The important pegmatite deposit has been known since the British period.
Historically the deposit produced fine and large size minerals, including topaz
(milky, rose pink and 6-rayed star quartz) often of gem quality. Other gems found here include amazonite
, 4-rayed yellowish-brown hessonite
, green, yellow, yellow-orange). Rubies
are also recovered from the alluvium.
In September 2001 there were several joint ventures operating the deposit all year around using myaw-dwin
methods to extract gems and minerals from the soft red soil. In November 2003 gem mining was somewhat reduced.
Ref: Ted Themelis (2008) Gems and Mines of Mogok, p. 266