# Soen Ing Oen

> professor of petrology, Mineralogy and Ore Geology, University of Amsterdam and the Free University

**Wikidata**: [Q29011369](https://www.wikidata.org/wiki/Q29011369)  
**Source**: https://4ort.xyz/entity/soen-ing-oen


## References

1. Mindat.org
2. Album Academicum
3. Czech National Authority Database
4. Virtual International Authority File