Green and Clear Stein's Pillar Thunderegg
Another stone that demonstrates the variability of this location. This is such a different specimen that it hardly looks as though it is from the same area, save perhaps when you look at the matrix!
Countries:
USA - Canada - Alaska - Mexico - Argentina - Peru - France - Germany - UK - Poland - Greece - Turkey - Romania - Bulgaria - Slovakia - Kazakhstan - Uzbekistan - Russia - Japan - Ethiopia - Iran - Australia - Unknown