Mountain lays eggs!!

In Guizhou province of china, a mountain cliff has been laying eggs once in 30 years.
The mountain is called Chan Dan Ya meaning Egg Producing Hill. It is densely covered with trees and weeds; surface is extremely uneven and very steep.

A number of egg shaped stones appear on the bluff of the mountain, once every 30 years. These eggs are approximately 30 centimeters in diameter, oval in shape and light yellow in colour. There are 68 such eggs preserved by the local people around, who feel these stones are good omens and will protect them.

Analysis of the stone eggs, reveal that the rocks date back to the Cambrian age, this was prior to the Triassic and Jurassic age!!! Oddly enough, the Chan Dan Ya is made up of calcareous (composed of calcium carbonate or chalk) rocks. It is indeed intriguing that Cambrian period rocks are coming out of a calcareous mountain.

Links
http://www.theepochtimes.com/news/6-3-8/39075.html
http://perdurabo10.tripod.com/id1852.html