Cerulean Hydrogen — The New Hydrogen Classification

A world-first standard for ethical, geochemical hydrogen generation

A New Colour for a New Era of Hydrogen

For decades, hydrogen has been described using colour categories — green, blue, grey, white — each referring to how the hydrogen is produced.
But none of these classifications describe hydrogen generated by replicating Earth’s own geochemical process of serpentinization in a safe, oxygen-free reactor.

To fill this scientific gap, The Auri Project introduces a new category:

Cerulean Hydrogen

What Is Cerulean Hydrogen?

Cerulean Hydrogen
Hydrogen produced through engineered analogues of natural serpentinization, using iron-bearing minerals and de-oxygenated water in a sealed, oxygen-free reactor.
This process requires minimal external energy input, yields carbon-negative mineral by-products, and is distinct from subsurface extraction.

Pronunciation: suh-ROO-lee-uhn

Why a New Classification Was Needed

Existing colour classes describe:

  • fossil-based hydrogen,

  • electrolysis-based hydrogen, or

  • naturally occurring geologic hydrogen.

But none describe hydrogen produced by geochemically replicating Earth’s natural water–rock reactions without drilling into the planet.

Cerulean Hydrogen marks the creation of a new scientific and ethical domain:

  • engineered geologic hydrogen,

  • low-energy,

  • carbon-negative,

  • environmentally respectful,

  • globally scalable,

  • planet-friendly.

This is not white hydrogen.
This is not green hydrogen.
This is something entirely new.

Auri-Generated Cerulean Hydrogen (The Auric Standard)

The Auri Project sets the gold-standard implementation of Cerulean Hydrogen:

Auri-Generated Cerulean Hydrogen

Hydrogen produced via The Auri Process — following the Auric Standard of planetary ethics, non-interference with Earth’s subsurface systems, oxygen-free safety architecture, and carbon-negative mineral stewardship.

This distinction matters because it mirrors scientific convention:

  • A category (Cerulean Hydrogen)

  • A standard-setting implementation (Auri-generated)

Just as PEM electrolysis is a subset of green hydrogen,
the Auri Process is a subset of Cerulean Hydrogen.

Why Cerulean? A Colour Rooted in Nature

The term cerulean evokes:

  • deep ocean hydrothermal fields like the Lost City,

  • the blue–teal environment where natural hydrogen is born,

  • water–rock purity,

  • calm geochemical cycles,

  • the Auri Project’s signature colour palette.

Cerulean represents the Earth’s natural breath, transformed into energy without harm.

A Planet-Friendly Hydrogen Pathway

Cerulean Hydrogen provides benefits unmatched by any other category:

✔ Carbon-negative mineral cycle

Creates magnetite and brucite that naturally capture CO₂.

✔ No drilling or extraction

Protects Earth’s natural hydrogen cycle.

✔ No oxygen in the system

Eliminates explosion risk and oxidation loss.

✔ Low energy requirements

Geochemistry, not electricity, drives the reaction.

✔ Globally scalable

Requires only abundant minerals and clean water.

✔ Ethically aligned

Rooted in planetary stewardship and non-interference.

The Birth of a Global Scientific Standard

Cerulean Hydrogen is more than a colour.

It is:

  • a scientific definition,

  • a philosophical stance,

  • an ethical framework,

  • and a new chapter in hydrogen’s global classification system.

Engineered serpentinization now has a name.
And the world has a new path forward.