A medium-scale gold deposit, hosting proven reserves of 12.5 tonnes (t) Au at an average grade of 4.14 g/t, with associated Ag resources of 136 t Ag averaging 45 g/t. The deposit contains a total of 5 gold (silver) orebodies, of which the No.1 orebody is the main orebody with a gentle dip angle. It developed within a complex auriferous hydrothermal system in the Jurassic intermediate-acid volcaniclastic rocks of the Nanyuan Formation and rhyolite porphyry, outside the Dongkeng volcanic Basin. The Dongji gold deposit comprises two distinct Au mineralization events, each with its own ore style and partial alteration mineralogy: an Au- and Ag-rich first stage (i.e., the ore stage 1), which constitutes the bulk of the Au endowment, and a relatively Au-rich but Ag-poor second stage (i.e., the ore stage 2). Dongji gold deposit is a subepithermal deposit formed near the porphyry hydrothermal system.

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

ⓘ Silver

Mineral List

18 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

ⓘ Breccia

ⓘ 'Hydrothermal breccia'

ⓘ 'Kaolin'

ⓘ 'Porphyry'

ⓘ Rhyolite

Detailed Mineral List:

ⓘ Anatase

Formula: TiO₂

References:

Fan, Ming-Sen, Ni, Pei, Pan, Jun-Yi, Ding, Jun-Ying, Chi, Zhe, Cui, Jian-Ming, Cheng, Zhi-Lin, Fan, Fei-Peng, Zheng, Guang-Shi (2025) Records of high temperature ore fluids through magmatic vapor contraction from the Dongji gold deposit, SE China. Ore Geology Reviews, 178. 106495 doi:10.1016/j.oregeorev.2025.106495

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

ⓘ Arsenopyrite

Formula: FeAsS

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ 'Feldspar Group'

References:

ⓘ Fluorite

Formula: CaF₂

References:

ⓘ Galena

Formula: PbS

References:

ⓘ Hematite

Formula: Fe₂O₃

References:

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

ⓘ 'K Feldspar'

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Muscovite var. Illite

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

References:

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Native Gold

Formula: Au

References:

ⓘ Native Gold var. Electrum

Formula: (Au,Ag)

References:

ⓘ Native Silver

Formula: Ag

References:

ⓘ Native Silver var. Küstelite

Formula: Ag

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ⓘ Naumannite

Formula: Ag₂Se

References:

ⓘ Pyrite

Formula: FeS₂

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ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ Quartz

Formula: SiO₂

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ⓘ Quartz var. Chalcedony

Formula: SiO₂

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ⓘ Rutile

Formula: TiO₂

References:

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold var. Electrum	1.AA.05	(Au,Ag)
ⓘ		1.AA.05	Au
ⓘ	Native Silver	1.AA.05	Ag
ⓘ	var. Küstelite	1.AA.05	Ag
Group 2 - Sulphides and Sulfosalts
ⓘ	Naumannite	2.BA.55	Ag₂Se
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz var. Chalcedony	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Anatase	4.DD.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	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
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Feldspar Group'	-
ⓘ	'K Feldspar'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)

List of minerals for each chemical element

H	Hydrogen
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	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Anatase	TiO₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Quartz var. Chalcedony	SiO₂
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	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Fluorite	CaF₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Al	Aluminium
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Anatase	TiO₂
Ti	ⓘ Rutile	TiO₂
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Se	Selenium
Se	ⓘ Naumannite	Ag₂Se
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Ag	Silver
Ag	ⓘ Native Gold var. Electrum	(Au,Ag)
Ag	ⓘ Naumannite	Ag₂Se
Ag	ⓘ Native Silver	Ag
Ag	ⓘ Native Silver var. Küstelite	Ag
Au	Gold
Au	ⓘ Native Gold var. Electrum	(Au,Ag)
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

AsiaContinent

Eurasian Plate

West CathaysiaOrogenic Belt

Yangtze PlateTectonic Plate

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References

[1]Fan, Ming-Sen, Ni, Pei, Pan, Jun-Yi, Ding, Jun-Ying, Chi, Zhe, Cui, Jian-Ming, Cheng, Zhi-Lin, Fan, Fei-Peng, Zheng, Guang-Shi (2025) Records of high temperature ore fluids through magmatic vapor contraction from the Dongji gold deposit, SE China. Ore Geology Reviews, 178. 106495 doi:10.1016/j.oregeorev.2025.106495

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Dongji Mine, Zhenghe County, Nanping, Fujian, ChinaiRegional Level TypesDongji MineMine Zhenghe CountyCounty NanpingPrefecture-level City FujianProvince ChinaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Commodity List

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Dongji Mine, Zhenghe County, Nanping, Fujian, China i
Regional Level Types
Dongji Mine Mine
Zhenghe County County
Nanping Prefecture-level City
Fujian Province
China Country