The principle rocks are: granite pegmatite, leucogranite, spinel-clinohumite-phlogopite marble, chondrodite-phlogopite-graphite marble and spinel-bearing & forsterite marble, apatite-phlogopite-diopside marble and gneiss. In this area skarns, contact zones, sinkholes and basins are found. Most of the gems found in the Pein-Pyit general area are spinels
, and most of them mined from the alluvium using open-pit, lebin
and other mining methods.
Ref: Ted Themelis (2008) Gems and Mines of Mogok, p. 187
Gem list contains entries from all listed localities in region.
Localities in this Region