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Ioi mine, Kusatsu City, Shiga Prefecture, Japani
Regional Level Types
Ioi mineMine
Kusatsu CityCity
Shiga PrefecturePrefecture
JapanCountry

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PhotosMapsSearch
06606170017272002096448.jpg
Entrance of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
04533490017272002119903.jpg
Inside of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
03285860017272002136922.jpg
Ioi Shrine

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
06606170017272002096448.jpg
Entrance of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
04533490017272002119903.jpg
Inside of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
03285860017272002136922.jpg
Ioi Shrine

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
06606170017272002096448.jpg
Entrance of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
04533490017272002119903.jpg
Inside of mining tunnel

Ioi mine, Kusatsu City, Shiga Prefecture, Japan
Latitude & Longitude (WGS84):
34° 59' 18'' North , 135° 58' 44'' East
Latitude & Longitude (decimal):
34.98851,135.97890
GRN:
N24E80
Type:
Mine
Age:
541 ± 1.0 to 252.17 ± 0.06 Ma
Geologic Time:
Paleozoic
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Kusatsu127,680 (2017)3.3km
Moriyama68,584 (2017)8.7km
Ōtsu298,164 (2017)10.3km
Minakuchichō-matoba38,986 (2017)17.3km
Ōmihachiman69,189 (2017)18.9km
Mindat Locality ID:
2190
Long-form identifier:
mindat:1:2:2190:9
GUID (UUID V4):
0
Name(s) in local language(s):
五百井鉱山, 滋賀県 栗東市


Metamorphosed sedimentary manganese ores, parallel to bedding in Paleozoic meta-chert. A granitic batholith outcrops 3 km east of the mine, and may be related to the regional metamorphism.

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


27 valid minerals. 1 (TL) - type locality of 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:

ⓘ Alabandite
Formula: MnS
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Alleghanyite ?
Formula: Mn2+5(SiO4)2(OH)2
Description: (Some of the material reported as "alleghanyite" from here turned out to be sonolite, and so other alleged alleghanyites should be reanalyzed.)
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Baryte
Formula: BaSO4
ⓘ Bementite
Formula: Mn7Si6O15(OH)8
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: "Manganophyllite" (Mn-rich phlogopite?)
ⓘ 'Biotite var. Manganophyllite'
Formula: K(Fe,Mg,Mn)3AlSi3O10(OH)2
ⓘ Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
ⓘ 'Chlorite Group'
ⓘ Cryptomelane
Formula: K(Mn4+7Mn3+)O16
ⓘ Feitknechtite
Formula: Mn3+O(OH)
ⓘ Galaxite
Formula: Mn2+Al2O4
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Hausmannite
Formula: Mn2+Mn3+2O4
ⓘ Jacobsite
Formula: Mn2+Fe3+2O4
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ Manganosite
Formula: MnO
ⓘ Marcasite
Formula: FeS2
ⓘ 'Mica Group'
ⓘ Neotocite
Formula: (Mn,Fe)SiO3 · H2O (?)
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Pyrochroite
Formula: Mn(OH)2
ⓘ Pyrophanite
Formula: Mn2+TiO3
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Rhodochrosite
Formula: MnCO3
ⓘ Rhodonite
Formula: CaMn3Mn[Si5O15]
ⓘ Shigaite (TL)
Formula: Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Type Locality:
ⓘ Sonolite
Formula: Mn2+9(SiO4)4(OH)2
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Tephroite
Formula: Mn2+2SiO4
ⓘ Welinite
Formula: Mn2+6(W6+,Mg)2(SiO4)2(O,OH)6

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘAlabandite2.CD.10MnS
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘManganosite4.AB.25MnO
ⓘGalaxite4.BB.05Mn2+Al2O4
ⓘJacobsite4.BB.05Mn2+Fe3+2O4
ⓘHausmannite4.BB.10Mn2+Mn3+2O4
ⓘPyrophanite4.CB.05Mn2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘCryptomelane4.DK.05aK(Mn4+7Mn3+)O16
ⓘPyrochroite4.FE.05Mn(OH)2
ⓘFeitknechtite4.FE.25Mn3+O(OH)
ⓘBirnessite4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Group 5 - Nitrates and Carbonates
ⓘRhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘShigaite (TL)7.DD.35Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Group 9 - Silicates
ⓘTephroite9.AC.05Mn2+2SiO4
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘAlleghanyite ?9.AF.45Mn2+5(SiO4)2(OH)2
ⓘSonolite9.AF.55Mn2+9(SiO4)4(OH)2
ⓘWelinite9.AF.75Mn2+6(W6+,Mg)2(SiO4)2(O,OH)6
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]
ⓘNeotocite9.ED.20(Mn,Fe)SiO3 · H2O (?)
ⓘBementite9.EE.05Mn7Si6O15(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Biotite
var. Manganophyllite'		-K(Fe,Mg,Mn)3AlSi3O10(OH)2
ⓘ'Mica Group'-
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ BementiteMn7Si6O15(OH)8
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Hⓘ FeitknechtiteMn3+O(OH)
Hⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Hⓘ Neotocite(Mn,Fe)SiO3 · H2O (?)
Hⓘ OpalSiO2 · nH2O
Hⓘ PyrochroiteMn(OH)2
Hⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Hⓘ SonoliteMn92+(SiO4)4(OH)2
Hⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6
CCarbon
Cⓘ RhodochrositeMnCO3
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ BaryteBaSO4
Oⓘ BementiteMn7Si6O15(OH)8
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Oⓘ CryptomelaneK(Mn74+Mn3+)O16
Oⓘ FeitknechtiteMn3+O(OH)
Oⓘ GalaxiteMn2+Al2O4
Oⓘ HausmanniteMn2+Mn23+O4
Oⓘ JacobsiteMn2+Fe23+O4
Oⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Oⓘ ManganositeMnO
Oⓘ Neotocite(Mn,Fe)SiO3 · H2O (?)
Oⓘ OpalSiO2 · nH2O
Oⓘ PyrochroiteMn(OH)2
Oⓘ PyrophaniteMn2+TiO3
Oⓘ QuartzSiO2
Oⓘ RhodochrositeMnCO3
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Oⓘ SonoliteMn92+(SiO4)4(OH)2
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ TephroiteMn22+SiO4
Oⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Naⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Mgⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ GalaxiteMn2+Al2O4
Alⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Alⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Alⓘ SpessartineMn32+Al2(SiO4)3
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ BementiteMn7Si6O15(OH)8
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Siⓘ Neotocite(Mn,Fe)SiO3 · H2O (?)
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
Siⓘ SonoliteMn92+(SiO4)4(OH)2
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ TephroiteMn22+SiO4
Siⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ AlabanditeMnS
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ MarcasiteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ CryptomelaneK(Mn74+Mn3+)O16
Kⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
CaCalcium
Caⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Caⓘ RhodoniteCaMn3Mn[Si5O15]
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ PyrophaniteMn2+TiO3
MnManganese
Mnⓘ AlabanditeMnS
Mnⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Mnⓘ BementiteMn7Si6O15(OH)8
Mnⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Mnⓘ CryptomelaneK(Mn74+Mn3+)O16
Mnⓘ FeitknechtiteMn3+O(OH)
Mnⓘ GalaxiteMn2+Al2O4
Mnⓘ HausmanniteMn2+Mn23+O4
Mnⓘ JacobsiteMn2+Fe23+O4
Mnⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Mnⓘ ManganositeMnO
Mnⓘ Neotocite(Mn,Fe)SiO3 · H2O (?)
Mnⓘ PyrochroiteMn(OH)2
Mnⓘ PyrophaniteMn2+TiO3
Mnⓘ RhodochrositeMnCO3
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
Mnⓘ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Mnⓘ SonoliteMn92+(SiO4)4(OH)2
Mnⓘ SpessartineMn32+Al2(SiO4)3
Mnⓘ TephroiteMn22+SiO4
Mnⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ JacobsiteMn2+Fe23+O4
Feⓘ Biotite var. ManganophylliteK(Fe,Mg,Mn)3AlSi3O10(OH)2
Feⓘ MarcasiteFeS2
Feⓘ Neotocite(Mn,Fe)SiO3 · H2O (?)
Feⓘ PyrrhotiteFe1-xS
AsArsenic
Asⓘ ArsenopyriteFeAsS
BaBarium
Baⓘ BaryteBaSO4
WTungsten
Wⓘ WeliniteMn62+(W6+,Mg)2(SiO4)2(O,OH)6

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Eurasian Plate
Japan

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

Peacor, D.R., Dunn, P.J., Kato, A., Wicks, F.J. (1985): Shigaite, a new manganese aluminum sulfate mineral from the Ioi Mine, Shiga, Japan. Neues Jahrbuch für Mineralogie, Monatshefte Jg. 1985(10), 453-457. Abstracted in: American Mineralogist (1986): 71: 1546.
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