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Platinum-group metals (PGMs) are six rare metals—platinum, palladium, rhodium, ruthenium, iridium and osmium—that share useful chemical and physical traits and often occur together in nature. They matter because their catalytic activity, resistance to corrosion and performance at high temperatures make them useful in vehicle emissions systems, industrial processes, electronics, glassmaking, medical applications and jewelry. They can also be recovered from scrap, especially end-of-life catalytic converters. The group is not one interchangeable material: the element, alloy and job determine which properties matter.
What are the six platinum-group metals?
The six platinum-group metals (PGMs), also called platinum-group elements (PGEs), are platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), iridium (Ir) and osmium (Os). The names refer to a group of elements, not a single metal or a standard alloy. The U.S. Geological Survey (USGS) describes them as metals with similar physical and chemical properties that tend to occur together in nature.
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PGMs are among the rarest metals in Earth’s crust. USGS reports platinum at about 0.0005 parts per million (ppm) in the upper crust. That is a crustal-abundance figure—not the concentration in an ore deposit, the amount available to mine, or a measure of how much platinum is in a finished product. More than 100 minerals have a PGE as an essential component, according to USGS.
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Which properties make PGMs useful?
PGMs are valued for a combination of catalytic activity, corrosion resistance and tolerance for heat. Their melting points are high; some PGE alloys can be hard and durable, while platinum is notably resistant to tarnishing. These are group-level descriptions, not a guarantee that every metal has the same performance in every environment. The Geoscience Australia overview also identifies high melting points, corrosion resistance and catalytic properties as characteristic features.
- Catalytic activity: A catalyst helps a chemical reaction proceed without being consumed in the same way as a reactant. This makes PGMs useful in emissions control and in industrial chemical processes.
- Corrosion resistance and chemical stability: These qualities can matter when equipment is exposed to reactive substances or demanding operating conditions. The right choice still depends on the particular metal, alloy, temperature and chemical environment.
- Heat performance: High melting points and thermal resistance support applications involving elevated temperatures, including some industrial processes and glass production.
- Hardness, durability and appearance: PGE alloys can be durable, and platinum’s resistance to tarnishing contributes to its use in jewelry. An alloy’s properties depend on its composition.
These properties are useful in construction-related supply chains even when the metal is not a visible building material. For example, glassmaking and electronics are among the documented applications, while industrial catalysts support chemical production and petroleum refining. The evidence supports those broad uses; it does not establish that PGMs are commonly used as structural metals in buildings.
What are platinum-group metals used for?
The largest domestic use category identified in the 2026 USGS summary is catalytic converters that reduce harmful automobile emissions. PGMs also serve specialized roles in chemical manufacturing, refining, electronics, glass production, medicine, jewelry and fuel-cell technologies. The application is specific to the element or alloy; a general label such as “platinum-group metal” is not enough to identify a material’s function.
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| Application | How PGMs are used | Why the application matters |
|---|---|---|
| Vehicle emissions control | Platinum, palladium and rhodium are used in catalytic converters, in varying proportions. | The catalysts help reduce harmful exhaust emissions. Substitution among these metals can occur in response to price and supply conditions. |
| Chemical manufacturing | Platinum or platinum-rhodium catalysts are used in nitric-acid production. | Nitric acid is used in fertilizer, explosives and other industrial production. |
| Petroleum refining and petrochemicals | Platinum catalysts are used in refining and petrochemical processes. | Catalysis supports industrial chemical transformations. |
| Electronics | Uses include computer hard disks, integrated circuits and multilayer ceramic capacitors. | These are specialized component applications, rather than evidence that PGMs are a general-purpose wiring or building material. |
| Glass production | PGMs are used in fiberglass and flat-panel or liquid-crystal display production. | The metals support manufacturing processes for glass and display products. |
| Medicine | Platinum is used in some medical implants and cancer-fighting drugs. | These are distinct medical applications; not every platinum product or alloy is suitable for medical use. |
| Jewelry | Platinum alloys are used for jewelry. | Color, strength and tarnish resistance are useful attributes. |
| Hydrogen and fuel cells | PGMs have fuel-cell applications. Platinum, ruthenium and iridium are relevant to some processes in the emerging hydrogen economy. | These are documented areas of use, but the available evidence does not establish them as the dominant current market for PGMs. |
PGMs also have an investment-product use: platinum, palladium and rhodium are traded in physical forms such as coins and bars, as well as through financial instruments. That describes a market category, not a recommendation to buy or an assessment of any particular investment.
Why do PGMs occur together, and where are they found?
PGMs occur naturally as native metals and in minerals combined with other elements. USGS reports more than 100 minerals with a PGE as an essential component. Economically important mineralization is associated especially with igneous settings, including layered mafic-to-ultramafic intrusions and magmatic nickel-copper-PGE deposits; some placer deposits also occur.
Prominent geological settings discussed by USGS include South Africa’s Bushveld Complex, Zimbabwe’s Great Dyke and Russia’s Norilsk-Talnakh area. These are examples of major settings, not a complete list of every deposit or producing region. The fact that PGMs commonly occur together also does not mean every deposit contains the same mix or that each metal can be recovered in equal amounts.
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Mining and refining supply is only part of the picture: recycled material is another source. Production statistics must be read with their scope in mind. In the 2026 report’s estimates for 2025, South Africa remained the leading producer of PGM-containing mined material, while Russia was the leading mined-palladium producer. USGS estimated the value of U.S. production at $290 million in 2025 and noted declines associated with operational conditions. Those figures describe particular national production measures and a particular year; they are not a complete accounting of global refined supply.
How are platinum-group metals recycled?
PGMs can be recovered from end-of-life catalytic converters, jewelry and electronic equipment. Recycling makes scrap a meaningful secondary supply source, but the reported recovery figures refer to industrial processing—not a safe or practical do-it-yourself method for extracting metals at home.
In its 2026 Mineral Commodity Summaries report, USGS estimated that about 140,000 kilograms of palladium and platinum combined were recovered globally from new and old scrap in 2025. That total is for two metals, not all six PGMs. For U.S. automobile catalytic converters, USGS estimated 2025 recovery of about 50,000 kilograms of palladium and 8,600 kilograms of platinum. These are estimates for 2025 published in 2026, not live totals or current-year forecasts.
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Recycling matters because it returns valuable material from products that have reached the end of their service life. It also means a supply discussion should distinguish newly mined material from recovered scrap. The sources establish the feed streams and reported quantities, but do not provide consumer processing instructions or a detailed account of industrial extraction and refining steps.
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What did PGMs cost in 2025?
USGS reported estimated 2025 average prices per troy ounce for five PGMs. These are annual estimates published in the 2026 summary, not current spot prices. Prices can change, and the figures should not be used as a live quote or as a direct valuation of scrap, ore or a finished product.
| Metal | Estimated 2025 average price per troy ounce |
|---|---|
| Palladium | $1,100 |
| Platinum | $1,200 |
| Iridium | $4,400 |
| Rhodium | $5,800 |
| Ruthenium | $690 |
Prices checked November 2026.
The summary does not list an estimated 2025 average price for osmium in the supplied figures, so no price is stated here. A simple ranking by price would also not tell a reader which metal is suitable for a particular process or product: that depends on the required performance, form, supply source and operating conditions.
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How should you compare one PGM with another?
Start with the application, not a generic “best metal” ranking. The sources identify different roles and properties, but do not support declaring one PGM universally superior.
- Name the exact element or alloy. “PGM” identifies a family, not a material specification.
- Identify the required property. Is the priority catalytic activity, corrosion resistance, heat performance, durability or appearance?
- Define the end use. A vehicle emissions catalyst, glass-production application and jewelry alloy each impose different needs.
- Separate primary and recycled supply. Scrap recovery is a significant source, but it is not the same measure as mined production.
- Attach a place and year to market figures. Production, recovery and price statistics are meaningful only with their geography, definition and reporting period.
This approach avoids two common mistakes: treating all six metals as interchangeable because they share a group name, and treating a price or abundance statistic as if it alone determined practical value.
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Are platinum-group metals the same as precious metals?
The terms overlap in ordinary usage, especially for platinum and palladium, but they describe different ideas: “platinum-group metals” is a defined set of six elements, while “precious metal” is a broader commercial or cultural category. The group name alone does not tell you how a particular metal is classified for a specific market or regulation.
Can I recover platinum from an old catalytic converter myself?
The cited recovery figures describe industrial secondary supply, not a household extraction method. Catalytic converters are components intended for appropriate end-of-life handling, and the sources do not provide safe consumer processing instructions; use a legitimate vehicle or scrap-recycling channel instead.
Does platinum’s crustal abundance tell me how much is in a catalytic converter?
No. The 0.0005 ppm figure refers to platinum in Earth’s upper crust, while a converter is a manufactured product with a specific metal loading. The crustal statistic cannot be used to estimate the amount in a particular part.
Are platinum-group metals used as structural materials in buildings?
The documented uses here are mainly catalysts, electronics, glassmaking, medical applications, jewelry and fuel-cell technologies. The evidence does not support describing PGMs as common structural building materials, even though some of their industrial uses are relevant to construction supply chains.
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