Onyx is a banded variety of chalcedony with alternating layers of white and black (or another darker) colors. Its coloration is due to trace amounts of manganese and/or iron. Black onyx refers to onyx that is predominantly or entirely black due to relatively higher concentrations of impurities.
1695 was not a year that stood out especially for any historical episode, beyond the eternal war events and the typical birth and obituary anniversaries... unless one was a native of Oasisamerica, in which case one would expect the end of the world to occur. The latter is nothing extraordinary eithe
On February 22, 1939, the mission of the German Archaeological Institute led by the architect Arnold Nöldeke excavating in the Sumerian city of Uruk, in the southeast of present-day Iraq, found a marble sculpture representing the face of a woman. It was found in the area of the city where the te
Study of a 2e cemetery -4e centuries, discovered in the Republic of Tuva, in southern Siberia, reveals the violent behavior of ancient populations of nomadic pastoralists. Skeletons of steppe nomads bearing traces of violence at the Tunnug 1 site in southern Siberia. Decapitated, the skull substi
The story of Laocoön, the Trojan priest who was attacked and killed along with his two sons by giant snakes for trying to unmask the Trojan Horse ruse, is well known in Greek mythology. The tragic story of Laocoon has been related by numerous Greek poets, such as Apollodorus and Quintus of Smyrna. T