This I extracted from a unmined location not far from where I live,central pa,this comes from a contact zone of a red shale, sandstone, and both of those are overlayed by this extremely hard quartzite, the contact is so vivid of color contrasts that your eyes are immediately drawn to it if scanning at a glance, so had get up close and personal with it,so I start to take my hammer and start to dig a (trough) between the shale and sandstone, once I had bedrock cleared of topsoil I began tapping on the rock on both sides (listening for viods) and was rewarded when on the one side it sounded good, and got better going higher, (very steep terain) so when this got to sounding like I was knocking on a door, I had to start splitting and busting rock, well it's a very rich vien deposit, only its worthless, galena and micromounts, sphalerite,beautiful red,but so small you need a magnifying glass to see, but all in all, did locate another deposit, but no real good goodies lol
