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Nebazawa mine, Katashina, Gunma, Japani
Regional Level Types
Nebazawa mineMine
Katashina- not defined -
GunmaPrefecture
JapanCountry

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Latitude & Longitude (WGS84): 36° 52' 15'' North , 139° 19' 20'' East
Latitude & Longitude (decimal): 36.87083,139.32222
GeoHash:G#: xne1f25k5
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate


A gold and silver mine, started in 1961 and closed in 1982.

Regions containing this locality

Honshu Island, Japan

Island - 1,361 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Econ Geol (1985) 80:1415-1424
Chalcopyrite
Formula: CuFeS2
Reference: Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
'Electrum'
Formula: (Au, Ag)
Reference: Econ Geol (1985) 80:1415-1424
Gold
Formula: Au
Reference: Econ Geol (1985) 80:1415-1424
Polybasite
Formula: [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Reference: Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
Pyrite
Formula: FeS2
Reference: Econ Geol (1985) 80:1415-1424
Sphalerite
Formula: ZnS
Reference: Nakayama, E. (1986): Chemical composition of sphalerite from the Nebazawa gold-silver mine, Gunma Prefecture, and its bearing on the evolution of ore fluid. Kozan Chishitsu 36, 523-533; Econ Geol (1985) 80:1415-1424

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Electrum'1.AA.05(Au, Ag)
'Gold'1.AA.05Au
Group 2 - Sulphides and Sulfosalts
'Acanthite'2.BA.35Ag2S
'Chalcopyrite'2.CB.10aCuFeS2
'Polybasite'2.GB.15[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø > 4
Polybasite3.1.7.2[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Unclassified Minerals, Rocks, etc.
'Electrum'-(Au, Ag)

List of minerals for each chemical element

SSulfur
S AcanthiteAg2S
S ChalcopyriteCuFeS2
S Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
S PyriteFeS2
S SphaleriteZnS
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
ZnZinc
Zn SphaleriteZnS
AsArsenic
As Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
AgSilver
Ag AcanthiteAg2S
Ag Electrum(Au, Ag)
Ag Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
SbAntimony
Sb Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
AuGold
Au Electrum(Au, Ag)
Au GoldAu

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mesozoic - Late Paleozoic
66 - 358.9 Ma



ID: 3187540
Paleozoic-Mesozoic sedimentary rocks

Age: Phanerozoic (66 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Nakayama, E. (1986): Chemical composition of sphalerite from the Nebazawa gold-silver mine, Gunma Prefecture, and its bearing on the evolution of ore fluid. Kozan Chishitsu 36, 523-533.
- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.


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