# Alan J. Criddle

> English mineralogist (1944-2002)

**Wikidata**: [Q17333735](https://www.wikidata.org/wiki/Q17333735)  
**Source**: https://4ort.xyz/entity/alan-j-criddle


## References

1. Mindat.org
2. Calvertite, Cu5Ge0.5S4, a new mineral species from Tsumeb, Namibia
3. Virtual International Authority File