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Oh no. I probably took that last picture too close and misled you. They are olives! Big ones, we have a couple of trees of that variety to make them edible, not for olive oil but not so big as you thought :)

😆 Wow! They look huge and purple in color, I don't know if I've ever seen this variety of olives.

They are called Kalamon (ελιές Καλαμών) and they are huge indeed :)