# Pozzolan

> Siliceous volcanic ashes commonly used as supplementary cementitious material

**Wikidata**: [Q694124](https://www.wikidata.org/wiki/Q694124)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pozzolan)  
**Source**: https://4ort.xyz/entity/pozzolan


## References

1. Integrated Authority File
2. IdRef
3. [Nuovo soggettario](http://thes.bncf.firenze.sbn.it/termine.php?id=27002&menuR=2&menuS=2)
4. National Library of Israel
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)