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Yonaguni Knoll IV Hydrothermal Field, Okinawa Trough, Senkaku Islands (Diaoyudao Islands; Diaoyutai Islands), Ishigaki City, Okinawa Prefecture, Japani
Regional Level Types
Yonaguni Knoll IV Hydrothermal FieldGroup of Hydrothermal Vents
Okinawa Trough- not defined -
Senkaku Islands (Diaoyudao Islands; Diaoyutai Islands)Group of Islands
Ishigaki CityCity
Okinawa PrefecturePrefecture
JapanCountry

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Latitude & Longitude (WGS84):
24° 51' North , 122° 42' East
Latitude & Longitude (decimal):
24.85000,122.70000
GeoHash:
G#: wsrm25g3t
GRN:
N17E79
Type:
Group of Hydrothermal Vents
Nearest Settlements:
PlacePopulationDistance
Yonakuni1,684 (2017)52.3km
Mindat Locality ID:
259191
Long-form identifier:
mindat:1:2:259191:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Daiyon-Yonaguni Knoll


The collected hydrothermal precipitates demonstrated a diverse range of mineralization, which can be classified into five groups: (i) anhydrite-rich chimneys, immature precipitates including sulfide disseminations in anhydrite; (ii) massive Zn-Pb-Cu sulfides, consisting of sphalerite, wurtzite, galena, chalco-pyrite, pyrite, and marcasite; (iii) Ba-As chimneys, composed of barite with sulfide disseminations, sometimes associated with realgar and orpiment overgrowth; (iv) Mn-rich chimneys, consisting of carbonates (calcite and magnesite) and sulfides (sphalerite, galena, chalcopyrite, alabandite, and minor amount of tennantite and enargite); and (v) pavement, silicified sediment including abundant native sulfur or barite. Sulfide/sulfate mineralization (groups i – iii) was found in the chimney–mound structure associated with vapor-loss (Cl-enriched) fluid venting.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

28 valid minerals.

Detailed Mineral List:

ⓘ Alabandite
Formula: MnS
ⓘ Anhydrite
Formula: CaSO4
ⓘ Baryte
Formula: BaSO4
ⓘ Bismuthinite
Formula: Bi2S3
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Covellite
Formula: CuS
ⓘ Enargite
Formula: Cu3AsS4
ⓘ Galena
Formula: PbS
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Isocubanite
Formula: CuFe2S3
ⓘ Magnesite
Formula: MgCO3
ⓘ Marcasite
Formula: FeS2
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Native Sulphur
Formula: S8
ⓘ Nukundamite
Formula: Cu3.33Fe0.66S4
ⓘ Orpiment
Formula: As2S3
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Realgar
Formula: As4S4
ⓘ Rhodochrosite
Formula: MnCO3
ⓘ Samsonite
Formula: Ag4MnSb2S6
ⓘ Sphalerite
Formula: ZnS
ⓘ Stibnite
Formula: Sb2S3
ⓘ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Wurtzite
Formula: (Zn,Fe)S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘNukundamite2.CA.10Cu3.33Fe0.66S4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘWurtzite2.CB.45(Zn,Fe)S
ⓘIsocubanite2.CB.55bCuFe2S3
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘAlabandite2.CD.10MnS
ⓘGalena2.CD.10PbS
ⓘBismuthinite2.DB.05Bi2S3
ⓘStibnite2.DB.05Sb2S3
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘRealgar2.FA.15aAs4S4
ⓘOrpiment2.FA.30As2S3
ⓘSamsonite2.GA.15Ag4MnSb2S6
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘEnargite2.KA.05Cu3AsS4
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMagnesite5.AB.05MgCO3
ⓘRhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MagnesiteMgCO3
Cⓘ RhodochrositeMnCO3
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ MagnesiteMgCO3
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ QuartzSiO2
Oⓘ RhodochrositeMnCO3
NaSodium
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mgⓘ MagnesiteMgCO3
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ QuartzSiO2
SSulfur
Sⓘ AlabanditeMnS
Sⓘ AnhydriteCaSO4
Sⓘ BaryteBaSO4
Sⓘ BismuthiniteBi2S3
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CovelliteCuS
Sⓘ EnargiteCu3AsS4
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ IsocubaniteCuFe2S3
Sⓘ MarcasiteFeS2
Sⓘ NukundamiteCu3.33Fe0.66S4
Sⓘ OrpimentAs2S3
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ RealgarAs4S4
Sⓘ SamsoniteAg4MnSb2S6
Sⓘ SphaleriteZnS
Sⓘ StibniteSb2S3
Sⓘ Native SulphurS8
Sⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sⓘ Wurtzite(Zn,Fe)S
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MnManganese
Mnⓘ AlabanditeMnS
Mnⓘ RhodochrositeMnCO3
Mnⓘ SamsoniteAg4MnSb2S6
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ IsocubaniteCuFe2S3
Feⓘ MarcasiteFeS2
Feⓘ NukundamiteCu3.33Fe0.66S4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Wurtzite(Zn,Fe)S
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CovelliteCuS
Cuⓘ EnargiteCu3AsS4
Cuⓘ IsocubaniteCuFe2S3
Cuⓘ NukundamiteCu3.33Fe0.66S4
Cuⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
Znⓘ Wurtzite(Zn,Fe)S
AsArsenic
Asⓘ EnargiteCu3AsS4
Asⓘ OrpimentAs2S3
Asⓘ RealgarAs4S4
Asⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
AgSilver
Agⓘ SamsoniteAg4MnSb2S6
SbAntimony
Sbⓘ SamsoniteAg4MnSb2S6
Sbⓘ StibniteSb2S3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ GalenaPbS
BiBismuth
Biⓘ BismuthiniteBi2S3

Localities in this Region

Japan

Other Regions, Features and Areas containing this locality

Eurasian Plate
Okinawa 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

Kaul, G., Chiba, I., & Katsuo, K. (2005) Tin-bearing chalcopyrite and platinum-bearing bismuthinite in the active Tiger chimney, Yonaguni Knoll IV seafloor hydrothermal system, South Okinawa Trough, Japan. Earth Science Reports, 12:1-5
[1]Suzuki, R., Ishibashi, J. I., Nakaseama, M., Konno, U., Tsunogai, U., Gena, K., & Chiba, H. (2008). Diverse range of mineralization induced by phase separation of hydrothermal fluid: Case study of the Yonaguni Knoll IV Hydrothermal Field in the Okinawa Trough Back‐Arc Basin. Resource geology, 58(3), 267-288.
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