# Vermiculite: Stocks

Patchy reserve data, led by the United States

Source page: https://www.materialinsights.org/commodities/vermiculite/stocks/

What this tab covers How much is left and how much is held. For minerals and energy: reserves, current output, years of supply and recycling for the top five countries. For farm commodities: production, ending stocks and stocks-to-use for the top five producers (USDA, October 2026). It also covers inventories and stockpiles.

#### Top five countries: reserves, output and years of supply

| Country | Reserves kt vermiculite | Current output kt vermiculite concentrate (mine, 2025e) | Years of supply | Recycling |
|---|---|---|---|---|
| **South Africa** | 14,000 | 160 | 88 | n/a |
| **United States** | 25,000 | 100 | 250 | n/a |
| **Brazil** | 6,600 | 50 | 132 | n/a |
| **China** | 2,900 | 40 | 73 | n/a |
| **Russia** | – | 40 | – | n/a |

 USGS MCS 2026, Vermiculite (world mine production and reserves table). Years of supply = reserves ÷ current output; reserves grow as prices and technology change, so this is not a countdown.

#### Recycling

USGS rates vermiculite recycling as insignificant, and no country figures exist. Turkey reports 11 Mt of reserves against 10,000 t of output, and India 1.6 Mt against 2,000 t (USGS 2026). Zimbabwe (30,000 t) and Uganda (20,000 t) produce but have no published reserves.

Reserve data are patchy. Reported reserves are 25 million t in the United States, 14 million t in South Africa, 11 million t in Turkey and 6.6 million t in Brazil. No world total is given, so a reserve life cannot be computed. The USGS warns that many figures may include host rock and overburden. US occurrences in five other states hold 2 to 3 million t of resources. Recycling is insignificant, and there is no stockpile.

Insignificant.

## Other sections

- [Summary](https://www.materialinsights.org/commodities/vermiculite/index.md)
- [Overview](https://www.materialinsights.org/commodities/vermiculite/overview/index.md)
- [Correlation](https://www.materialinsights.org/commodities/vermiculite/correlation/index.md)
- [Extraction](https://www.materialinsights.org/commodities/vermiculite/extraction/index.md)
- [Production](https://www.materialinsights.org/commodities/vermiculite/production/index.md)
- [Cycles](https://www.materialinsights.org/commodities/vermiculite/cycles/index.md)
- [Trading](https://www.materialinsights.org/commodities/vermiculite/trading/index.md)
- [Movement](https://www.materialinsights.org/commodities/vermiculite/movement/index.md)
- [Criticality](https://www.materialinsights.org/commodities/vermiculite/criticality/index.md)
- [Characteristics](https://www.materialinsights.org/commodities/vermiculite/characteristics/index.md)
- [Emissions](https://www.materialinsights.org/commodities/vermiculite/emissions/index.md)
- [Relationships](https://www.materialinsights.org/commodities/vermiculite/links/index.md)