Our trekking tour this weekend was very close to the CZ-DE border between Decin and Petrovice (CZ). When we stopped for a small break I just noticed two boulders of sandstone looking very, very old. We stopped the car and I had a closer look. The stones were very strong weathered revealing also beautiful layers of colored sands.
I used the plastic spoon that I had with me to collect six different samples from a single location without disturbing in any way the original rock (just got the loose sand at the bottom of the rock). The sands have been already dried now and entered my Sand Atlas collection together with the other samples from Sächsische Schweiz described in the post below (in case of samples collected this weekend, the area belongs to the Bohemian Switzerland Mountains).