Sometimes I wish I'd been a geologist. It would have been fun. Rather dusty and hard on the hands, but fun.
My mind is full of "what ifs" about these rocks from the moon that scientists (geologists?) say came from Earth originally. Well, maybe. They know more than I do. But .......
The moon and Earth were closer together at the time an asteroid blasted them both with flotsam and jetsam. Isn't it possible that both were blasted with the same materials that formed into the same type rock?
Scientists seem to show that all evidence points to an earth-origin. The big argument is our water-rich environment. I ask: The moon has some water now. Did it once have more water? Do they know?
Or should I take my ideas back to a story we were told eons ago? The story - which seems to have died a-borning - was that the moon was blasted from where the Pacific Ocean now is in some planetary collision. Thus, all the same materials on both bodies.
Where is a good geologist when I need him/her?