On-dan, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmari
| Regional Level Types | |
|---|---|
| On-dan | - not defined - |
| Mogok Township | Township |
| Pyin-Oo-Lwin District | District |
| Mandalay Region | Region |
| Myanmar | Country |
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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
Köppen climate type:
Other/historical names associated with this locality:
Burma
The general area is located 58 km NW of Mogok township, encompassing an area of ~36 square kilometers, bordering from 96°12'30"E. to 96°15'45"E. and from 22°55'00"N. to 23°00'00"E. and elevation ranging from 930 to 1,460 m ASL.
The occurrence of the sapphires has been known since the 1940s. The principal rocks are leucogranite, biotite microgranite, augite granite, diorite, syenite, ruby-bearing marble, pure marble, diopside marble, calc-silicate rocks, and gneiss.
Most of the blue sapphires are large in size, but low in quality and appear more "drier" than those sapphires found at Yadanar-kaday-kadar, Kyauk-Pyat-That and elsewhere on Mogok. The best sapphires from On-dan (with few exceptions) can be marketed as commercial-grade cabochons of low value. Very few sapphires are of good faceting grade. Spinel, almandine, garnet, schorl, and quartz are found in the general area.
- Ted Themelis (2008) Gems and Mines of Mogok.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities8 valid minerals.
Detailed Mineral List:
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 |
| ⓘ Chondrodite Formula: Mg5(SiO4)2F2 |
| ⓘ Corundum Formula: Al2O3 Localities: Colour: Blue |
| ⓘ Corundum var. Sapphire Formula: Al2O3 Localities: Colour: Blue |
| ⓘ Elbaite Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) References: |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Spinel Formula: MgAl2O4 |
| ⓘ Thorite Formula: Th(SiO4) |
| ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z References: |
| ⓘ 'Tourmaline var. Rubellite' Formula: A(D3)G6(T6O18)(BO3)3X3Z References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Corundum | 4.CB.05 | Al2O3 |
| ⓘ | var. Sapphire | 4.CB.05 | Al2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Chondrodite | 9.AF.45 | Mg5(SiO4)2F2 |
| ⓘ | Elbaite | 9.CK.05 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Unclassified | |||
| ⓘ | 'Tourmaline var. Rubellite' | - | A(D3)G6(T6O18)(BO3)3X3Z |
| ⓘ | '' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | Lithium | |
| Li | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | Boron | |
| B | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline var. Rubellite | A(D3)G6(T6O18)(BO3)3X3Z |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| O | ⓘ Corundum | Al2O3 |
| O | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Tourmaline var. Rubellite | A(D3)G6(T6O18)(BO3)3X3Z |
| O | ⓘ Corundum var. Sapphire | Al2O3 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| F | Fluorine | |
| F | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Na | Sodium | |
| Na | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Corundum | Al2O3 |
| Al | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Corundum var. Sapphire | Al2O3 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Spinel | MgAl2O4 |
| Si | Silicon | |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Si | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Thorite | Th(SiO4) |
| Fe | Iron | |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Th | Thorium | |
| Th | ⓘ Thorite | Th(SiO4) |
Localities in this Region
- Mandalay Region
- Pyin-Oo-Lwin District
- Mogok Township
- Pyin-Oo-Lwin District
Other Regions, Features and Areas containing this locality
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References
On-dan, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar