I am off work at the moment and have been in the back yard, taking advantage of global warming, and knapping almost every day.

This was a lumpy flake of glass slag. It was either gifted by the Salford Unit before they closed, or from the disused railway line behind the playing fields at Dorstone. I can’t remember, which is a shame. I also forgot to take a ‘before’ photo. I was caught up in knapping rather than thinking of a blog post.

Anyway, in spite of the flakes very uneven thickness it knapped brilliantly. The colour is amazing and I like the bubbles. It has produced a very descent Neolithic leaf shaped arrowhead, although made from industrial glass slag using an iron nail pressure flaker.

As you can see, our windowsill is morphing into a knapping museum of sorts, an exploration of materials, methods and obsessive behaviour!