This is a very rare thunderegg specimen from Northern Black Sea Coast of Turkey.lt has various geological formations on both halves like as agate layers, geodes & botryoidal chalcedony inside the geodes. Both halves have great transparent 3D surfaces which you can clearly see & examine the halves in depth. This is a naturally waterwashed Black Sea thundereg so the outer rhyolite cover was roughly tumbled in the water for long. Both halves have great light tricks depending on the light sources.l took the photos both inside & outside on a sunny day & some also a few photos inside with indoors lights. This pair was mirror polished so perfectly that it is really difficult to take great photos since the both halves are almosy like mirrors. Dimensions for the halves Half 1 : 10.5 x 7.5 cms ( 4.1 " x 2.9") Half 2: 10 x 7.5 cms ( 4" x 2.9") Total weight : 717 grams / 25.4 oz. Ultra Rare, Black Sea Thunderegg, Mirror Polished, Turkish Thunder Egg, Geode, Botryoidal, Chalcedony, Agate
