Precious stones on the himalayas of Nepal.

Until 1940s Nepal had huge treasures of gold, gems, ruby, diamonds and pearls in the remoteness of Himalayas. Before then Nepal was not open to visit for foreigners. 

It is believed that the bottom of ocean erected to form the himalayas of Nepal after collision of Indian tectonic plate with Chinese plate. This brought up many precious stones on the surface of Himalayas. 

Traces of these precious stones can be still found on the trekking trails of Nepal.