The Making Of
The index

Every material,
every process

Filter by what a material is, or by where you meet it. Each page walks the full process with every figure sourced.

Type
Used in 21 materials
Metals

Iron & Steel

Iron ore is rust. Getting the oxygen back out takes 1,500 °C and a tonne of carbon — the whole decarbonisation problem in one sentence.

MetalAlloyBuildingTransport
1.85 billion tonnes a year
Metals

Copper

Rock that is more than 99% waste becomes the metal carrying electricity through almost everything you own.

MetalElectricalElectronic
0.5% ore → 99.99% cathode
Metals

Aluminium

The commonest metal in the crust, and one of the hardest to free from its ore. Smelting it is really a way of storing electricity.

MetalTransportPackaging
Recycling uses 5% of the energy
Metals

Nickel

Two unrelated rocks give the same metal by completely different routes — and most of the world’s supply comes from the harder one.

MetalTransportBuilding
Two ores, no shared process
Metals

Zinc

The metal that rusts on purpose: it corrodes so the steel it coats doesn’t. Winning the pure metal is so hard that most is made with electricity, not fire.

MetalBuildingTransport
~60% just protects steel
Metals

Cobalt

Over 98% surfaces as a by-product of copper and nickel, and about 73% comes from a single country — the battery metal the world can’t simply make more of.

MetalTransportElectronic
>98% is a by-product
Metals

Lithium

Abundant but rarely concentrated — it hides in rock and brine beside near-identical ions. Making it is a problem of separation, not mining.

MetalTransportElectrical
Separation, not mining
Metals

Platinum Group Metals

Six near-identical metals arrive together in traces — it can take 10–40 tonnes of rock and half a year to make one ounce of platinum.

MetalTransport
Up to 40 tonnes of rock per ounce
Metals

Silicon

Ordinary sand, climbed up a purity ladder — a furnace makes ~99% metal for alloys, a chemical route reaches nine-nines for chips, then adds impurities back.

MetalloidElectronicElectrical
From sand to 99.9999999% pure
Metals

Silver & Gold

Too unreactive to smelt and too dilute to see — and most silver is a by-product of mining something else. Both are rebuilt from dissolved rock to 99.99% pure.

MetalElectronic
Most silver is never mined on purpose
Construction

Cement & Concrete

The most-used manufactured material there is, made by taking a rock apart at 1,450 °C and letting it reassemble in water.

CompositeMineralBuilding
Its CO₂ comes from the rock, not the fire
Construction

Limestone & Lime

Burn it, slake it, leave it in the air, and it slowly turns back into stone. The one material that runs in a loop.

MineralBuildingFeedstock
The one material that returns to stone
Construction

Glass

Sand, soda ash and limestone melted together. What decides whether it becomes a window or optical fibre is how the melt is shaped.

Non-MetalCeramicBuildingPackaging
Same recipe, five different products
Energy & Chemicals

Sulphuric Acid

The most-produced chemical on Earth, and most of it begins as a pollutant someone had to clean up.

ChemicalFeedstockAgriculture
Most-produced chemical on Earth
Energy & Chemicals

Coal

The one industrial raw material nobody manufactures. What we do is find it, wash it, and split it three ways.

MineralFeedstock
Nobody manufactures it
Energy & Chemicals

Ammonia

Nearly half the world is fed by nitrogen pulled from the air — a reaction so hard it uses roughly 2% of global energy.

ChemicalAgricultureFeedstock
Feeds nearly half the world
Energy & Chemicals

Boron

Boron never occurs pure. The world digs borate minerals from two deserts, then dissolves and re-grows them as crystals of borax and boric acid.

MineralAgricultureFeedstock
The element you can’t mine
Energy & Chemicals

Phosphate Salts

Life can’t do without phosphorus and nothing replaces it. Freeing it from insoluble rock takes acid — and buries gypsum by the tonne.

ChemicalAgriculture
~5 tonnes of gypsum per tonne
Energy & Chemicals

Soda Ash

A simple powder the world can’t do without — yet there’s no clean way to get it: you either mine a rare mineral or build it from salt and limestone.

ChemicalMineralFeedstockBuilding
Mined or built, never simple
Energy & Chemicals

Natural Gas

Raw gas leaves the well wet and sour. Cleaning it to pipeline spec — then moving a gas that resists being moved — is the whole job.

FuelElectricalFeedstock
Fires power stations, feeds ammonia
Energy & Chemicals

Graphite

Battery-grade graphite is 99.95% pure carbon, reached from low-grade ore or from petroleum coke baked at 3,000 °C — which is why China controls the supply chain.

MineralElectrical
The anode in almost every battery