mrs.oroblanco said:Being from Pa, I used to hear about some old silver mines, here and there, and thought they were nothing my hooey.
However, moving forward 30 years or so, we had a friend who was a fireman in New Jersey, but had his home in Pa. He did lots and lots of research on the silver front, and found several old, old maps and newspaper articles from across the state that seems to validate the fact that there was silver and Pa, and not just a little, but some that were actually worked by indians AND white men alike.
It does explain some very old silver jewelry found by the parents of a friend of ours years ago. It was definitely indian-made and consisted of silver and polished stones of different varieties (and was verified by an expert).
In fact, if you go into the Wyoming County courthouse in Tunkhannock, they have a very, very old original map which specifically has not only silver workings, but a few gold areas also.
There has also been industrial diamonds found in Pa - which makes sense, considering the hard coal that abounds there.
B
There is a vast difference in the temperature and pressure needed to make diamonds, vs. that needed for anthracite (hard) coal. Diamonds come from the earth's mantle; about the only similarity between anthracite coal and diamonds is they both are made of carbon. There is no other relation between the presence of coal, formed from buried sediments which are heated and compressed, and diamonds, which reach the surface in kimberlites, which are a type of igneous dike, generally with a mantle source, and usually exposed by erosion.
The markings on maps are most likely just speculative plays. Take for instance the Pequea "Silver" mine, which is near where I live. It has a trace of silver in the lead ore (galena) that is there, but that is not abnormal, as silver is a trace ore in galena a lot of times. The only reason it is referred to as a silver mine is some investors salted it awhile back and tried to sell stock in the operation; took the money and ran. It still is listed as a "Silver" mine, but its really not.