# Diatomite: Stocks

Enough fossil silica for the foreseeable future

Source page: https://www.materialinsights.org/commodities/diatomite/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 diatomite | Current output kt diatomite (mine or processed, 2025e) | Years of supply | Recycling |
|---|---|---|---|---|
| **United States** | 250,000 | 720 | 347 | n/a |
| **Denmark** | – | 380 | – | n/a |
| **France** | – | 250 | – | n/a |
| **Argentina** | – | 190 | – | n/a |
| **Turkey** | 44,000 | 150 | 293 | n/a |

 USGS MCS 2026, Diatomite, 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

US output is processed ore sold or used; Denmark's includes moler. China produced 140 kt with 120,000 kt of reserves (857 years). USGS reports no recycling. The EU end-of-life recycling input rate is 4% (EU CRM 2023). No India rate was found.

Reserves are large, and resources of crude diatomite are adequate for the foreseeable future. Reported reserves include 250 million t in the United States, 120 million t in China and 57 million t in Spain. A reserve life is not meaningful. The USGS reports no recycling, and spent filter cake is generally discarded. The EU's end-of-life recycling input rate is 4%. There are no strategic stockpiles or exchange inventories.

#### Recycling
 End-of-life recycling input rate in the EU: 4% of demand met from post-consumer scrap (EU CRM study 2023).

None.

## Other sections

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