This is an example of how SHDR can bring out the beauty, underground, as well as provide a learning and teaching tool for geologists.
This pattern had just been revealed and, shortly after the photo was taken,
further mining removed it.
These were exceedingly difficult lighting conditions, yet notice the shadow detail in the cutting head, the four distinct colours in the wall layering and the gleam of the moisture on the face surface.
(You may need to use the scroll bars to see the entire photo.)