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Chaxi Au deposit, Tongdao Co., Huaihua, Hunan, Chinai
Regional Level Types
Chaxi Au depositDeposit
Tongdao Co.County
HuaihuaPrefecture-level City
HunanProvince
ChinaCountry

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Latitude & Longitude (WGS84):
26° 23' 59'' North , 109° 46' 0'' East
Latitude & Longitude (decimal):
26.40000,109.76667
GRN:
N18E70
Type:
Deposit
Kรถppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Xianxi2,910 (2012)14.3km
Leโ€™anpu Miaozudongzuxiang620 (2012)17.1km
Linkou2,270 (2004)19.5km
Diyangping550 (2015)21.6km
Pukou1,950 (2012)25.0km
Mindat Locality ID:
423499
Long-form identifier:
mindat:1:2:423499:2
GUID (UUID V4):
0


The stratigraphic sequences that crop out in the district comprise, from oldest to youngest, the Neoproterozoic Jiangkou Formation, Xiangmeng Formation, Nantuo Formation, and Quaternary sediments. The Nantuo Formation is primarily composed of sericite slate and silty slate, which occur conformably above carbonaceous slate of the Xiangmeng Formation. The Jiangkou Formation is divided into two lithologic membersโ€”the upper feldspathic quartz sandstone member and the lower sericite slate member. The upper feldspathic quartz sandstone is the only ore-bearing strata at Chaxi and is located proximal to numerous faults.
A total of 45 NW-trending auriferous quartz veins occur in the feldspathic quartz sandstone at Chaxi. Among them, the V10, V11, V15, and V16 ore-bearing veins are the most economically significant. Based on mineral assemblages and crosscutting relationships of veins, the paragenetic sequence of mineralization and alteration at Chaxi can be divided into five stages associated with different alteration types: pre-ore stage I quartz-sericite veins associated with pyrite + phyllic alteration; stage II quartz-chalcopyrite-electrum veins associated with pyrite alteration; stage III quartz-dolomite-polymetallic sulfide-native gold veins associated with sericite alteration; stage IV quartz-dolomite-polymetallic sulfide-native gold veins associated with chlorite alteration; and post-ore stage V quartz-dolomite veins (Figs. 4โ€“8). In addition, a supergene stage (VI) has also been identified based on the presence of a supergene mineral assemblage. The Chaxi gold deposit shares similar structural, age, alteration, and ore-forming fluid characteristics with typical orogenic deposits. To date, the Chaxi deposit has yielded a total proven gold reserve of 5.8 t at an average grade of 4.28 g/t, excluding the super-enriched gold ores. By the end of 2023, 2.8 t of gold had been extracted, with over 0.3 t mined that year.

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.


Mineral List


40 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

Detailed Mineral List:

โ“˜ Aikinite
Formula: PbCuBiS3
โ“˜ Aleksite
Formula: PbBi2Te2S2
โ“˜ Anglesite
Formula: PbSO4
โ“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
โ“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
โ“˜ Berryite
Formula: Cu3Ag2Pb3Bi7S16
โ“˜ Bornite
Formula: Cu5FeS4
โ“˜ Bournonite
Formula: PbCuSbS3
โ“˜ 'Bursaite'
Formula: Pb5Bi4S11 (?)
โ“˜ Calcite
Formula: CaCO3
โ“˜ Carrollite
Formula: CuCo2S4
โ“˜ Chalcocite
Formula: Cu2S
โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ 'Chlorite Group'
โ“˜ Chloritoid
Formula: Fe2+Al2O(SiO4)(OH)2
โ“˜ Cosalite
Formula: Pb2Bi2S5
โ“˜ Covellite
Formula: CuS
โ“˜ Digenite
Formula: Cu9S5
โ“˜ Dolomite
Formula: CaMg(CO3)2
โ“˜ Enargite
Formula: Cu3AsS4
โ“˜ Galena
Formula: PbS
โ“˜ Goethite
Formula: Fe3+O(OH)
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Hessite
Formula: Ag2Te
โ“˜ Jalpaite
Formula: Ag3CuS2
โ“˜ Lepidocrocite
Formula: Fe3+O(OH)
โ“˜ 'Limonite'
โ“˜ Malachite
Formula: Cu2(CO3)(OH)2
โ“˜ Molybdenite
Formula: MoS2
โ“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Native Bismuth
Formula: Bi
โ“˜ Native Gold
Formula: Au
โ“˜ Native Gold var. Electrum
Formula: (Au,Ag)
โ“˜ Native Silver
Formula: Ag
โ“˜ Petzite
Formula: Ag3AuTe2
โ“˜ Pyrite
Formula: FeS2
โ“˜ Quartz
Formula: SiO2
โ“˜ Rutile
Formula: TiO2
โ“˜ Siderite
Formula: FeCO3
โ“˜ Sinnerite
Formula: Cu6As4S9
โ“˜ Sphalerite
Formula: ZnS
โ“˜ Stromeyerite
Formula: AgCuS
โ“˜ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
โ“˜ Tetradymite
Formula: Bi2Te2S
โ“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
โ“˜ Valentinite
Formula: Sb2O3
โ“˜ Wittichenite
Formula: Cu3BiS3

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Gold
var. Electrum		1.AA.05(Au,Ag)
โ“˜1.AA.05Au
โ“˜Native Silver1.AA.05Ag
โ“˜Native Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
โ“˜Chalcocite2.BA.05Cu2S
โ“˜Digenite2.BA.10Cu9S5
โ“˜Bornite2.BA.15Cu5FeS4
โ“˜Stromeyerite2.BA.40AgCuS
โ“˜Jalpaite2.BA.45Ag3CuS2
โ“˜Hessite2.BA.60Ag2Te
โ“˜Petzite2.BA.75Ag3AuTe2
โ“˜Covellite2.CA.05aCuS
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Galena2.CD.10PbS
โ“˜Carrollite2.DA.05CuCo2S4
โ“˜Tetradymite2.DC.05Bi2Te2S
โ“˜Molybdenite2.EA.30MoS2
โ“˜Pyrite2.EB.05aFeS2
โ“˜Wittichenite2.GA.20Cu3BiS3
โ“˜Bournonite2.GA.50PbCuSbS3
โ“˜'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
โ“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
โ“˜Sinnerite2.GC.10Cu6As4S9
โ“˜Aleksite2.GC.40aPbBi2Te2S2
โ“˜Aikinite2.HB.05aPbCuBiS3
โ“˜Berryite2.HB.20dCu3Ag2Pb3Bi7S16
โ“˜Cosalite2.JB.10Pb2Bi2S5
โ“˜'Bursaite'2.JB.40aPb5Bi4S11 (?)
โ“˜Enargite2.KA.05Cu3AsS4
Group 4 - Oxides and Hydroxides
โ“˜Goethite4.00.Fe3+O(OH)
โ“˜Hematite4.CB.05Fe2O3
โ“˜Valentinite4.CB.55Sb2O3
โ“˜Quartz4.DA.05SiO2
โ“˜Rutile4.DB.05TiO2
โ“˜Lepidocrocite4.FE.15Fe3+O(OH)
Group 5 - Nitrates and Carbonates
โ“˜Calcite5.AB.05CaCO3
โ“˜Siderite5.AB.05FeCO3
โ“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
โ“˜Dolomite5.AB.10CaMg(CO3)2
โ“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Anglesite7.AD.35PbSO4
Group 9 - Silicates
โ“˜Chloritoid9.AF.85Fe2+Al2O(SiO4)(OH)2
โ“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
โ“˜'Chlorite Group'-
โ“˜'Limonite'-
โ“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hโ“˜ ChloritoidFe2+Al2O(SiO4)(OH)2
Hโ“˜ GoethiteFe3+O(OH)
Hโ“˜ LepidocrociteFe3+O(OH)
Hโ“˜ MalachiteCu2(CO3)(OH)2
Hโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cโ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cโ“˜ CalciteCaCO3
Cโ“˜ DolomiteCaMg(CO3)2
Cโ“˜ MalachiteCu2(CO3)(OH)2
Cโ“˜ SideriteFeCO3
OOxygen
Oโ“˜ AnglesitePbSO4
Oโ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oโ“˜ CalciteCaCO3
Oโ“˜ ChloritoidFe2+Al2O(SiO4)(OH)2
Oโ“˜ DolomiteCaMg(CO3)2
Oโ“˜ GoethiteFe3+O(OH)
Oโ“˜ HematiteFe2O3
Oโ“˜ LepidocrociteFe3+O(OH)
Oโ“˜ MalachiteCu2(CO3)(OH)2
Oโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oโ“˜ QuartzSiO2
Oโ“˜ RutileTiO2
Oโ“˜ SideriteFeCO3
Oโ“˜ ValentiniteSb2O3
Oโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgโ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgโ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alโ“˜ ChloritoidFe2+Al2O(SiO4)(OH)2
Alโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siโ“˜ ChloritoidFe2+Al2O(SiO4)(OH)2
Siโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siโ“˜ QuartzSiO2
Siโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
Pโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sโ“˜ AikinitePbCuBiS3
Sโ“˜ AleksitePbBi2Te2S2
Sโ“˜ AnglesitePbSO4
Sโ“˜ BerryiteCu3Ag2Pb3Bi7S16
Sโ“˜ BorniteCu5FeS4
Sโ“˜ BournonitePbCuSbS3
Sโ“˜ BursaitePb5Bi4S11 (?)
Sโ“˜ CarrolliteCuCo2S4
Sโ“˜ ChalcopyriteCuFeS2
Sโ“˜ ChalcociteCu2S
Sโ“˜ CosalitePb2Bi2S5
Sโ“˜ CovelliteCuS
Sโ“˜ DigeniteCu9S5
Sโ“˜ EnargiteCu3AsS4
Sโ“˜ GalenaPbS
Sโ“˜ JalpaiteAg3CuS2
Sโ“˜ MolybdeniteMoS2
Sโ“˜ PyriteFeS2
Sโ“˜ SinneriteCu6As4S9
Sโ“˜ SphaleriteZnS
Sโ“˜ StromeyeriteAgCuS
Sโ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sโ“˜ TetradymiteBi2Te2S
Sโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sโ“˜ WitticheniteCu3BiS3
ClChlorine
Clโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caโ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caโ“˜ CalciteCaCO3
Caโ“˜ DolomiteCaMg(CO3)2
Caโ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiโ“˜ RutileTiO2
FeIron
Feโ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feโ“˜ BorniteCu5FeS4
Feโ“˜ ChalcopyriteCuFeS2
Feโ“˜ ChloritoidFe2+Al2O(SiO4)(OH)2
Feโ“˜ GoethiteFe3+O(OH)
Feโ“˜ HematiteFe2O3
Feโ“˜ LepidocrociteFe3+O(OH)
Feโ“˜ PyriteFeS2
Feโ“˜ SideriteFeCO3
CoCobalt
Coโ“˜ CarrolliteCuCo2S4
CuCopper
Cuโ“˜ AikinitePbCuBiS3
Cuโ“˜ BerryiteCu3Ag2Pb3Bi7S16
Cuโ“˜ BorniteCu5FeS4
Cuโ“˜ BournonitePbCuSbS3
Cuโ“˜ CarrolliteCuCo2S4
Cuโ“˜ ChalcopyriteCuFeS2
Cuโ“˜ ChalcociteCu2S
Cuโ“˜ CovelliteCuS
Cuโ“˜ DigeniteCu9S5
Cuโ“˜ EnargiteCu3AsS4
Cuโ“˜ JalpaiteAg3CuS2
Cuโ“˜ MalachiteCu2(CO3)(OH)2
Cuโ“˜ SinneriteCu6As4S9
Cuโ“˜ StromeyeriteAgCuS
Cuโ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuโ“˜ WitticheniteCu3BiS3
ZnZinc
Znโ“˜ SphaleriteZnS
AsArsenic
Asโ“˜ EnargiteCu3AsS4
Asโ“˜ SinneriteCu6As4S9
Asโ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
MoMolybdenum
Moโ“˜ MolybdeniteMoS2
AgSilver
Agโ“˜ BerryiteCu3Ag2Pb3Bi7S16
Agโ“˜ Native Gold var. Electrum(Au,Ag)
Agโ“˜ HessiteAg2Te
Agโ“˜ JalpaiteAg3CuS2
Agโ“˜ PetziteAg3AuTe2
Agโ“˜ Native SilverAg
Agโ“˜ StromeyeriteAgCuS
SbAntimony
Sbโ“˜ BournonitePbCuSbS3
Sbโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sbโ“˜ ValentiniteSb2O3
TeTellurium
Teโ“˜ AleksitePbBi2Te2S2
Teโ“˜ HessiteAg2Te
Teโ“˜ PetziteAg3AuTe2
Teโ“˜ TetradymiteBi2Te2S
AuGold
Auโ“˜ Native Gold var. Electrum(Au,Ag)
Auโ“˜ Native GoldAu
Auโ“˜ PetziteAg3AuTe2
PbLead
Pbโ“˜ AikinitePbCuBiS3
Pbโ“˜ AleksitePbBi2Te2S2
Pbโ“˜ AnglesitePbSO4
Pbโ“˜ BerryiteCu3Ag2Pb3Bi7S16
Pbโ“˜ BournonitePbCuSbS3
Pbโ“˜ BursaitePb5Bi4S11 (?)
Pbโ“˜ CosalitePb2Bi2S5
Pbโ“˜ GalenaPbS
BiBismuth
Biโ“˜ AikinitePbCuBiS3
Biโ“˜ AleksitePbBi2Te2S2
Biโ“˜ BerryiteCu3Ag2Pb3Bi7S16
Biโ“˜ Native BismuthBi
Biโ“˜ BursaitePb5Bi4S11 (?)
Biโ“˜ CosalitePb2Bi2S5
Biโ“˜ TetradymiteBi2Te2S
Biโ“˜ WitticheniteCu3BiS3

Other Regions, Features and Areas containing this locality

AsiaContinent
China
Eurasian Plate
Yangtze PlateTectonic Plate

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

Chen, Shu-Min, Yu-Xuan Zhou, Bin Li, Jin-Hong Wu, Hong-Tao Zhao, Zhi-Ming Zhang, and Hao Zeng. (2022) "Genesis of Chaxi Gold Deposit in Southwestern Hunan Province, Jiangnan Orogen (South China): Constraints from Fluid Inclusions, H-O-S-Pb Isotopes, and Pyrite Trace Element Concentrations" Minerals 12, no. 7: 867. https://doi.org/10.3390/min12070867
[1]Song, Shuling; Zhang, Yu; Creaser, Robert A.; Chen, Huayong; Deng, Changzhou; Brzozowski, Matthew J.; Yin, Runsheng; Toma, Jonathan; Shao, Yongjun; Li, Hongbin; et al. (2025) Multiple Isotopic Constraints on the Origin of the High-Grade Chaxi Gold Deposit in the Jiangnan Orogenic Belt, South China. Economic Geology, 120 (4). doi:10.5382/econgeo.5153
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