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Chaung-gyi-ah-le-ywa, Chaung-gyi, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

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Latitude & Longitude (WGS84): 22° 57' 51'' North , 96° 30' 32'' East
Latitude & Longitude (decimal): 22.96417,96.50889
GeoHash:G#: whhdsh7xu
Köppen climate type:Cwa : Monsoon-influenced humid subtropical climate
Other/historical names associated with this locality:Burma


The mining area at Chaung-gyi-ah-le-ywa (Middle Village at Chaung-gyi) is adjacent to Chaung-gyi village. The mine produces mostly blue sapphires and spinels. Iolite and lazurite are occasionally found. These gems are recovered from the alluvium using open-pits and myaw-dwin mining methods. The texture and color of the byôn from this mine is different from that of the byôn found elsewhere.
Some blue sapphires are very high-quality of faceting and cabochon grades. Star sapphires, rubies, star rubies, rubies of cabochon grade, and quartz are also found. - Ted Themelis (2008) Gems & mines of Mogok

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


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

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Ted Themelis (2008) Gems & mines of Mogok
Cordierite var: Iolite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum var: Ruby
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum var: Sapphire
Formula: Al2O3
Colour: Blue
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum var: Star Ruby
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum var: Star Sapphire
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Kyawthuite (TL)
Formula: Bi3+Sb5+O4
Reference: Kampf, A.R., Rosman, G.R., Ma, C. (2016): Kyawthuite, Bi3+Sb5+O4, a new gem mineral from Mogok, Burma (Myanmar). Mineralogical Magazine: 81: 477-484
'Lapis lazuli'
Reference: Ted Themelis (2008) Gems & mines of Mogok
Quartz
Formula: SiO2
Reference: Ted Themelis (2008) Gems & mines of Mogok
Spinel
Formula: MgAl2O4
Reference: Ted Themelis (2008) Gems & mines of Mogok

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Corundum'4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
var: Star Ruby4.CB.05Al2O3
var: Star Sapphire4.CB.05Al2O3
Quartz4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Group 9 - Silicates
'Cordierite'9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
var: Iolite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Unclassified Minerals, Rocks, etc.
Kyawthuite (TL)-Bi3+Sb5+O4
Lapis lazuli-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Cordierite
var: Iolite
-(Mg,Fe)2Al3(AlSi5O18)
Corundum
var: Ruby
-Al2O3
var: Sapphire-Al2O3
var: Star Ruby-Al2O3
var: Star Sapphire-Al2O3
Kyawthuite (TL)-Bi3+Sb5+O4
'Lapis lazuli'-

List of minerals for each chemical element

OOxygen
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O CorundumAl2O3
O Cordierite (var: Iolite)(Mg,Fe)2Al3(AlSi5O18)
O KyawthuiteBi3+Sb5+O4
O QuartzSiO2
O Corundum (var: Ruby)Al2O3
O Corundum (var: Sapphire)Al2O3
O SpinelMgAl2O4
O Corundum (var: Star Ruby)Al2O3
O Corundum (var: Star Sapphire)Al2O3
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg Cordierite (var: Iolite)(Mg,Fe)2Al3(AlSi5O18)
Mg SpinelMgAl2O4
AlAluminium
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al CorundumAl2O3
Al Cordierite (var: Iolite)(Mg,Fe)2Al3(AlSi5O18)
Al Corundum (var: Ruby)Al2O3
Al Corundum (var: Sapphire)Al2O3
Al SpinelMgAl2O4
Al Corundum (var: Star Ruby)Al2O3
Al Corundum (var: Star Sapphire)Al2O3
SiSilicon
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Cordierite (var: Iolite)(Mg,Fe)2Al3(AlSi5O18)
Si QuartzSiO2
FeIron
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe Cordierite (var: Iolite)(Mg,Fe)2Al3(AlSi5O18)
SbAntimony
Sb KyawthuiteBi3+Sb5+O4
BiBismuth
Bi KyawthuiteBi3+Sb5+O4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Precambrian
541 - 4000 Ma



ID: 3191083
Precambrian crystalline metamorphic rocks

Age: Precambrian (541 - 4000 Ma)

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ted Themelis (2008) Gems & mines of Mogok
Kampf, A.R., Rosman, G.R., Ma, C. (2016): Kyawthuite, Bi3+Sb5+O4, a new gem mineral from Mogok, Burma (Myanmar). Mineralogical Magazine: 81: 477-484


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