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Tan Huong, Yên Bình District, Yên Bái Province, Vietnami
Regional Level Types
Tan Huong- not defined -
Yên Bình DistrictDistrict
Yên Bái ProvinceProvince
VietnamCountry

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Latitude & Longitude (WGS84):
21° 49' 46'' North , 104° 52' 50'' East
Latitude & Longitude (decimal):
21.82944,104.88056
GeoHash:
G#: w7fs4tgtw
GRN:
N15E69
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Yên Bái96,540 (2013)12.3km
Thành Phố Tuyên Quang36,430 (2013)34.4km
Mindat Locality ID:
250147
Long-form identifier:
mindat:1:2:250147:8
GUID (UUID V4):
0


Alluvial gemstone mining.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
ⓘ Corundum
Formula: Al2O3
ⓘ Corundum var. Ruby
Formula: Al2O3
ⓘ Corundum var. Sapphire
Formula: Al2O3
Habit: "trapiche"-like
Colour: blue
ⓘ Corundum var. Star Ruby
Formula: Al2O3
Description: The ruby called Star of Vietnam weighing 2.58 kg and another 1.96kg stones were found.
ⓘ Humite
Formula: Mg7(SiO4)3F2
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Spinel
Formula: MgAl2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum4.CB.05Al2O3
ⓘvar. Ruby4.CB.05Al2O3
ⓘvar. Sapphire4.CB.05Al2O3
ⓘvar. Star Ruby4.CB.05Al2O3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘHumite9.AF.50Mg7(SiO4)3F2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ CorundumAl2O3
Oⓘ HumiteMg7(SiO4)3F2
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ Corundum var. RubyAl2O3
Oⓘ Corundum var. SapphireAl2O3
Oⓘ SpinelMgAl2O4
Oⓘ Corundum var. Star RubyAl2O3
FFluorine
Fⓘ HumiteMg7(SiO4)3F2
MgMagnesium
Mgⓘ HumiteMg7(SiO4)3F2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ CorundumAl2O3
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ Corundum var. RubyAl2O3
Alⓘ Corundum var. SapphireAl2O3
Alⓘ SpinelMgAl2O4
Alⓘ Corundum var. Star RubyAl2O3
SiSilicon
Siⓘ HumiteMg7(SiO4)3F2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate
Vietnam

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

Pham Van Long, Gaston Giuliani, Virginie Garnier, Daniel Ohnenstetter (2004) Gemstones in Vietnam. The Australian Gemmologist, 22(4), xx-xx. [http://www.palagems.com/gemstones-in-vietnam/]
Khoi, N.N., Sutthirat, C., Tuan, D.A., Nam, N.V., Thuyet, N.T.M., Nhung N.T. (2011) Ruby and sapphire from the Tan Huong-Truc Lau area, Yen Bai province, northern Vietnam. Gems & Gemology, 47(3), 182–195.
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