Found these whilst walking around Warwickshire please could you help.thanks
put on hold as off-topic by Universal_learner, Fred, trond hansen, arkaia, Spencer Jul 11 at 21:30
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – Universal_learner, Fred, trond hansen, arkaia, Spencer
Warwickshire is well known for flint. The conchoidal fractures and the glassy appearance support this.
See here for further detail: