# Pseudotachylite

> glassy, or very fine-grained, rock type

**Wikidata**: [Q1541604](https://www.wikidata.org/wiki/Q1541604)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pseudotachylyte)  
**Source**: https://4ort.xyz/entity/pseudotachylite


## References

1. Freebase Data Dumps. 2013