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Myasein Taung, Pyaung Gaung, Bernardmyo, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmari
Regional Level Types
Myasein Taung- not defined -
Pyaung Gaung- not defined -
Bernardmyo- not defined -
Mogok TownshipTownship
Pyin-Oo-Lwin DistrictDistrict
Mandalay RegionRegion
MyanmarCountry

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Key
Latitude & Longitude (WGS84):
23° 0' 2'' North , 96° 27' 51'' East
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Mogok90,843 (2016)10.3km
Other/historical names associated with this locality:
Burma


The Pyaung Gaung (Clear Head) mines, located on Myasein Taung (mountain), are famous for producing peridot of all qualities and sizes. At this time, there are two major peridot mines at Pyaung Gaung both operated by the UMEHL, which maintains a full logistics base and mining camp in the area complete with helipad. In November 2001, more than 70 miners were working at the open-pit deposit at mine #1 situated at the base of the Pyaung Gaung hill. Nearly all mining takes place from open pits, where most peridots are found in situ in their parent rocks. A few small tunnels were drilled in the past at several locations, but this way of recovering gems has not been economically viable. Mine #2 is situated northeast of mine #1 and started in 2006 using improved tunnelling methods of mining.
The peridot-bearing rocks are hauled in trucks and transported to a high-security washing-recovery plant. The workers there use four-pound hammers to break the parent rock and retrieve the peridot crystals embedded therein.
The upper-grade peridots found in Pyaung Gaung are considered the finest in the world, not only in color, but also in large size. Production figures on peridots are not available. It appears that the stones are mined in accordance with market conditions and demand.
In the same general area of Pyaung Gaung and Zalat-taung, gem quality star peridot, greenish-brownish, dark green to green, and brownish enstatite, greenish hornblende, and green-blue chrysoprase are also found. These gems are recovered in open-pit and lebin mining schemes from alluvium at the base of Pyaung Gaung and Zalat-taung hills, at the Bernardmyo valley and surrounding areas. - Ted Themelis (2008) Gems & mines of Mogok

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

'Chabazite'
Reference: Harald Schillhammer collection (SXRD-analysed by Uwe Kolitsch); Kolitsch et al., to be published
'Chrysoprase'
Reference: Ted Themelis (2008) Gems & mines of Mogok
Enstatite
Formula: Mg2Si2O6
Reference: Ted Themelis (2008) Gems & mines of Mogok
Forsterite
Formula: Mg2SiO4
Habit: peridots may be formed as individual euhedral to subhedral crystals with pinacoid, prism and pyramid faces, as well as in multiple clusters pointing towards the center of the pocket.
Colour: yellowish green to green
Reference: Kyaw Thu (2007): The Igneous Rocks of the Mogok Stone Tract: Their Distributions, Petrography, Petrochemistry, Sequence, Geochronology and Economic Geology. Ph.D. Dissertation, Department of Geology, University of Yangon, Myanmar. (Reprinted by palaminerals.com) ; Shigley, J. E., Laurs, B. M., Janse, A. J. A., Elen, S., & Dirlam, D. M. (2010). Gem Localities of the 2000s. Gems & Gemology, 46(3).
Forsterite var: Peridot
Formula: Mg2SiO4
Habit: peridots may be formed as individual euhedral to subhedral crystals with pinacoid, prism and pyramid faces, as well as in multiple clusters pointing towards the center of the pocket.
Colour: yellowish green to green
Reference: Kyaw Thu (2007): The Igneous Rocks of the Mogok Stone Tract: Their Distributions, Petrography, Petrochemistry, Sequence, Geochronology and Economic Geology. Ph.D. Dissertation, Department of Geology, University of Yangon, Myanmar. (Reprinted by palaminerals.com) ; Shigley, J. E., Laurs, B. M., Janse, A. J. A., Elen, S., & Dirlam, D. M. (2010). Gem Localities of the 2000s. Gems & Gemology, 46(3).
'Hornblende'
Colour: Greenish
Reference: Ted Themelis (2008) Gems & mines of Mogok
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Harald Schillhammer collection
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: JR Montgomery Collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
Enstatite9.DA.05Mg2Si2O6
Forsterite9.AC.05Mg2SiO4
var: Peridot9.AC.05Mg2SiO4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Chrysoprase'-
'Hornblende'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1Mg2Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
'Chabazite'-
'Chrysoprase'-
Forsterite
var: Peridot
-Mg2SiO4
'Hornblende'-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
OOxygen
O Forsterite (var: Peridot)Mg2SiO4
O ForsteriteMg2SiO4
O EnstatiteMg2Si2O6
O MagnetiteFe2+Fe23+O4
O PhlogopiteKMg3(AlSi3O10)(OH)2
MgMagnesium
Mg Forsterite (var: Peridot)Mg2SiO4
Mg ForsteriteMg2SiO4
Mg EnstatiteMg2Si2O6
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si Forsterite (var: Peridot)Mg2SiO4
Si ForsteriteMg2SiO4
Si EnstatiteMg2Si2O6
Si PhlogopiteKMg3(AlSi3O10)(OH)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
FeIron
Fe MagnetiteFe2+Fe23+O4

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ted Themelis (2008) Gems & mines of Mogok

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate

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