The mining area has been known for a long time. The principle rocks are apatite-phlogopite-diopside marble, graphite-phlogopite marble and others. Rubies
are found in different types of marble using typical gwè-dwin
s and small tunnels. The ruby-bearing marble bands are greenish-bluish, bluish and brownish, with coarse grained texture and oriented at ~175° direction. Associated minerals include sphene
. Spinels are found in the spinel-bearing marbles.
Ref: Ted Themelis (2008) Gems and Mines of Mogok, p. 229
Gem list contains entries from all listed localities in region.
Localities in this Region
- Mandalay Region
- Pyin-Oo-Lwin District
- Mogok Township
- Marble Ark
- Kyauk-poke (Rotten Stone)