These would clearly be cores from blade-knapping if they were flint or obsidian (or even quartz in Ireland or chert in Scotland). Worth handing to a lithics person. Any early prehistoric strata in the ditch-sides?

Greg Campbell

The Naive Chemist

On Monday, 11 January 2016, 10:33, Rachael Stamper <[log in to unmask]> wrote:

Good morning everyone,

I hope this is OK to post. A colleague sent me these photos of pieces of amethyst that were found in Cole Green ha-ha, which is part of the Panshanger Estate, Hertingfordbury, Herts. The ha-ha had the brick facing removed in c1801 when the house was demolished and the family moved across the valley. There is still a ditch where the ha-ha was and these pieces were found stuck in the sides. She is hoping to identify what/where they came from… garden building or rubbish dump? If anyone can shed some light, please let me know.

Kind regards,
Rachael

Rachael Stamper

Project Manager

Parks & Gardens UK