My advice is to disregard the Prometheus provings.
I took part in a "meditative proving" and got a direct image of the substance that was under proving which seemed rather exciting given that it was a blind trial. However, the "proving" group found no useful or definite information as to the clinical usefulness of that substance. It was vague and speculative, quite unlike a traditional proving.
I have looked at an issue of Prometheus and found the information to be without practical application - a New Age satire on the science of homoeopathy.
As for the tigers eye, I think it is a gemstone.