The Xiaonangou gold deposit, with an estimated gold reserve exceeding 60 t and a mean grade of 1.6 g/t, is located in the eastern center of the Xiong’ershan area. The regional stratigraphy exposed is primarily the Jidanping Formation from the Paleoproterozoic Xiong’er Group, comprising rhyolitic porphyry, andesite and dacite.
The F39 fracture alteration zone is about 9 km long and 30–100 m wide, with a dipping of 255–301°, with a dip angle of 17–65°. From south to north, the dip angle changes from gentle to steep. The F39 is mainly composed of structural breccia, cataclasite and mylonite. The main ore body (Ⅰ-1) is controlled by the N-NE F39 fracture, which has a dipping of approximately 285°, with a dip angle of 15°-55°, and extends continuously for 3000 m . The ore body (Ⅰ-1), which varies in thickness between 1 m and 61 m, with a mean of 7.6 m, occurs as vein and lenticular in the tectonic alteration zone. Its maximum gold grade and mean grade are separately 28 g/t and 1.66 g/t.
There are three stages of hydrothermal alteration and mineralization: the pre-ore K-feldspar + quartz (stage Ⅰ), the ore quartz + ankerite + disseminated pyrite + polymetallic sulfide (stage Ⅱ), and the post-ore quartz + carbonate (stage Ⅲ).

The Xiaonangou Au deposit is classified as a mesothermal to epithermal hydrothermal deposit controlled by fault structures, particularly the F8 ore-bearing structural zone. The deposit is hosted in volcanic rocks of the Paleoproterozoic Xiong'er Group, with mineralization occurring in altered rocks. Stage II can be further subdivided into two sub-stages based on mineral assemblage and pyrite occurrence: Stage IIa: Characterized by disseminated subhedral to anhedral pyrite within K-feldspar altered volcanic rocks, often forming anastomosing veins infilling fractures. Stage IIb: Characterized by quartz-pyrite-chalcopyrite assemblages, where pyrite exhibits subhedral-euhedral grains interstitial to quartz and K-feldspar. This stage is also evident in the gold-bearing quartz vein with symmetrically zoned potassic alteration halos.

Altered rock-type gold deposit, occurring in a NS-trending fracture zone.

Located about 6 km north of the Dianfang deposit.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Gold

Mineral List

21 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Hydrothermal breccia'

ⓘ Mylonite

ⓘ 'Porphyry'

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Wang, Mengqi, Mao, Jingwen, Wang, Zuoman, Yan, Guolong, Liu, Shufei, Jiang, Haoyuan, Tian, Yongfei, Wang, Peng, Chen, Gang, Miao, Guang, et al. (2024) Short wavelength infrared (SWIR) spectral and geochemical characteristics of white micas in the Xiaonangou gold deposit, East Qinling: As a hyperspectral tool in exploration. Ore Geology Reviews, 175. 106349 doi:10.1016/j.oregeorev.2024.106349

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

References:

Zhang, Dexian; Chen, Shaowei; Zen, Shuishi; Hu, Ziqi; C.Bayless, Richard (2025) In-situ monazite dating and mineral chemistry of Xiaonangou Au deposit, Qinling orogenic belt: Implications for Au mineralization. Ore Geology Reviews, 184. 106750 doi:10.1016/j.oregeorev.2025.106750

ⓘ Baryte

Formula: BaSO₄

References:

ⓘ Calcite

Formula: CaCO₃

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ Dickite

Formula: Al₂(Si₂O₅)(OH)₄

References:

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

ⓘ Fluorite

Formula: CaF₂

References:

ⓘ Galena

Formula: PbS

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Gold

Formula: Au

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Hematite

Formula: Fe₂O₃

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

ⓘ 'K Feldspar'

References:

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

ⓘ 'Monazite Group'

Formula: REE(PO₄)

References:

ⓘ Montmorillonite

Formula: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

References:

ⓘ Muscovite var. Phengite

Formula: KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂

References:

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

References:

ⓘ Paragonite

Formula: NaAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ Pyrite

Formula: FeS₂

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Quartz

Formula: SiO₂

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ Siderite

Formula: FeCO₃

References:

ⓘ Sphalerite

Formula: ZnS

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

References:

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Mineral Deposits 21(suppl.), 685-688

ⓘ 'White mica'

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 9 - Silicates
ⓘ	Muscovite var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Paragonite	9.EC.15	NaAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Muscovite var. Phengite	9.EC.15	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Montmorillonite	9.EC.40	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
ⓘ	Dickite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Monazite Group'	-	REE(PO₄)
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'K Feldspar'	-
ⓘ	'White mica'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Baryte	BaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Monazite Group	REE(PO₄)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Siderite	FeCO₃
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Na	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mg	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Al	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
P	Phosphorus
P	ⓘ Monazite Group	REE(PO₄)
S	Sulfur
S	ⓘ Baryte	BaSO₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
K	Potassium
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Orthoclase	K(AlSi₃O₈)
K	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Fe	Iron
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Siderite	FeCO₃
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Sb	Antimony
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Au	Gold
Au	ⓘ Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

AsiaContinent

China

Lvliang-Taihang Li Mineral BeltMineral Belt
North China OrogenOrogen

Eurasian PlateTectonic Plate

North China Craton
- Yanshan Fold BeltOrogenic Belt

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

Shulai Wang, Yongmin Hu, Jian Li, and Xinyou Zhu (2002): Characteristics of gold mine lay in near SN direction fault found at Dianfang gold mine's periphery and its significances. Mineral Deposits 21(suppl.), 685-688 (in CHinese with English title).

Laiyun Cui, Shihua Li, Handuo Ding, and Junshen Li (2005): The geochemical anomaly pattern of the Xiaonangou gold deposit in Songxian County, Henan Province. Geophysical and Geochemical Exploration 27(4), 312-315.

[1]Wang, Mengqi, Mao, Jingwen, Wang, Zuoman, Yan, Guolong, Liu, Shufei, Jiang, Haoyuan, Tian, Yongfei, Wang, Peng, Chen, Gang, Miao, Guang, et al. (2024) Short wavelength infrared (SWIR) spectral and geochemical characteristics of white micas in the Xiaonangou gold deposit, East Qinling: As a hyperspectral tool in exploration. Ore Geology Reviews, 175. 106349 doi:10.1016/j.oregeorev.2024.106349

[2]Zhang, Dexian; Chen, Shaowei; Zen, Shuishi; Hu, Ziqi; C.Bayless, Richard (2025) In-situ monazite dating and mineral chemistry of Xiaonangou Au deposit, Qinling orogenic belt: Implications for Au mineralization. Ore Geology Reviews, 184. 106750 doi:10.1016/j.oregeorev.2025.106750

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