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Kadoke-tat (Kadote-dat), Marble Ark, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmari
Regional Level Types
Kadoke-tat (Kadote-dat)- not defined -
Marble ArkMining Area
Mogok TownshipTownship
Pyin-Oo-Lwin DistrictDistrict
Mandalay RegionRegion
MyanmarCountry

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Key
Latitude & Longitude (WGS84):
22° 56' 2'' North , 96° 28' 1'' East
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Mogok90,843 (2016)4.7km
Other/historical names associated with this locality:
Burma


The gem deposit of Kadoke-tat (Army Fortress) is located in a deep elongated natural marble fissure, long known for its dangerous loos (twisted holes) and caves. This natural fissure is more than 800 meters long and varies in width from ~60 to 100 meters. The fissure runs approximately in a N-NW direction, and is situated at the bottom of the mountain ridge along the Bawpadan road.
By April 1999 the number of mines had fallen considerably, mining became unprofitable. In November 1999 there were only 11 plots in the main fissure, other plots in the adjacent area continued gem mining and by 2002 there were still in operation. In the following years gem mining became more difficult.
A combination of gwè-dwin, lebin and tunelling methods are used to reach the gem-bearing marble bands lying at the bottom of the crevice. The marbles are light green, light blue and yellowish white, lenticular-shaped and usually associated with sphene, scapolite, diopside and pyrite. Ruby, star ruby, diopside and scapolite are found in the loos (twisted holes - loo-dwin) mixed with gravel and soil. - Ted Themelis (2008) Gems and Mines of Mogok

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

Corundum
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Corundum var: Ruby
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok; Yui, T.-F., Khin Zaw, Wu, C.-M. (2008): A preliminary stable isotope study on Mogok Ruby, Myanmar. Ore Geol. Rev. 34, 192-199.
Corundum var: Star Ruby
Formula: Al2O3
Reference: Ted Themelis (2008) Gems & mines of Mogok
Diopside
Formula: CaMgSi2O6
Reference: Ted Themelis (2008) Gems & mines of Mogok
'Scapolite'
Reference: Ted Themelis (2008) Gems & mines of Mogok

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
var: Star Ruby4.CB.05Al2O3
Group 9 - Silicates
Diopside9.DA.15CaMgSi2O6
Unclassified Minerals, Rocks, etc.
'Scapolite'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Unclassified Minerals, Mixtures, etc.
Corundum
var: Ruby
-Al2O3
var: Star Ruby-Al2O3
'Scapolite'-

List of minerals for each chemical element

OOxygen
O Corundum (var: Ruby)Al2O3
O Corundum (var: Star Ruby)Al2O3
O DiopsideCaMgSi2O6
O CorundumAl2O3
MgMagnesium
Mg DiopsideCaMgSi2O6
AlAluminium
Al Corundum (var: Ruby)Al2O3
Al Corundum (var: Star Ruby)Al2O3
Al CorundumAl2O3
SiSilicon
Si DiopsideCaMgSi2O6
CaCalcium
Ca DiopsideCaMgSi2O6

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Yui, T.-F., Khin Zaw, Wu, C.-M. (2008): A preliminary stable isotope study on Mogok Ruby, Myanmar. Ore Geol. Rev. 34, 192-199.
Ted Themelis (2008) Gems and Mines of Mogok

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate
Myanmar
  • Mandalay Region
    • Pyin-Oo-Lwin District

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