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Inakuraishi mine, Furubira, Shakotan peninsula, Shiribeshi Subprefecture, Hokkaidō, Japani
Regional Level Types
Inakuraishi mineMine
Furubira- not defined -
Shakotan peninsulaPeninsula
Shiribeshi SubprefectureSubprefecture
HokkaidōPrefecture
JapanCountry

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Key
Latitude & Longitude (WGS84):
43° 9' North , 140° 38' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Yoichi22,788 (2017)12.6km
Iwanai15,584 (2017)22.0km
Otaru143,792 (2017)30.2km
Niseko Town4,654 (2017)41.4km


Largest manganese deposit in Japan. (1944 production: 72,000 tons @ 27% Mn, mainly from rhodochrosite.) Mine now closed. En echelon hydrothermal rhodochrosite veins in Tertiary volcanosedimentary rocks. The largest vein had a strike of 900 meters, x 5m thick. Has produced many beautiful rhodochrosite specimens now widely distributed in collections.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


17 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Alabandite
Formula: MnS
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Arsenopyrite
Formula: FeAsS
Reference: Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
Baryte
Formula: BaSO4
Reference: Alfredo Petrov specimen
Calcite
Formula: CaCO3
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Chalcopyrite
Formula: CuFeS2
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
'Chlorite Group'
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Fizélyite ?
Formula: Ag5Pb14Sb21S48
Description: (probably uchucchacuaite)
Reference: Forrest Cureton specimens; Handbook of Mineralogy
Galena
Formula: PbS
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Ilesite
Formula: (Mn,Zn,Fe)SO4 · 4H2O
Reference: Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
Inesite
Formula: Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Reference: Janet Clifford (2011) Rocks & Minerals, 86, #3, 254-255.
Jôkokuite
Formula: MnSO4 · 5H2O
Reference: Matsueda et al (1980) Sanko-Gakkai Kou'en-Youshi, 68.
Pyrite
Formula: FeS2
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico; Makoto Watanabe (1983) Journal of Science of the Hiroshima University, Series C, 8, #1, 67-94.
Quartz
Formula: SiO2
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Ramdohrite
Formula: Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
Description: (= uchucchacuaite)
Reference: AMNH specimen
Rhodochrosite
Formula: MnCO3
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico
Sphalerite
Formula: ZnS
Reference: Katsu Kaneko (1956): Manganese Deposits of Japan; Symposium sobre Yacimientos de Manganeso, Mexico; Makoto Watanabe (1983) Journal of Science of the Hiroshima University, Series C, 8, #1, 67-94.
Stibnite
Formula: Sb2S3
Reference: Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13
Reference: AMNH specimen
Uchucchacuaite
Formula: AgMnPb3Sb5S12
Habit: prismatic crystals to 8mm long
Description: Previously sold on the systematic species market as "fizelyite", but multiple tests by powder XRD and analyses by microprobe confirm it as uchucchacuaite.
Reference: Komuro collection

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Alabandite2.CD.10MnS
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Fizélyite ?2.JB.40aAg5Pb14Sb21S48
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Ramdohrite ?2.JB.40aPb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
Sphalerite2.CB.05aZnS
Stibnite2.DB.05Sb2S3
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Uchucchacuaite2.JB.40aAgMnPb3Sb5S12
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Rhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Ilesite7.CB.15(Mn,Zn,Fe)SO4 · 4H2O
Jôkokuite7.CB.20MnSO4 · 5H2O
Group 9 - Silicates
Inesite9.DL.05Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
'Tetrahedrite'3.3.6.1Cu6(Cu4X2)Sb4S13
ø = 3
Fizélyite ?3.4.15.8Ag5Pb14Sb21S48
Ramdohrite ?3.4.15.6Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
Uchucchacuaite3.4.15.5AgMnPb3Sb5S12
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Ilesite29.6.6.3(Mn,Zn,Fe)SO4 · 4H2O
Jôkokuite29.6.7.4MnSO4 · 5H2O
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Ca-Na subgroup
Inesite66.3.3.1Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
H JôkokuiteMnSO4 · 5H2O
H InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
H Ilesite(Mn,Zn,Fe)SO4 · 4H2O
CCarbon
C RhodochrositeMnCO3
C CalciteCaCO3
OOxygen
O RhodochrositeMnCO3
O CalciteCaCO3
O QuartzSiO2
O JôkokuiteMnSO4 · 5H2O
O InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
O BaryteBaSO4
O Ilesite(Mn,Zn,Fe)SO4 · 4H2O
SiSilicon
Si QuartzSiO2
Si InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
SSulfur
S UchucchacuaiteAgMnPb3Sb5S12
S AlabanditeMnS
S AcanthiteAg2S
S ChalcopyriteCuFeS2
S GalenaPbS
S SphaleriteZnS
S PyriteFeS2
S JôkokuiteMnSO4 · 5H2O
S TetrahedriteCu6(Cu4X2)Sb4S13
S BaryteBaSO4
S Ilesite(Mn,Zn,Fe)SO4 · 4H2O
S ArsenopyriteFeAsS
S StibniteSb2S3
S FizélyiteAg5Pb14Sb21S48
S RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
CaCalcium
Ca CalciteCaCO3
Ca InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
MnManganese
Mn UchucchacuaiteAgMnPb3Sb5S12
Mn AlabanditeMnS
Mn RhodochrositeMnCO3
Mn JôkokuiteMnSO4 · 5H2O
Mn InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Mn Ilesite(Mn,Zn,Fe)SO4 · 4H2O
Mn RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe Ilesite(Mn,Zn,Fe)SO4 · 4H2O
Fe ArsenopyriteFeAsS
Fe RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
CuCopper
Cu ChalcopyriteCuFeS2
Cu TetrahedriteCu6(Cu4X2)Sb4S13
ZnZinc
Zn SphaleriteZnS
Zn Ilesite(Mn,Zn,Fe)SO4 · 4H2O
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag UchucchacuaiteAgMnPb3Sb5S12
Ag AcanthiteAg2S
Ag FizélyiteAg5Pb14Sb21S48
Ag RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
CdCadmium
Cd RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
InIndium
In RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
SbAntimony
Sb UchucchacuaiteAgMnPb3Sb5S12
Sb TetrahedriteCu6(Cu4X2)Sb4S13
Sb StibniteSb2S3
Sb FizélyiteAg5Pb14Sb21S48
Sb RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
BaBarium
Ba BaryteBaSO4
PbLead
Pb UchucchacuaiteAgMnPb3Sb5S12
Pb GalenaPbS
Pb FizélyiteAg5Pb14Sb21S48
Pb RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.

Other Regions, Features and Areas containing this locality

AsiaContinent
Okhotsk PlateTectonic Plate

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