Pitchstone
Pitchstone is a dark coloured, glassy
The pitchstone ridge of An Sgùrr on the Isle of Eigg, Scotland, was possibly formed as a lava flow in a valley.[2]
Pitchstone from the
Early Bronze Age.[3] Mesolithic use appears to have been limited to the Isle of Arran itself, while in later periods the material or items made from it were transported around Britain.[3]
References
- PMID 30679443.
- ISBN 0118845179.
- ^ hdl:10454/9048.
 | This volcanology article is a stub. You can help Wikipedia by expanding it. |