Actually, I'll have to disagree.. on the Smokey Quartz aspect.. Appears to be a very dark Chalcedony I think it's technicality known as a dark grey chalcedony.. The one image where you're shining the light through it.. has a "chalkiness" appearance which is caused by the host Limestone and the Chalcedony or Thunder Egg's from Tennessee can be very dark gray, white, or cream colored..
Interesting. It definitely has a chalkiness to it. I was told by an "expert" it was Smoky Quartz, but the small pieces of Smoky I've found around here have a lot more clarity.
Well I'm not expert.. thou I have had my share of failures.. one thing I can claim is the fields of Tennessee are full of Chalcedony.. and we go there ever chance we can seeing how my wife's aunt and uncle live there.
This isn't rocket science.. but it is hard to pin point what something is just from an image.. if your "expert" told you it was a smokey.. by all means.. listen to him/her.. I'm just offering my view point here.
Wasn't found.. was given as payment for helping others identify their crystals and stones.. This is how I get some of those better gems within my collection..