# Friedrich Haag

> German crystallographer (1856–1941)

**Wikidata**: [Q121119](https://www.wikidata.org/wiki/Q121119)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Friedrich_Haag_(crystallographer))  
**Source**: https://4ort.xyz/entity/friedrich-haag


## References

1. Integrated Authority File
2. Virtual International Authority File