Mirrorplate

TTRPG Fictional · Rare · Timeless

An alloy whose surface achieves and maintains perfect specular reflection regardless of damage, age, or environment. More significantly, mirrorplate reflects not just light but magical effects: illusions cast at a mirrorplate surface are reflected back at their caster. It is the armor of choice against mages.

Identity

Source
Original by MGS
Aliases
Perfect reflection metal, Vanity steel, Truth-mirror alloy

Physical Properties

Appearance
Perfect mirror finish that cannot be scratched, dulled or distorted, with a reflection more accurate than any manufactured mirror
Luster
Adamantine
Density
9 g/cm³
Melting point
1900 °C
Boiling point
3400 °C
Lighter
Copper
Denser
Ferrum Caeleste
Magnetism
Non-magnetic
Electrical conductivity
Very High

Mechanical Properties

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

Chemical Properties

Corrosion resistance
absolute
Reactivity
none

Lore & Narrative

Mirrorplate has one profound weakness. It shows everything. A warrior wearing mirrorplate cannot disguise their approach, cannot hide in shadows, and cannot benefit from any concealment. Every reflection reveals their position perfectly. Assassins who wear mirrorplate are either very confident or very foolish.

Notable uses
Anti-mage armor, scrying surfaces, truth-compelling ritual objects
Forge uses
anti-magic armor, scrying, ritual objects
Worldbuilding traits
reflective, anti-magic, revealing, tactical

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