The southern area of Mana-Lisu is known as Wa-hkan-sho (or Ho-mine-sho). Several mines in this area produce small quantities of
ruby,
sapphire and
spinel. The gems are found in the alluvium using
myaw-dwin and open-pit mining methods. Gem production is minimal.
Ref: Ted Themelis (2008) Gems & mines of Mogok, p. 186
Gemstone List