Good day fellow TH. I just want to ask if you encounter a soil like this in your diggings before? It is a smooth and shiny surface of the soil which we thought that its a stroke from the shovel or pick that we used but as we are trying to observe, it is actually not. Any ideas or opinion with this kind of soil? It can be found underneath the layers as we use a pick in the upper portion of the soil, this soil then appeared.
