# nodule

> knot, mass, or lump of a mineral or mineral aggregate with a contrasting composition

**Wikidata**: [Q2916245](https://www.wikidata.org/wiki/Q2916245)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Nodule_(geology))  
**Source**: https://4ort.xyz/entity/nodule-q2916245


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)