Thank you for the prize, @snowyknight. Much appreciated.

I'm not an expert when it comes of rocks (only Black Sabbath or The Who 🙂) so I cannot say too much about your photos. Except, great finding! And Ibtend to agree with @deerjay.
I'm looking forward to plants and bugs mysteries. I might have one which gives me trouble in identifying. One more shot and if no success, I'll post it here.

Thank you again for this awesome challenge. 🤟