Search the Community

I decided to get out for what might have been the last warm day in the 70's (Farenheit) for a walkabout to explore high country access and exit points for some long climbs I would like to do this winter. For this trip I rucked primarily in the lower Pennsylvanian formations looking specifically for a new occurrence of mineral rich shale formations similar to one I had found last year that yielded plant fossils. I did manage to find a small but new-to-me location that was very geologically complex having anomalies in the midst of the shale/sandstone formations. First this Cordaite about 5" tall (12.5 mm) Quite near were numerous Liesegang specimens. This one about 2" x 2" (5mm x 5mm) There seemed to be at least two small areas where hot gasses may have vented through the field leaving small seams of quartz-like material. In one location samples present as Bornite. The largest piece below is 3" x 6" (7.5mm x 15.5mm) The other area was just at the contact zone between the shale having plant fossils and sandstone having plant fossils. This specimen seems to have mostly converted the sandstone and permineralized material into quartz. There is a small specimen of permineralized material left in the lower right corner. Also, there is some mineralization which I believe is mostly iron. As this new location is about 4.5 miles from where I parked my vehicle I did not collect many specimens (small pack) but plan to go back and spend more time searching.

Hello! Good morning to all of my favorite Forum! I am seeing thousands of tons of this wonderful rock for sale in many countries. Some sellers label Natural Peacock ore, other sellers call it Natural Bornite of Mexico ... And by all indications, all the specimens I meet are from Mexico... Some people, mainly sellers say that it is all natural in gross form, other friends of mine say that everything is a great farce, for nothing is more than just chalcopyrite that has received an acid bath! So I'm inclined to think that this wanderful rock might not be natural, but unfortunately I'm not sure ... Thanks all the help. Thank you!