That’s how I have always known it.
stone
stane in British English (steɪn ) noun. a Scot word for stone.
The UK & Ireland are FAMOUS for their Dry Stane Walls.
Even I know how to build one. It’s just a very heavy VERTICAL jigsaw puzzle.
Nothing whatsoever to do with melted buildings/melted mortar.
Have y’all ever seen a BROCH?
Dry Stane Walling at it’s best.

How about a CAIRN?

Fast Forward to Modern Day Dry Stane Walling via Ireland.
IT IS NOT DIFFICULT…ffs!