# Martian spherules

> abundant spherical hematite inclusion, found in situ embedded in a sulfate salt evaporitic matrix or also loose on the surface, discovered by Opportunity at Meridiani Planum on Mars

**Wikidata**: [Q3310161](https://www.wikidata.org/wiki/Q3310161)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Martian_spherules)  
**Source**: https://4ort.xyz/entity/martian-spherules


## References

1. Freebase Data Dumps. 2013