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Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japani
Regional Level Types
Horokanai placerPlacer
Uryugawa- not defined -
Uryu DistrictDistrict
Kamikawa SubprefectureSubprefecture
Hokkaidō PrefecturePrefecture
JapanCountry

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PhotosMapsSearch
08827270017271926379808.jpg
Rutheniridosmine, etc.

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
02114060017272001988495.jpg
Rutheniridosmine

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
07775630017272002047419.jpg
Tulameenite, etc.

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
08827270017271926379808.jpg
Rutheniridosmine, etc.

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
02114060017272001988495.jpg
Rutheniridosmine

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
07775630017272002047419.jpg
Tulameenite, etc.

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
06740470017272002171856.jpg
Rutheniridosmine, etc.

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
02114060017272001988495.jpg
Rutheniridosmine

Horokanai placer, Uryugawa, Uryu District, Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
Latitude & Longitude:
43° North , 142° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~117km
GRN:
N30E74
Type:
Placer
Mindat Locality ID:
2185
Long-form identifier:
mindat:1:2:2185:5
GUID (UUID V4):
0


SEM/EDS of 9 grains, three of which were composites, yielded three mineral in addition to those already listed:

Osmium: Os.50Ir.30Ru.19,Fe.01; Os.53Ir.31Ru.13Fe.03; Os.50Ir.36Ru.14Fe.00.

Iridium: Ir.52Os.21Pt.12Ru.12Ni.03.

Unnamed "Pt2Fe" (Pt,Ir).67(Fe,Ni).33; (Pt,Cu).66(Fe,Ni).34.

Mineral species aready known from the locality included:

Tetraferroplatinum: Pt.49Fe.51

Isoferroplatinum: Pt.75Fe.25

Ruthenium: Ru.60((Os,Ir).40 which seems to yield Ru3(Os,Ir)2.

All analyses in mol percentages. Sample purchased form Excalibur Minerals, Peekskill, NY, in a glass capillary. R.C.Smith, II

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals. 2 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
ⓘ Isoferroplatinum
Formula: Pt3Fe
ⓘ Laurite ?
Formula: RuS2
References:
SEM-EDS by Ming YeIdentification: SEM-EDS
ⓘ Native Gold
Formula: Au
ⓘ Native Iridium
Formula: (Ir,Os,Ru)
ⓘ Native Osmium
Formula: (Os,Ir,Ru)
ⓘ Native Ruthenium (TL)
Formula: (Ru,Ir)
Type Locality:
ⓘ Osarsite
Formula: (Os,Ru)AsS
References:
SEM-EDS by Ming YeIdentification: SEM-EDS
ⓘ Rutheniridosmine (TL)
Formula: (Ir,Os,Ru)
Type Locality:
ⓘ Tetraferroplatinum
Formula: PtFe
ⓘ Tolovkite
Formula: IrSbS
References:
SEM-EDS by Ming YeIdentification: SEM-EDS
ⓘ Tulameenite
Formula: Pt2CuFe

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Osmium1.AF.05(Os,Ir,Ru)
ⓘRutheniridosmine (TL)1.AF.05(Ir,Os,Ru)
ⓘNative Ruthenium (TL)1.AF.05(Ru,Ir)
ⓘNative Iridium1.AF.10(Ir,Os,Ru)
ⓘIsoferroplatinum1.AG.35Pt3Fe
ⓘTetraferroplatinum1.AG.40PtFe
ⓘTulameenite1.AG.40Pt2CuFe
Group 2 - Sulphides and Sulfosalts
ⓘLaurite ?2.EB.05aRuS2
ⓘOsarsite2.EB.20(Os,Ru)AsS
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
ⓘTolovkite2.EB.25IrSbS

List of minerals for each chemical element

SSulfur
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ LauriteRuS2
Sⓘ Osarsite(Os,Ru)AsS
Sⓘ TolovkiteIrSbS
FeIron
Feⓘ IsoferroplatinumPt3Fe
Feⓘ TetraferroplatinumPtFe
Feⓘ TulameenitePt2CuFe
CuCopper
Cuⓘ TulameenitePt2CuFe
AsArsenic
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ Osarsite(Os,Ru)AsS
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ Native Iridium(Ir,Os,Ru)
Ruⓘ LauriteRuS2
Ruⓘ Osarsite(Os,Ru)AsS
Ruⓘ Native Osmium(Os,Ir,Ru)
Ruⓘ Rutheniridosmine(Ir,Os,Ru)
Ruⓘ Native Ruthenium(Ru,Ir)
RhRhodium
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
SbAntimony
Sbⓘ TolovkiteIrSbS
OsOsmium
Osⓘ Native Iridium(Ir,Os,Ru)
Osⓘ Osarsite(Os,Ru)AsS
Osⓘ Native Osmium(Os,Ir,Ru)
Osⓘ Rutheniridosmine(Ir,Os,Ru)
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Irⓘ Native Iridium(Ir,Os,Ru)
Irⓘ Native Osmium(Os,Ir,Ru)
Irⓘ Rutheniridosmine(Ir,Os,Ru)
Irⓘ Native Ruthenium(Ru,Ir)
Irⓘ TolovkiteIrSbS
PtPlatinum
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ IsoferroplatinumPt3Fe
Ptⓘ TetraferroplatinumPtFe
Ptⓘ TulameenitePt2CuFe
AuGold
Auⓘ Native GoldAu

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian Plate
Okhotsk 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

Urashima et al (1974) Mineralogical Journal, 7, 438-444.
Urashima et al (1976) Kagoshima Daigaku Rika Hokoku, 25, 165-171.
Urashima et al (1982) Reports of the Faculty of Science, Kagoshima University, 31, 129-140.
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