The mine concessions at Thit-seint-kone (Oil-producing Nut Tree) are located at the bottom of the ridge near the village of Thit-seint-kone. The mines are using
myaw-dwin methods to recover blue
sapphire,
ruby,
aquamarine,
goshenite,
spinel,
quartz,
topaz,
tourmaline and other gems from a small pegmatite dyke, as well as from the alluvium. At the nearby skarn
topaz,
quartz and other gems are found.
Ref: Ted Themelis (2008) Gems and Mines of Mogok, p. 265
Gemstone List