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Ongon Khairkhan, Büren District, Töv Province, Mongoliai
Regional Level Types
Ongon KhairkhanIntrusion
Büren DistrictDistrict
Töv ProvinceProvince
MongoliaCountry

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Latitude & Longitude (WGS84):
47° 4' North , 105° 10' East
Latitude & Longitude (decimal):
47.06667,105.16667
GRN:
N32E52
Type:
Intrusion
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
426430
Long-form identifier:
mindat:1:2:426430:2
GUID (UUID V4):
0



Ongonites were discovered and defined in the Ongon Khairkhan Mountains, Central Mongolia, as topaz-bearing albite–quartz keratophyres, containing phenocrysts of albite, K–feldspar, quartz, mica and topaz hosted in a groundmass composed of the same minerals. It was named after the Ongon Khairhan pluton and associated tungsten deposit. The ongonites form a dike swarm about 2 km long with the thickness of individual dikes ranging from several cm to about 5 m. The dikes have chilled margins. The content of Li2O is variable, ranging typically from about 0.1 wt % in porphyritic ongonites to 0.56 wt.% in aphyric types.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


6 valid minerals.

Rock Types Recorded


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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ 'K Feldspar'
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2
ⓘ 'Wolframite Group'
ⓘ 'Zinnwaldite'
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘ'Wolframite Group'4.DB.30 va
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Zinnwaldite'-
ⓘ'K Feldspar'-
ⓘ'Apatite'-Ca5(PO4)3A

List of minerals for each chemical element

HHydrogen
Hⓘ TopazAl2(SiO4)(F,OH)2
Hⓘ Zinnwaldite
LiLithium
Liⓘ Zinnwaldite
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Monazite GroupREE(PO4)
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ Zinnwaldite
Oⓘ ZirconZr(SiO4)
Oⓘ ApatiteCa5(PO4)3A
FFluorine
Fⓘ TopazAl2(SiO4)(F,OH)2
Fⓘ Zinnwaldite
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ TopazAl2(SiO4)(F,OH)2
Alⓘ Zinnwaldite
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ Zinnwaldite
Siⓘ ZirconZr(SiO4)
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ Zinnwaldite
CaCalcium
Caⓘ ApatiteCa5(PO4)3A
FeIron
Feⓘ PyriteFeS2
Feⓘ Zinnwaldite
ZrZirconium
Zrⓘ ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate

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References

Dostal, Jaroslav; Gerel, Ochir (2022) Occurrences of Niobium and Tantalum Mineralization in Mongolia. Minerals, 12 (12). 1529 doi:10.3390/min12121529
[1]Dostal, Jaroslav; Gerel, Ochir (2024) Characteristics of Lithium Deposits in Mongolia. Minerals, 14 (10). 960 doi:10.3390/min14100960
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