Htan-yan-sho, Pein-Pyit (Painpyit; Pyan Pyit), Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Burma (Myanmar)This page is currently not sponsored. Click here to sponsor this page.
In 2001 these mines produced mostly spinels (60%), near-colorless, greenish-blue, purple and other colored sapphires (10%), rubies (5%), other gemstones (25%). In 2004, most gems mined were blue or blue/green sapphires, fewer of fine quality; also some rubies. Other gems found iclude quartz, tourmaline, moonstone, near-colorless to yellowish and greenish chrysoberyl, danburite, topaz, zircon, diopside, fibrolite, amblygonite/montebrasite and andalusite. Vivid green grossular suitable for cutting brilliant gems below 2 carats were also recovered.
Most of the gems are found in sandy byôn using open-pit mining methods. Blue and blue-green sapphires, some milky-silky are also found in the alluvium and they are similar to those found at Pyant-gyi. Some of these sapphires are suitable for heat-treatment to enchance their color and increase their transparency. Rubies and spinels are found in the adjacent primary marble deposits. - Ted Themelis (2008) Gems and Mines of Mogok
15 entries listed. 10 valid minerals.
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Ted Themelis (2008) Gems and Mines of Mogok
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Locality Updated: Bikita pegmatite, Bikita Area, Masvingo, ZimbabweFrom Chester S. Lemanski, Jr., 2nd Sep 2014 16:49:30