This says something about life on Islay to me – technology and nature. (I didn’t take the stones from the beach here, they were in the back of the garage in Sheffield that we cleared in January and they managed to travel here in the car! Don’t know where they were from originally?)
Greene Island 
The stones look like part of the pile, I saw next to the airlock at the Mars Bar last summer (Martian Summer) https://www.facebook.com/themarsbaronmars/ 🙂
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Ah, Martian rocks – that explains why they glow in the dark! :0)
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