Deepcoral Metal
TTRPG Fictional · Rare · Timeless
Found in the deepest ocean trenches at pressures that would crush ordinary materials, deepcoral metal forms when mineral-saturated water seeps through the skeletons of massive abyssal organisms over millennia, replacing organic matter with a metallic matrix. It is harvested by deep-sea entities as currency.
Identity
- Source
- Original by MGS
- Also known as
- Abyssal coral, Pressure-iron, Tidewrought
Physical Properties
- Appearance
- Deep crimson-purple with a branching organic texture: it looks grown rather than forged, with visible chamber structures like coral cross-sections
- Luster
- Waxy
- Density
- 5.8 g/cm³
- Melting point
- 1800 °C
- Lighter
- Sunmetal
- Denser
- Vanadium
- Magnetism
- Non-magnetic
- Electrical conductivity
- Medium
Mechanical Properties
- Mohs hardness
- 8
- Tensile strength
- 600 MPa
- Softer
- Tungsten
- Harder
- Chromium
- Workability
- Moderate
- Brittleness
- Tough
- Malleability
- Moderate
- Ductility
- Moderate
Chemical Properties
- Corrosion resistance
- Absolute
- Reactivity
- None
Lore & Narrative
Deepcoral metal cannot be submerged without becoming temporarily malleable, since pressure and seawater trigger a molecular relaxation that allows reshaping. Sea-dwelling smiths exploit this to repair deepcoral equipment without furnaces. On land, it is hard as stone and impossible to reshape without exceptional heat.
- Notable uses
- Aquatic armor, deep-sea tools, merfolk currency and weapons
- Forge uses
- Aquatic armor, Deep-sea tools, Aquatic weapons
- Worldbuilding traits
- Aquatic, Pressure-responsive, Organic-origin, Abyssal
Sources
- Original to this catalogue, Michael Ghelfi Studios
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