Hi Rpage,This is from the bottom of 'sto...

Hi Rpage,
This is from the bottom of 'stone soup' and once we get some information on the soil constituents then we could probably have a reasonable stab at the cause. But it sure does look like a form of static attraction. The sequence at 369 is interesting as the material has only stuck to the scoop funnel while the sides have retained very little. So the material is sticking together and forming a mechanical blockage, rather than adhering to the scoop itself. I believe they use the rasp vibration to assist the sprinkle of material and I wonder if this has caused some compression of material as it funnels out, assisting it to bond together.

Not sure this classifies as wierd.