For Härtling there are 16 on Yasni with different names.
Among the most common last names on Yasni Härtling is on position 4511.
A "Härtling" is such a very hard sandstone, which in contrast to its surroundings resists weathering more. An example of the devil is in the wall at Weddersleben resin. So seems the Härtling s to have been particularly robust!
(Sent from Yasni user)