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..