Aubergine smooth, NF

Red coal, NF

Nordkap smooth, NF

Naturbrand smooth, NF

Malta smooth, NF

Juist smooth, NF

Borkum waterstruck, NF

Borkum smooth, NF

Grunewald slate-structure, DF

Blankenese waterstruck, NF

Bernau waterstruck, NF

Zehlendorf waterstruck, NF