Hugo van Schrojenstein LantmanI've been having some fun scanning full sections with polarizing sheets. The cross-polarized light scan of this folded serpentinite really brings out the gorgeous structures.
Gavin Foster@HugoLantman nice images - but what is a polarising sheet?
@TheFosterLab A polarizer like you have for cameras, but then really just a sheet. Here we have one on either side of the sample, at 90° with respect to each other so that no light will normally pass through - unless the sample changes the polarization of the light.