The UFO gangues were found in an abandoned heap of gangues. There are several coal mines around the heap. Gangues are the abandoned materials left after the coal has been extracted from the rock. Among these UFO gangues, several of them have diameters over 4.9 feet and thicknesses between 7.9 inches and 23.6 inches. They weighed between 1764 pounds and 1 ton.
On May 27, 2007, several dozen "UFO" shaped gangues were found in Shangrao County, Jiangxi Province. Experts indicate that the UFO gangues were formed about 300 million years ago.
An engineer from the Shangrao Coal Bureau suggested that the ages of the UFO gangues are between the Paleozoic Late Carboniferous and Early Permian, so they're about 300 million years ago.
The UFO stones appear not only in Jiangxi, but they were also found near the Shuibuya Dam Project of the Sichuan Three Gorges Reservoir. The UFO stones there weigh about 44 pounds each.
Local villagers who were building the inter-village highway there found these UFO stones. The stones were located near Big Cave Bay in Shanlicheng Village of Badong Shuibuya. Big Cave Bay is a natural cavern. There's a clear stream flowing outside of the cavern. Xiang Zhiyu, a Qizu Village resident who worked on a section of the inter-village highway, found these strange stones when he was blasting the rocks near the Big Cave Bay area.
The UFO stones were lined up horizontally about 1.6 feet apart and are evenly distributed. It was reported that UFO stones have an especially hard texture. They are obviously different from the stones from the mountains in this area.