What Is Niobium, What Is It Used For,
and Why Does Brazil Have 98%?
Niobium has no name on the car dashboard, no label on the bridge deck. It is the ingredient nobody knows is there — until the day it is missing. This file answers, question by question, what niobium is, what it does in your daily life, why ~98% of world reserves sit in Brazil, and who controls this metal today.
01What is niobium?
Niobium is a silver-grey transition metal, symbol Nb, atomic number 41. It is ductile, highly corrosion-resistant, melts at 2,477 °C and becomes superconducting below 9.2 K. It occurs in the minerals pyrochlore and columbite, mainly in carbonatite rock — and roughly 98% of world reserves are in Brazil (USGS Mineral Commodity Summaries 2024–2026).
It was discovered in 1801 by Charles Hatchett, who named it "columbium" (Cb); it was renamed niobium — after Niobe, daughter of Tantalus — in 1844, and the IUPAC settled the name only in 1949. United States metallurgical standards still call it columbium. Its power lies in a rare combination: it melts at almost double the melting point of steel yet weighs about the same; below 9.2 K (−263.9 °C) it carries current with zero resistance — the only chemical element superconducting at industrial scale; and it forms a stable, inert oxide skin (Nb₂O₅) that makes it both corrosion-proof and biocompatible. It is not abundant: only about 20 parts per million of the Earth's crust, rarer than lead or tin.
In what forms is niobium sold?
In three commercial forms: Nb (the element) — pure metal (99.9%+) for implants and superconducting cavities; FeNb (ferroniobium) — an iron-niobium alloy with 60–65% Nb, the main traded product, used in steelmaking (Argus 2025 reference price: USD 48.68/kg FeNb); and Nb₂O₅ (niobium pentoxide) — the oxide, feedstock for advanced alloys, battery anodes, electronics and optics.
02Where is niobium found?
Almost all of the planet's economically viable niobium is in Brazil, which holds roughly 98% of world reserves — concentrated at Araxá (Minas Gerais) and Catalão (Goiás). Canada, in second place, holds about 1.9%; the rest of the world shares residual fractions. Brazil also supplies close to 90% of global production.
| Country | World niobium reserves | Where / note |
|---|---|---|
| Brazil | ~98% (≈11 million tonnes of contained Nb) | Araxá (MG) and Catalão (GO) · ~90% of global production |
| Canada | ~1.9% | Niobec mine (Quebec) · most of the remaining production |
| Rest of the world | <1% | Small deposits or hard to mine economically |
The reserve ratio between Brazil and the next country is on the order of 24 to 1. It is not merely where niobium exists — it is where it exists close enough to the surface to be mined economically.
Sources: USGS Mineral Commodity Summaries 2024–2026 · IBRAM · ANM · CBMM Technical Bulletin.
03Why does Brazil have almost all the world's niobium?
Pure geological accident: about 130 million years ago, mantle-derived magma crystallised in the Brazilian Shield forming carbonatites, and tropical laterization concentrated the mineral pyrochlore near the surface at grades of 2.5–3.0% Nb₂O₅ — six to ten times the global average. That is why Brazil holds ~98% of viable reserves.
Niobium is carried in two minerals: columbite (Fe,Mn)(Nb,Ta)₂O₆ and, above all, pyrochlore — which hosts the niobium in the great commercial deposits. Pyrochlore forms in carbonatites: rare alkaline igneous intrusions from the Earth's mantle. Prolonged tropical weathering (laterization) did the rest, enriching the ore at open-pit depth. Niobium exists in other countries, but rarely at a grade and depth that make mining pay — and that difference turns a geological curiosity into a natural monopoly.
04What is niobium used for in everyday life?
Over 90% of niobium becomes ferroniobium for the high-strength (HSLA) steel in bridges, pipelines, skyscrapers and cars. It is also in jet-engine turbines, the F-35, MRI scanners, the LHC, medical implants, next-generation batteries and the superconducting qubits of quantum computers.
Niobium does not appear on the labels. Historically 80–90% of it went into steel; by 2026 the split is roughly 75% steel / 25% new vectors — batteries, superalloys, electronics, biomedicine and quantum hardware. The six questions below map where it quietly holds the modern world together.
How does niobium strengthen the steel in bridges and buildings?
Over 90% of niobium goes into high-strength low-alloy (HSLA) steel. Just 100–400 grams of Nb per tonne refines the grain and raises strength by up to 30–60%, with better weldability and toughness. It builds longer-span bridges, thinner high-pressure pipelines, skyscrapers, wind towers and lighter car bodies. Users: ArcelorMittal, Nippon Steel, POSCO, Gerdau, Usiminas.
Why do MRI machines and the LHC depend on niobium?
Below 9.2 K, niobium carries current with zero resistance. Nb-Ti and Nb₃Sn are the dominant superconductors: the LHC at CERN runs 1,232 superconducting magnets at 1.9 K, the ITER fusion reactor uses Nb₃Sn coils generating a field ~250,000× the Earth's, and more than 30,000 MRI scanners worldwide each contain superconducting niobium wire. Without niobium, there is no MRI as we know it.
Is niobium used in missiles, jets, and hypersonic weapons?
Yes. The superalloy Inconel 718 (~5% Nb) forms the hot-section blades and discs of essentially every modern jet engine. Niobium alloy C-103 equipped the Apollo 11 Lunar Module nozzles and now serves on SpaceX engines, missile nozzles, the F-35 and hypersonic weapons. In the 1,100–2,000 °C range, niobium alloys have no practical substitute.
Is niobium used in electric cars and batteries?
Yes. The car industry consumes about 40% of all HSLA steel — the single largest end-use of niobium. Chassis, rails and impact bars use 0.03–0.05% Nb to cut vehicle weight 15–25% without losing safety. Electric vehicles, which carry heavy batteries, rely on Nb-HSLA to claw weight back; niobium-anode fast-charging batteries are in development with CBMM and partners.
Can niobium stay inside the human body?
It can — niobium is biocompatible and the body does not reject it. Alloys such as Ti-6Al-7Nb and Ti-45Nb (elastic modulus close to bone) are used in hip and knee implants, bone screws, dental implants, pacemakers, defibrillators, coronary stents and cochlear implants. Producers include Zimmer Biomet, Stryker, Medtronic and Straumann.
What does niobium have to do with your phone and quantum computers?
Niobium-oxide capacitors sit in smartphones, laptops, 5G base stations and data centres. Lithium niobate (LiNbO₃) is the standard material for high-speed optical modulators. And niobium Josephson junctions are the irreducible component of the superconducting qubit — the architecture of IBM, Google and Rigetti quantum computers. No niobium, no stable qubit.
Sources: USGS 2024–2026 · CBMM · CERN (LHC/HL-LHC Superconducting Magnets, 2024) · GE HealthCare 2025 · IBM Quantum · peer-reviewed metallurgical and biomedical literature.
05Is niobium worth more than gold?
No. Ferroniobium trades at about USD 48.68/kg (Argus 2025 reference), while gold is worth far more per kilogram. The popular claim that "niobium is worth more than gold" is false on price — but right about the essential point: niobium's value is strategic, because it has no practical substitute and almost all of it sits in one country.
Gold has thousands of sources and a liquid global market; niobium has three relevant mines in two countries and roles in which nothing replaces it: HSLA steel, turbine superalloys and superconductors. That combination — technical irreplaceability plus ~98% of reserves in Brazil — is why governments treat a metal worth less than fifty dollars a kilogram as a national-security asset. Niobium is not rare as a price; it is rare as leverage. That is also why niobium appears on the final 2025 US List of Critical Minerals and as a strategic raw material under the EU Critical Raw Materials Act.
06Is niobium good for jewelry and sensitive skin?
Yes. Niobium is hypoallergenic, nickel-free and biocompatible — the same inert oxide layer (Nb₂O₅) that lets it live inside the human body makes it safe for sensitive skin and fresh piercings. Anodizing turns that oxide into vivid blues, purples and golds with no dyes or coatings, which is why piercers and jewelers prize it.
Niobium vs titanium: both are implant-grade metals that rarely cause skin reactions. Titanium is lighter and harder; niobium is denser, softer to work, and is normally sold at 99.9%+ purity rather than as an alloy — so there is no nickel anywhere in the piece — and its anodized colors run deeper. For sensitive ears either works; jewelry, however, is a tiny fraction of demand next to steel.
07Why do the US and China depend on niobium from Brazil?
Because there is no alternative: the United States imports 100% of the niobium it consumes, holds no strategic stockpile, and the GAO ranks it among the 14 most supply-chain-vulnerable minerals. China secured direct access by buying the Catalão mine in 2016. Europe lists niobium as a strategic raw material under the Critical Raw Materials Act.
98% · 2% · 0%
If a single country holds ~98% of the planet's niobium reserves and supplies ~90% of production, the reserve is not just geological — it is strategic leverage. Yet Brazil taxes it at a 2% CFEM royalty (Norway charges up to 78% on oil) and exercises no sovereign strategy over it.
Sources: USGS Mineral Commodity Summaries 2024–2026 · US DoD Critical Minerals Strategy · GAO-22-104850 · EU Critical Raw Materials Act · German LkSG · CSDDD · HKEX 3993 filings · CMOC Annual Reports.
08Who controls Brazil's niobium?
Two companies: Brazil's CBMM (Araxá, Minas Gerais), with about 75% of global supply, and Chinese-controlled CMOC Group Limited (HKEX:3993), with 15–20% from the Catalão / Boa Vista mine in Goiás. CMOC's ferroniobium is sold worldwide through its Geneva subsidiary IXM S.A.
Almost all of the world's niobium comes from three mines in two countries. CMOC acquired the niobium and phosphates businesses of Anglo American in Brazil in 2016 for roughly US$1.5 billion — a single transaction that placed up to a fifth of the world's niobium capacity under Chinese control, entirely within Brazil, beyond the reach of any foreign-investment review such as CFIUS.
Boa Vista's niobium is sold exclusively to IXM at an intra-group price that is never disclosed; because the 2% CFEM royalty is levied on net revenue, the unanswered question is whether the base is the internal CMOC→IXM transfer price or the real Argus market price paid by the final buyer.
09How much does niobium cost?
Ferroniobium — the form in which most niobium is traded — costs about USD 48.68 per kilogram (Argus 2025 reference); pure niobium metal and high-purity Nb₂O₅ cost several times more. There is no exchange listing: prices are set in long-term producer contracts, and ~90% of production comes from Brazil — so concentration, not scarcity, drives the price risk.
Per product, the cost is almost invisible: just 100–400 grams of niobium per tonne of steel makes cars, bridges and towers up to 30–60% stronger and vehicles 15–25% lighter — for pennies. A lighter car burns less fuel; a thinner pipeline carries the same pressure with less steel. The reverse also holds: with supply concentrated in three mines in two countries — and ~90% in one — a disruption at Araxá or Catalão would ripple within weeks into the price of cars, construction, energy and medical equipment. That is why the US, the European Union and China treat an additive measured in grams per tonne as a matter of economic security.
10Who controls the niobium of Catalão?
The Boa Vista mine at Catalão (Goiás) has been operated since 2016 by CMOC Group Limited (HKEX:3993), which has extracted 86,548 tonnes of niobium (FeNb) between 2016 and Q1 2026 — an estimated cumulative revenue of ~US$3.5 billion — while ownership of the land remains in dispute before the courts of Goiás.
This page is a mineral file; the case is documented in the platform's other sections. In sober summary: the elderly co-owner of the land, Glória Duarte (81 years old, blind, widow), lives on about US$180 a month; the litigation has run in the courts of Goiás since 2015; and no provision has been recorded under accounting standard IAS 37 (R$0.00) across ten financial years. Anyone who wants to examine the documents can start here:
From the mineral to the case: the 21 documented violations → · who is exposed → · the full dossier →
11What else do people ask about niobium?
- What is niobium?
- A silver-grey transition metal, symbol Nb, atomic number 41. It is ductile, corrosion-resistant, melts at 2,477 °C and becomes superconducting below 9.2 K. It occurs in the minerals pyrochlore and columbite, mainly in carbonatite.
- What is niobium used for in everyday life?
- Over 90% becomes ferroniobium for the HSLA steel of bridges, pipelines, skyscrapers and cars; the rest goes to jet engines, the F-35, MRI scanners, the LHC, medical implants, batteries and quantum-computer qubits.
- Where is niobium found?
- About 98% of world reserves are in Brazil (Araxá and Catalão); Canada holds ~1.9% and the rest of the world residual fractions. Brazil supplies ~90% of global production.
- Why does Brazil have almost all the world's niobium?
- Geology: carbonatites crystallised in the Brazilian Shield were enriched by tropical laterization to grades of 2.5–3.0% Nb₂O₅ — six to ten times the global average, close to the surface.
- Is niobium rare?
- Yes — about 20 parts per million of the Earth's crust, rarer than lead or tin. But the decisive scarcity is geographic: roughly 98% of viable reserves sit in a single country, Brazil.
- Is niobium a critical mineral?
- Yes. It is on the final 2025 US List of Critical Minerals (USGS/Federal Register) and is a strategic raw material under the EU Critical Raw Materials Act; the US imports 100% of its supply.
- Is niobium worth more than gold?
- No. Ferroniobium trades at about USD 48.68/kg (Argus 2025), far below gold. Its value is strategic: irreplaceable in critical applications, with ~98% of reserves in a single country.
- Is niobium good for jewelry and sensitive skin?
- Yes — hypoallergenic, nickel-free and implant-grade biocompatible; anodizing gives vivid colors without dyes. Versus titanium: niobium is denser, softer and takes deeper colors; both are safe for sensitive skin.
- Is niobium used in missiles, jets, and hypersonic weapons?
- Yes. Inconel 718 (~5% Nb) is in essentially every jet engine; alloy C-103 equipped Apollo 11 and serves on missile nozzles, the F-35 and hypersonic weapons. Each F-35 contains about 200 kg of niobium.
- Is niobium used in electric cars and batteries?
- Yes. EVs use Nb-HSLA steel to cut 15–25% of weight, and fast-charging batteries with niobium anodes are in development with CBMM and partners.
- Why do the US and China depend on niobium?
- The US imports 100% of what it consumes, with no strategic stockpile; China depends on the Catalão mine operated by CMOC (HKEX:3993); the EU lists it as a strategic raw material under the CRMA.
- How much does niobium cost?
- Ferroniobium trades at about USD 48.68/kg (Argus 2025 reference); pure metal and high-purity oxide cost more. There is no exchange listing — prices are set in producer contracts, and ~90% of production from Brazil concentrates the supply risk.
- Who controls Brazil's niobium?
- CBMM (Araxá, ~75% of supply) and CMOC (HKEX:3993, ~15–20%, Catalão / Boa Vista), whose ferroniobium is sold through the Geneva subsidiary IXM. The CFEM royalty is 2%.