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Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, Chinai
Regional Level Types
Saxi Scheelite and Emerald MineMine (Active)
Dayakou Hill- not defined -
Mengdong TownshipTownship
Malipo CountyCounty
WenshanPrefecture
YunnanProvince
ChinaCountry

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06631810017272256462759.jpg
Dayakou Mine

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
05116910017272256471772.jpg
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
04835180017271983204620.jpg
Scheelite, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
02993550017271981561548.jpg
Dayakou Mine

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
05116910017272256471772.jpg
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
04835180017271983204620.jpg
Scheelite, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
03918690017271981681052.jpg
Dayakou Mine

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
05116910017272256471772.jpg
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
Latitude & Longitude (WGS84):
22° 55' 41'' North , 104° 41' 48'' East
Latitude & Longitude (decimal):
22.92806,104.69667
GRN:
N16E68
Type:
Mine (Active) - last checked 2020
Köppen climate type:
Cwa : Monsoon-influenced humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Mabai63,569 (2012)26.9km
Thành Phố Hà Giang32,690 (2013)31.6km
Kaihua64,404 (2013)65.2km
Wenshan City450,000 (2018)66.5km
Mindat Locality ID:
131695
Long-form identifier:
mindat:1:2:131695:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Saxi W-Be deposit; "Dayakou emerald mine"; "Dayakou emerald deposit";


Skarn-type tungsten (scheelite) deposit.
Reserves: 0.011 Mt WO3.
Emerald-bearing quartz and pegmatite veins, hosted in Cambrian metamorphic rocks at the eastern contact of the Yanshannian Laojunshan granite. The veins were intruded during the Cretaceous.

NOTE (comment by Hans-Jürgen Haas): According to a geologist at Nanjing University there is no "Dayakou Emerald Mine". The correct name is Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan Prefecture, Yunnan Province. The Saxi Mine is an underground mine, but could also have small old open pits. In his opinion all emeralds are from the Saxi Scheelite and Emerald Mine.
See also the Chinese geological map https://www.mindat.org/photo-1167570.html.

05890990017272256485114.jpg
Dayakou Geo Map


The exposed strata in the W-Be mining district belong to the Paleoproterozoic Mengdong Group, which comprises the Nanyangtian Formation and Saxi Formation. The Saxi Formation, hosting the majority of W-Be mineralization, consists of biotite granulite, two-mica schist, and quartzite, with minor leptynite and plagioclase amphibolite. The ore bodies exhibit stratiform, para-bedded, and vein-type geometries. Stratiform and para-bedded scheelite ores are conformable to bedding within biotite granulite, whereas vein-type mineralization, including feldspar-quartz veins, beryl-quartz veins and tourmaline-quartz veins are parallel to or crosscut the bedding.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


18 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Beryl
Formula: Be3Al2(Si6O18)
References:
Zheng, Y.
Yu, X.
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ Beryl var. Emerald
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chlorite Group'
References:
Zheng, Y.
Yu, X.
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Epidote Group'
Formula: (A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH)
ⓘ 'Feldspar Group'
ⓘ Fluorite
Formula: CaF2
References:
Zheng, Y.
Yu, X.
Groat, L.A.; Giuliani, G.; Marshall, D.D.; Turner, D. (2008) Emerald deposits and occurrences: A review. Ore Geology Reviews, 34 (1-2). 87-112 doi:10.1016/j.oregeorev.2007.09.003
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ 'K Feldspar'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
References:
Zheng, Y.
Yu, X.
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
ⓘ Muscovite var. Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ Oxy-dravite
Formula: Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
ⓘ Oxy-schorl
Formula: Na(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3O
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
References:
Zheng, Y.
Yu, X.
Ottens, B. (2006) Smaragd aus Dayakou. Lapis, 31 (4) 13-20
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ Scheelite
Formula: Ca(WO4)
References:
Zheng, Y.
Yu, X.
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Cuifang Xu, Peihua Shu, and Jianping Wang (2010): Yunnan Geology 29(3), 318-322
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ Titanite
Formula: CaTiO(SiO4)
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
References:
Zheng, Y.
Yu, X.
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Yang, Fucheng; Romer, Rolf L.; Li, Wenchang; Jiang, Xiaojun; Kroner, Uwe; Deng, Mingguo (2026) Former long-lived passive margins – Cradles for major Sn, W, and Au provinces. Ore Geology Reviews, 193. p.107316. doi:10.1016/j.oregeorev.2026.107316
Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

Gallery:

Be3Al2(Si6O18)ⓘ Beryl var. Emerald
trans.png
Emerald, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Emerald

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
Ca(WO4)ⓘ Scheelite
trans.png
Scheelite, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Scheelite, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China
trans.png
Scheelite, etc.

Saxi Scheelite and Emerald Mine, Dayakou Hill, Mengdong Township, Malipo County, Wenshan, Yunnan, China

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘvar. Emerald9.CJ.05Be3Al2(Si6O18)
ⓘOxy-dravite9.CK.05Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
ⓘOxy-schorl9.CK.05Na(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3O
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘMuscovite
var. Fuchsite		9.EC.15K(Al,Cr)3Si3O10(OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Epidote Group'-(A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Hⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Hⓘ Epidote Group(A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH)
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ Beryl var. EmeraldBe3Al2(Si6O18)
BBoron
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Bⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Bⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CalciteCaCO3
Oⓘ Beryl var. EmeraldBe3Al2(Si6O18)
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Oⓘ ApatiteCa5(PO4)3A
Oⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Oⓘ Epidote Group(A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Naⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Naⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ Beryl var. EmeraldBe3Al2(Si6O18)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Alⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ Beryl var. EmeraldBe3Al2(Si6O18)
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Siⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Siⓘ Epidote Group(A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ ScheeliteCa(WO4)
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3A
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ TitaniteCaTiO(SiO4)
CrChromium
Crⓘ Muscovite var. FuchsiteK(Al,Cr)3Si3O10(OH)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
AsArsenic
Asⓘ ArsenopyriteFeAsS
WTungsten
Wⓘ ScheeliteCa(WO4)

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian PlateTectonic Plate

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References

Ottens, B. (2006) Smaragd aus Dayakou. Lapis, 31 (4) 13-20
Groat, L.A.; Giuliani, G.; Marshall, D.D.; Turner, D. (2008) Emerald deposits and occurrences: A review. Ore Geology Reviews, 34 (1-2). 87-112 doi:10.1016/j.oregeorev.2007.09.003
Xue, G., Marshall, D., Zhang, S., Ullrich, T. D., Bishop, T., Groat, L. A., Thorkelson, D. J., Giuliani, G., Fallick, A. E. (2010) Conditions for Early Cretaceous Emerald Formation at Dyakou, China: Fluid Inclusion, Ar-Ar, and Stable Isotope Studies. Economic Geology, 105 (2) 339-349 doi:10.2113/gsecongeo.105.2.339
Cuifang Xu, Peihua Shu, and Jianping Wang (2010): The metallogenesis rule of Saxi scheelite deposit in Malipo, Yunnan. Yunnan Geology 29(3), 318-322.
Zheng, Yuyu, Yu, Xiaoyan, Guo, Hongshu (2019) Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination. Minerals, 9 (12) 777 doi:10.3390/min9120777
Long, Zhengyu; Yu, Xiaoyan; Zheng, Yuyu (2021) Ore formation of the Dayakou emerald deposit (Southwest China) constrained by chemical and boron isotopic composition of tourmaline. Ore Geology Reviews, 135. 104208 doi:10.1016/j.oregeorev.2021.104208
www.sciencedirect.com (n.d.) https://www.sciencedirect.com/science/article/abs/pii/S0169136821002341
[1]Tang, Zi-Chao; Zhao, Xiao-Yu; Deng, Ming-Guo; Li, Wen-Chang; Chen, Ying-Hua; Zhang, Qing-Ge; Zhang, Ding-Cai (2026) Scheelite geochemistry constrains the origin of W mineralization in the Laojunshan district, Southeast Yunnnan, China: Comparative studies from the Nanyangtian, Changtian and Saxi deposits. Ore Geology Reviews, 190. 107179 doi:10.1016/j.oregeorev.2026.107179
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