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Chaung-gyi, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmari
Regional Level Types
Chaung-gyi- not defined -
Mogok TownshipTownship
Pyin-Oo-Lwin DistrictDistrict
Mandalay RegionRegion
MyanmarCountry

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Latitude & Longitude (WGS84):
22° North , 96° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~31km
GRN:
N16E63
KΓΆppen climate type:
Cwa : Monsoon-influenced humid subtropical climate
Mindat Locality ID:
26236
Long-form identifier:
mindat:1:2:26236:6
GUID (UUID V4):
e393747b-1f76-46aa-aa52-595da6521665
Other/historical names associated with this locality:
Burma


The general area of Chaung-gyi (Big Stream) is situated about 7 km from Mogok township and it is only accessible by 4-wheel drive vehicle. The long, narrow Chaung-gyi valley runs from south-west to northeast. The Chaung-gyi-chaung is the main stream and flows south-west to north-east into the lowlands of Momeik.

The area is composed of igneous rocks (leucogranite, syenite), and metamorphic rocks (marble, calc-silicate, gneiss). The calc-silicate rocks are tightly folded and minor drag foldings are observed. The metamorphic rocks are often faulted and intruded by leucogranite and syenite. The Lisu, Shan, Nepali/Gurkha, and Palaung ethnic minorities live in the Chaung-gyi valley in separate villages and work in the numerous MGE-joint venture mines situated nearby. In 1999 there were about 50 legal joint ventures in and around Chaung-gyi, employing more than 1.000 miners working on the valley floor in one daylight shift. Some illicit mining takes place on the adjacent hillsides.

Gem mining is carried out through myaw-dwin, lebin-dwin and open-pit methods. The gems are found in the secondary deposits (mostly alluvium at the valley floor), as well as at the adjacent primary deposits (marbles, skarns and pegmatites). The stream supplies the water required for washing the gems found in the valley. Many gems and minerals including pitchblende, a radioactive mineral, are found at Chaung-gyi. - Ted Themelis (2008) Gems and Mines of Mogok.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

13 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
β“˜ Beryl
Formula: Be3Al2(Si6O18)
β“˜ Beryl var. Aquamarine
Formula: Be3Al2Si6O18
β“˜ Beryl var. Goshenite
Formula: Be3Al2(Si6O18)
β“˜ Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
β“˜ Cordierite var. Iolite
Formula: (Mg,Fe)2Al3(AlSi5O18)
β“˜ Corundum
Formula: Al2O3
Localities: Reported from at least 8 localities in this region.
β“˜ Corundum var. Ruby
Formula: Al2O3
Localities: Reported from at least 6 localities in this region.
β“˜ Corundum var. Sapphire
Formula: Al2O3
Localities: Reported from at least 8 localities in this region.
β“˜ Corundum var. Star Ruby
Formula: Al2O3
β“˜ Corundum var. Star Sapphire
Formula: Al2O3
β“˜ Kornerupine
Formula: Mg3Al6(Si,Al,B)5O21(OH)
β“˜ Kyawthuite (TL)
Formula: Bi3+Sb5+O4
Type Locality:
β“˜ Magnesiotaaffeite-2N’2S
Formula: Mg3Al8BeO16
β“˜ 'Magnesiotaaffeite-2N’2S2'
Formula: Mg3BeAl8O16
β“˜ 'Moonstone'
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ Spinel
Formula: MgAl2O4
Localities: Reported from at least 6 localities in this region.
β“˜ Topaz
Formula: Al2(SiO4)(F,OH)2
β“˜ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
Colour: Dark green
β“˜ Uraninite
Formula: UO2
β“˜ Uraninite var. Pitchblende
Formula: UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Spinel4.BB.05MgAl2O4
β“˜Corundum
var. Ruby		4.CB.05Al2O3
β“˜var. Star Ruby4.CB.05Al2O3
β“˜4.CB.05Al2O3
β“˜var. Star Sapphire4.CB.05Al2O3
β“˜var. Sapphire4.CB.05Al2O3
β“˜Quartz4.DA.05SiO2
β“˜Kyawthuite (TL)4.DE.45Bi3+Sb5+O4
β“˜Uraninite4.DL.05UO2
β“˜var. Pitchblende4.DL.05UO2
β“˜Magnesiotaaffeite-2N’2S4.FC.25Mg3Al8BeO16
Group 9 - Silicates
β“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
β“˜Topaz9.AF.35Al2(SiO4)(F,OH)2
β“˜Kornerupine9.BJ.50Mg3Al6(Si,Al,B)5O21(OH)
β“˜Beryl
var. Aquamarine		9.CJ.05Be3Al2Si6O18
β“˜9.CJ.05Be3Al2(Si6O18)
β“˜var. Goshenite9.CJ.05Be3Al2(Si6O18)
β“˜Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
β“˜var. Iolite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
β“˜Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Unclassified
β“˜'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
β“˜'Moonstone'-
β“˜'Magnesiotaaffeite-2N’2S2'-Mg3BeAl8O16

List of minerals for each chemical element

HHydrogen
Hβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Hβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ TopazAl2(SiO4)(F,OH)2
BeBeryllium
Beβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Beβ“˜ BerylBe3Al2(Si6O18)
Beβ“˜ Magnesiotaaffeite-2N’2SMg3Al8BeO16
Beβ“˜ Beryl var. GosheniteBe3Al2(Si6O18)
Beβ“˜ Magnesiotaaffeite-2N’2S2Mg3BeAl8O16
BBoron
Bβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Bβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
Oβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Oβ“˜ AlmandineFe32+Al2(SiO4)3
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Oβ“˜ CorundumAl2O3
Oβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Oβ“˜ Uraninite var. PitchblendeUO2
Oβ“˜ QuartzSiO2
Oβ“˜ Corundum var. RubyAl2O3
Oβ“˜ Corundum var. SapphireAl2O3
Oβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ SpinelMgAl2O4
Oβ“˜ Magnesiotaaffeite-2N’2SMg3Al8BeO16
Oβ“˜ TopazAl2(SiO4)(F,OH)2
Oβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oβ“˜ UraniniteUO2
Oβ“˜ Cordierite var. Iolite(Mg,Fe)2Al3(AlSi5O18)
Oβ“˜ Beryl var. GosheniteBe3Al2(Si6O18)
Oβ“˜ Corundum var. Star SapphireAl2O3
Oβ“˜ Corundum var. Star RubyAl2O3
Oβ“˜ KyawthuiteBi3+Sb5+O4
Oβ“˜ Magnesiotaaffeite-2N’2S2Mg3BeAl8O16
FFluorine
Fβ“˜ TopazAl2(SiO4)(F,OH)2
NaSodium
Naβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mgβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Mgβ“˜ SpinelMgAl2O4
Mgβ“˜ Magnesiotaaffeite-2N’2SMg3Al8BeO16
Mgβ“˜ Cordierite var. Iolite(Mg,Fe)2Al3(AlSi5O18)
Mgβ“˜ Magnesiotaaffeite-2N’2S2Mg3BeAl8O16
AlAluminium
Alβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Alβ“˜ AlmandineFe32+Al2(SiO4)3
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Alβ“˜ CorundumAl2O3
Alβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Alβ“˜ Corundum var. RubyAl2O3
Alβ“˜ Corundum var. SapphireAl2O3
Alβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ SpinelMgAl2O4
Alβ“˜ Magnesiotaaffeite-2N’2SMg3Al8BeO16
Alβ“˜ TopazAl2(SiO4)(F,OH)2
Alβ“˜ Cordierite var. Iolite(Mg,Fe)2Al3(AlSi5O18)
Alβ“˜ Beryl var. GosheniteBe3Al2(Si6O18)
Alβ“˜ Corundum var. Star SapphireAl2O3
Alβ“˜ Corundum var. Star RubyAl2O3
Alβ“˜ Magnesiotaaffeite-2N’2S2Mg3BeAl8O16
SiSilicon
Siβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Siβ“˜ AlmandineFe32+Al2(SiO4)3
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Siβ“˜ KornerupineMg3Al6(Si,Al,B)5O21(OH)
Siβ“˜ QuartzSiO2
Siβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ TopazAl2(SiO4)(F,OH)2
Siβ“˜ Cordierite var. Iolite(Mg,Fe)2Al3(AlSi5O18)
Siβ“˜ Beryl var. GosheniteBe3Al2(Si6O18)
SSulfur
Sβ“˜ PyriteFeS2
FeIron
Feβ“˜ AlmandineFe32+Al2(SiO4)3
Feβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Feβ“˜ PyriteFeS2
Feβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feβ“˜ Cordierite var. Iolite(Mg,Fe)2Al3(AlSi5O18)
SbAntimony
Sbβ“˜ KyawthuiteBi3+Sb5+O4
BiBismuth
Biβ“˜ KyawthuiteBi3+Sb5+O4
UUranium
Uβ“˜ Uraninite var. PitchblendeUO2
Uβ“˜ UraniniteUO2

Localities in this Region

Myanmar

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Themelis, Ted (2008) Gems & Mines of Mogok (2nd ed.) A&T Publishing, Los Angeles, CA.
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