Quartz on graves

close
more_vert
Martin M
Martin Aug 23, 2006 12:07:13
Replying to Mr Hamhead

Nah, you're not going mad ;)
It's all to do with piezoelectricity;
http://en.wikipedia.org/wiki/Piezoelectric

Cheers,
Martin

M Mr Hamhead
Mr Hamhead Aug 23, 2006 15:46:23
Replying to Martin

I had a feeling it was!

Mr H