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Lizi Au deposit, Qinzhou District, Tianshui, Gansu, Chinai
Regional Level Types
Lizi Au depositDeposit
Qinzhou DistrictDistrict
TianshuiPrefecture-level City
GansuProvince
ChinaCountry

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Latitude & Longitude (WGS84):
34° 12' 15'' North , 105° 55' 29'' East
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Beidao74,767 (2012)40.6km
Tianshui3,500,000 (2013)45.0km
Mindat Locality ID:
234697
Long-form identifier:
mindat:1:2:234697:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Liziyuan Au deposit; Liziyuan gold deposit
Name(s) in local language(s):
李子金矿床, 秦州区, 天水市, 甘肃省, 中国


Altered rock and quartz vein-type gold mineralizations, occurring in amphibolite schists and Indosinian intrusive rocks along a fracture zone. The deposit is worked by three small mines, each of which is centered on particular lithologies and mineralization styles.

The Lizi Gold Deposit is situated in Tianshui City, Gansu Province, People's Republic of China. The exposed strata in the mining area consist predominantly of greenschist-facies metasedimentary and metavolcanic rocks of the Ordovician Liziyuan Group, with minor occurrences of Precambrian Qinling Group migmatite. Magmatic rocks are extensively exposed in the mining district, primarily comprising three porphyry groups and the Tianzishan monzogranite. Among these, the Tianzishan monzogranite represents the largest intrusive body, with a previously reported crystallization age of 236.1 ± 1.9 Ma. The Lizi gold deposit consists of five mining segments: Shenjiagou, Kuangou, Jiancaowan, Liushagou, and Suishizi. The Shenjiagou, Kuangou, Jiancaowan, and Liushagou segments are hosted in schists of the Liziyuan Group and are controlled by NW-trending ductile–brittle shear zones, occurring as parallel lenses and veins. In contrast, the Suishizi gold deposit is hosted within the Tianzishan monzogranite and is controlled by diorite porphyry dikes and NE-trending faults. The goldfield has cumulative proven reserves exceeding 50 tonnes, with an average grade of 10 g/t.
The mineralization process of the Lizi gold deposit is divided into four stages:
(1) Stage I: Quartz-Sericite-Pyrite Stage. This stage is characterized by milky white quartz veins developed within the Liziyuan Group strata, sharp contacts with the host rocks. The alteration assemblage is dominated by sericitization and silicification.
(2) Stage Ⅱ: Pyrite-Gold Stage. Gold-bearing pyrite-pyrrhotite veins crosscut the Stage I quartz veins, with irregular boundaries, and common branching and rejoining. The alteration assemblage consists of chloritization, epidotization, albitization, and pyritization. Native gold occurs mainly in fractures or as inclusions within pyrite, pyrrhotite, galena, tetrahedrite, and quartz. Te–Bi minerals are closely associated with gold.
(3) Stage Ⅲ: Chalcopyrite-Gold Stage. Chalcopyrite-native gold veins crosscut or envelop Stage Ⅱ veins. The alteration assemblage is characterized by carbonatization, and magnetite–hematite alteration. Native gold is found in association with chalcopyrite, galena, galenobismutite, magnetite, and hematite within fractures of pyrite and quartz.
(4) Stage IV: Quartz-Calcite Stage. Quartz-calcite veinlets crosscut veins from the previous three stages. They are either devoid of sulfides or contain minor pyrite, marking the termination of mineralization.
Yuzigou, Liushagou, Jiancaowan, Kuangou, Suishizi, and Yingfang mining camps.

The Liziyuan Au deposit is a typical example hosted in brittle to ductile shear zones developed in greenschist-facies metasedimentary volcanic rocks and Triassic intrusions. The deposit contains three main sections at Shenjiagou, Suishizi, and Jiancaowan.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

35 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite
Formula: Ag2S
Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Albite
Formula: Na(AlSi3O8)
Altaite
Formula: PbTe
'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
'Apatite'
Formula: Ca5(PO4)3A
Arsenopyrite
Formula: FeAsS
'Beegerite'
Formula: Pb6Bi2S9
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Bismuthinite
Formula: Bi2S3
Calcite
Formula: CaCO3
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Chalcostibite
Formula: CuSbS2
'Chlorite Group'
Covellite
Formula: CuS
Digenite
Formula: Cu9S5
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Galena
Formula: PbS
Galenobismutite
Formula: PbBi2S4
Hematite
Formula: Fe2O3
Hessite
Formula: Ag2Te
References:
'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
Lillianite
Formula: Pb3-2xAgxBi2+xS6
Magnetite
Formula: Fe2+Fe3+2O4
Marcasite
Formula: FeS2
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Bismuth
Formula: Bi
References:
Native Gold
Formula: Au
Native Gold var. Electrum
Formula: (Au,Ag)
Native Silver
Formula: Ag
Native Silver var. Küstelite
Formula: Ag
Petzite
Formula: Ag3AuTe2
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Pyrite
Formula: FeS2
Pyrite var. Gold-bearing Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Sphalerite
Formula: ZnS
Tellurobismuthite
Formula: Bi2Te3
'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
References:
'Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite'
Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Titanite
Formula: CaTiO(SiO4)
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold
var. Electrum
1.AA.05(Au,Ag)
1.AA.05Au
Native Silver1.AA.05Ag
var. Küstelite1.AA.05Ag
Native Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Digenite2.BA.10Cu9S5
Acanthite2.BA.35Ag2S
Hessite2.BA.60Ag2Te
Petzite2.BA.75Ag3AuTe2
Covellite2.CA.05aCuS
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Altaite2.CD.10PbTe
Galena2.CD.10PbS
Bismuthinite2.DB.05Bi2S3
Tellurobismuthite2.DC.05Bi2Te3
Molybdenite2.EA.30MoS2
Pyrite
var. Gold-bearing Pyrite
2.EB.05aFeS2
2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Arsenopyrite2.EB.20FeAsS
'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
'var. Silver-bearing Tetrahedrite'2.GB.05(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Chalcostibite2.HA.05CuSbS2
Galenobismutite2.JB.25ePbBi2S4
Lillianite2.JB.40aPb3-2xAgxBi2+xS6
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Zircon9.AD.30Zr(SiO4)
Titanite9.AG.15CaTiO(SiO4)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Amphibole Supergroup'-AB2C5(T8O22)W2
'Beegerite'-Pb6Bi2S9
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Chlorite Group'-
'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'K Feldspar'-
'Apatite'-Ca5(PO4)3A

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 KaoliniteAl2(Si2O5)(OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AlbiteNa(AlSi3O8)
O Amphibole SupergroupAB2C5(T8O22)W2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O CalciteCaCO3
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O HematiteFe2O3
O KaoliniteAl2(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O TitaniteCaTiO(SiO4)
O ZirconZr(SiO4)
O Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O ApatiteCa5(PO4)3A
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
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
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al KaoliniteAl2(Si2O5)(OH)4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
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 Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si KaoliniteAl2(Si2O5)(OH)4
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si TitaniteCaTiO(SiO4)
Si ZirconZr(SiO4)
Si Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
P ApatiteCa5(PO4)3A
SSulfur
S AcanthiteAg2S
S ArsenopyriteFeAsS
S Pyrite var. Gold-bearing PyriteFeS2
S BeegeritePb6Bi2S9
S BismuthiniteBi2S3
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S ChalcostibiteCuSbS2
S CovelliteCuS
S DigeniteCu9S5
S GalenaPbS
S GalenobismutitePbBi2S4
S LillianitePb3-2xAgxBi2+xS6
S MarcasiteFeS2
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
S Tennantite SubgroupCu6(Cu4C22+)As4S12S
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(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 TitaniteCaTiO(SiO4)
Ca Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
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 RutileTiO2
Ti TitaniteCaTiO(SiO4)
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe ArsenopyriteFeAsS
Fe Pyrite var. Gold-bearing PyriteFeS2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
CuCopper
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu ChalcostibiteCuSbS2
Cu CovelliteCuS
Cu DigeniteCu9S5
Cu Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cu Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
ZnZinc
Zn SphaleriteZnS
Zn Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
AsArsenic
As ArsenopyriteFeAsS
As Tennantite SubgroupCu6(Cu4C22+)As4S12S
ZrZirconium
Zr ZirconZr(SiO4)
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag AcanthiteAg2S
Ag Native Gold var. Electrum(Au,Ag)
Ag HessiteAg2Te
Ag LillianitePb3-2xAgxBi2+xS6
Ag PetziteAg3AuTe2
Ag Native SilverAg
Ag Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Ag Native Silver var. KüsteliteAg
SbAntimony
Sb ChalcostibiteCuSbS2
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sb Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
TeTellurium
Te AltaitePbTe
Te HessiteAg2Te
Te PetziteAg3AuTe2
Te TellurobismuthiteBi2Te3
AuGold
Au Native Gold var. Electrum(Au,Ag)
Au Native GoldAu
Au PetziteAg3AuTe2
PbLead
Pb AltaitePbTe
Pb BeegeritePb6Bi2S9
Pb GalenaPbS
Pb GalenobismutitePbBi2S4
Pb LillianitePb3-2xAgxBi2+xS6
BiBismuth
Bi BeegeritePb6Bi2S9
Bi Native BismuthBi
Bi BismuthiniteBi2S3
Bi GalenobismutitePbBi2S4
Bi LillianitePb3-2xAgxBi2+xS6
Bi TellurobismuthiteBi2Te3

Localities in this Region

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian PlateTectonic Plate

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