Mine No. 666, Ohngaing (Ohn Gaing; Ohn Kai), Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

The mine is located at the bottom of the hill adjacent to the Shan village of Ohn-gaing. Rubies and other gems are mined from the alluvium in an open-pit scheme and at the nearby primary deposit. A mining scheme started in December 1997 was terminated in 2000, owing to depletion of the mine.

Ref: Ted Themelis (2008) Gems & mines of Mogok, p. 214

Gemstone List

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