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Karuizawa mine, Yanaizu Town, Kawanuma District, Fukushima Prefecture, Japani
| Regional Level Types | |
|---|---|
| Karuizawa mine | Mine |
| Yanaizu Town | Town |
| Kawanuma District | District |
| Fukushima Prefecture | Prefecture |
| Japan | Country |
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Latitude & Longitude (WGS84):
37° 28' 29'' North , 139° 44' 27'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kitakata | 37,140 (2017) | 22.4km |
| Inawashiro | 17,413 (2017) | 34.7km |
| Yonezawa | 94,486 (2017) | 58.6km |
| Shibata | 80,793 (2017) | 63.8km |
Other/historical names associated with this locality:
Bonten; Ginsei
Other Languages:
Japanese:
軽井沢銀山, 柳津町, 河沼郡, 福島県, 日本
Closed silver mine, found in 1558, closed in 1897 because of deterioration of profitability.
Max 4ton of silver was yielded in 1893, ranked as 6th silver mine in Japan in that time.
Heritage of modernization in Fukushima Prefecture.
Hydrothermal network.
Bonten deposit which is main ore bodies in the mine has been mined at the Tsudo (0m), Chugiri (+12m), +30m, +40 m, +60m and +90m levels. It is composed mainly. of the stock work and vein developed in the fracture zone, 350m in length, 120m in width and 250m in depth, at the southwestern portion of the Ginzan rhyolite altered hydrothermally. The ore body, 100m long, 40m wide and 60m deep in scale, showing network develops in the northwestern part of mineralization zone.
Ginsei deposit: It is situated at about 400 m east of the Bonten deposit and also occurs in the Ginzan rhyolite. It mainly consists of a ore body of network containing 200 g/t Ag, and has a scale of 50 m in length, 50 m in width and 50 m in depth.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
14 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 DiagramDetailed Mineral List:
| ⓘ Acanthite Formula: Ag2S |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ Bournonite Formula: PbCuSbS3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' |
| ⓘ Galena Formula: PbS |
| ⓘ 'K Feldspar' |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Native Silver Formula: Ag |
| ⓘ Pearceite Formula: [Ag6As2S7][Ag9CuS4] |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Polybasite Formula: [Ag6Sb2S7][Ag9CuS4] |
| ⓘ 'Polybasite-Tac' Formula: [Ag6Sb2S7][Ag9CuS4] |
| ⓘ Proustite Formula: Ag3AsS3 |
| ⓘ Pyrargyrite Formula: Ag3SbS3 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ 'Tennantite Subgroup' Formula: Cu6(Cu4C2+2)As4S12S |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
| ⓘ 'Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite' Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Proustite | 2.GA.05 | Ag3AsS3 |
| ⓘ | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| ⓘ | Bournonite | 2.GA.50 | PbCuSbS3 |
| ⓘ | 'Polybasite-Tac' | 2.GB. | [Ag6Sb2S7][Ag9CuS4] |
| ⓘ | 'Tennantite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)As4S12S |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| ⓘ | 'var. Silver-bearing Tetrahedrite' | 2.GB.05 | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| ⓘ | Pearceite | 2.GB.15 | [Ag6As2S7][Ag9CuS4] |
| ⓘ | Polybasite | 2.GB.15 | [Ag6Sb2S7][Ag9CuS4] |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'K Feldspar' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | Oxygen | |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Polybasite-Tac | [Ag6Sb2S7][Ag9CuS4] |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Bournonite | PbCuSbS3 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| S | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| S | ⓘ Proustite | Ag3AsS3 |
| S | ⓘ Pyrargyrite | Ag3SbS3 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| S | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| Cu | Copper | |
| Cu | ⓘ Polybasite-Tac | [Ag6Sb2S7][Ag9CuS4] |
| Cu | ⓘ Bournonite | PbCuSbS3 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| Cu | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Cu | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Cu | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Zn | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| As | Arsenic | |
| As | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| As | ⓘ Proustite | Ag3AsS3 |
| As | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Polybasite-Tac | [Ag6Sb2S7][Ag9CuS4] |
| Ag | ⓘ Pearceite | [Ag6As2S7][Ag9CuS4] |
| Ag | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Ag | ⓘ Proustite | Ag3AsS3 |
| Ag | ⓘ Pyrargyrite | Ag3SbS3 |
| Ag | ⓘ Native Silver | Ag |
| Ag | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| Sb | Antimony | |
| Sb | ⓘ Polybasite-Tac | [Ag6Sb2S7][Ag9CuS4] |
| Sb | ⓘ Bournonite | PbCuSbS3 |
| Sb | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Sb | ⓘ Pyrargyrite | Ag3SbS3 |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | ⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Bournonite | PbCuSbS3 |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian Plate
- North Japan ArcVolcanic Arc
Japan
- Honshu IslandIsland
Okhotsk PlateTectonic Plate
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Karuizawa mine, Yanaizu Town, Kawanuma District, Fukushima Prefecture, Japan