How come you won't accept that it probably WASN'T electricity? Couldn't there be another possibility? Why do you care so much about these formations anyway? Could you not accept just remaining in the dark? Why didn't you Google it when you wondered about the answer? Did someone you trusted tell you about the electricity and you just blindly believed everything they said? Is this person in a field that studies geologic formations? Are the credited or published? Assuming that you are correct, what can someone do to study this electrical phenomenon? Seeing is believing right?