Quartz vein-type silver-rich deposit. Main ore mineral is argentiferous galena.

The Longmendian deposit is to be developed into a large Ag-dominated polymetallic deposit. Numerous Ag-bearing quartz veins or altered tectonite zones occur in the Taihua Supergroup or Xiong’er Group. The majority of these ore-bearing lodes are controlled by NE- or NNE-trending fractures that dip to NW at angles of 20–80◦. The largest Ag lode extends along strike for 2560 m, with thickness ranging approximately from 0.5 to 1.0 m; but most lodes are 360–1700 m long, with thickness of 0.4–8.0 m. These Ag lodes show common symmetrical alteration zones that are characterized by silicification proximal to the ore, followed by a zone of sericitization–silicification grading to a distal zone of chloritization–sericitization.
The Mo mineralization at Longmendian is limited to the Taihua Supergroup. Molybdenite disseminates in the altered amphibolite or microcline-dominated felsic veins filling the amphibolite. The ore bodies occur as (a) isolated veins or lenses in the Taihua Supergroup, (b) veins or lens crosscut by Ag-bearing veins or lodes, and (c) zones of brecciated or broken Mo-bearing veins enclosed in the Ag-bearing lodes.

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.

ⓘ Molybdenum

ⓘ Silver

Mineral List

25 valid minerals.

Rock Types Recorded

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite

Formula: Ag₂S

References:

Li, N., Chen, Y.J., Santosh, M., Yao, J.M., Sun, Y.L., Li, J. (2011) The 1.85Ga Mo mineralization in the Xiong’er Terrane, China: Implications for metallogeny associated with assembly of the Columbia supercontinent. Precambrian Research, 186 (1) 220-232 doi:10.1016/j.precamres.2011.01.019

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

References:

ⓘ 'Amphibole Supergroup'

Formula: AB₂C₅(T₈O₂₂)W₂

References:

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃A

References:

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Chalcocite

Formula: Cu₂S

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

References:

ⓘ 'Feldspar Group'

References:

ⓘ 'Feldspar Group var. Perthite'

References:

ⓘ Fluorite

Formula: CaF₂

References:

ⓘ Galena

Formula: PbS

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ Galena var. Silver-bearing Galena

Formula: PbS with Ag

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ 'K Feldspar'

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

ⓘ Molybdenite

Formula: MoS₂

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(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:

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ Proustite

Formula: Ag₃AsS₃

References:

ⓘ Pyrite

Formula: FeS₂

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ Quartz

Formula: SiO₂

References:

Dingsheng Zhao (2011): Gold Science and Technology 19(6), 18-21

ⓘ Quartz var. Milky Quartz

Formula: SiO₂

References:

ⓘ Realgar

Formula: As₄S₄

References:

ⓘ Rutile

Formula: TiO₂

References:

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ 'Tetrahedrite Group'

Formula: ^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)

ⓘ Titanite

Formula: CaTiO(SiO₄)

References:

ⓘ 'Tourmaline'

Formula: AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z

References:

ⓘ Tremolite

Formula: ◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

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
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Acanthite	2.BA.35	Ag₂S
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	var. Silver-bearing Galena	2.CD.10	PbS with Ag
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Realgar	2.FA.15a	As₄S₄
ⓘ	Proustite	2.GA.05	Ag₃AsS₃
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Milky Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTiO(SiO₄)
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Tremolite	9.DE.10	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
Unclassified
ⓘ	'Amphibole Supergroup'	-	AB₂C₅(T₈O₂₂)W₂
ⓘ	'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
ⓘ	'Feldspar Group var. Perthite'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'K Feldspar'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃A
ⓘ	'Tetrahedrite Group'	-	^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
B	Boron
B	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Amphibole Supergroup	AB₂C₅(T₈O₂₂)W₂
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Titanite	CaTiO(SiO₄)
O	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Quartz var. Milky Quartz	SiO₂
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Apatite	Ca₅(PO₄)₃A
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Al	Aluminium
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Titanite	CaTiO(SiO₄)
Si	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Quartz var. Milky Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃A
S	Sulfur
S	ⓘ Acanthite	Ag₂S
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Galena	PbS
S	ⓘ Molybdenite	MoS₂
S	ⓘ Proustite	Ag₃AsS₃
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Realgar	As₄S₄
S	ⓘ Sphalerite	ZnS
S	ⓘ Galena var. Silver-bearing Galena	PbS with Ag
S	ⓘ Tetrahedrite Group	^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Titanite	CaTiO(SiO₄)
Ca	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Apatite	Ca₅(PO₄)₃A
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Titanite	CaTiO(SiO₄)
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Cu	Copper
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcocite	Cu₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Proustite	Ag₃AsS₃
As	ⓘ Realgar	As₄S₄
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Ag	Silver
Ag	ⓘ Acanthite	Ag₂S
Ag	ⓘ Native Gold var. Electrum	(Au,Ag)
Ag	ⓘ Proustite	Ag₃AsS₃
Ag	ⓘ Native Silver	Ag
Ag	ⓘ Galena var. Silver-bearing Galena	PbS with Ag
Au	Gold
Au	ⓘ Native Gold var. Electrum	(Au,Ag)
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS
Pb	ⓘ Galena var. Silver-bearing Galena	PbS with Ag

Other Regions, Features and Areas containing this locality

AsiaContinent

China

Lvliang-Taihang Li Mineral BeltMineral Belt

Eurasian PlateTectonic Plate

North China CratonOrogen
- 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

Dingsheng Zhao (2011): Research on the geological characteristics and mineralization regularity of Longmendian silver mine, Henan Province. Gold Science and Technology 19(6), 18-21 (in Chinese with English abstract).

[1]Li, N., Chen, Y.J., Santosh, M., Yao, J.M., Sun, Y.L., Li, J. (2011) The 1.85Ga Mo mineralization in the Xiong’er Terrane, China: Implications for metallogeny associated with assembly of the Columbia supercontinent. Precambrian Research, 186 (1) 220-232 doi:10.1016/j.precamres.2011.01.019

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Longmendian Ag deposit, Luoning County, Luoyang, Henan, ChinaiRegional Level TypesLongmendian Ag depositDeposit Luoning CountyCounty LuoyangPrefecture-level City HenanProvince 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

Longmendian Ag deposit, Luoning County, Luoyang, Henan, China i
Regional Level Types
Longmendian Ag deposit Deposit
Luoning County County
Luoyang Prefecture-level City
Henan Province
China Country