Is there anyone with suggestions. I guess this is Alum and not broken glass. But it is such an unhealthy looking concoction of what appears to be no more than waste material. It is dirty and rather evil looking and has over the years penetrated slightly into the bolt motion cavity.

My initial thought was to scrap it, but I did save it all.

So should it go back, if so I will ensure it cannot leave that compartment as it has done before. Or perhaps rock-wool and sieve the crystals out and incorporate them in that.

I am very open to ideas. But of course the chances of anyone in this modern world wanting to cut this open with oxy-acetylene is about nil I would have thought.

Any comments gratefully received, Steve.