen from the stars that a god sends to one smith in a generation, and a city that loses it loses its luck.

Notable uses
Divine shields, sacred weapons of generals, temple offerings
Forge uses
Divine shields, Sacred weapons
Worldbuilding traits
Divine, Roman, Meteoric, Protective

Sources

Browse the Metal Encyclopedia — MGS Toolbox