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Shohwa mine (Showa mine), Kiryu City, Gunma Prefecture, Japan i
Regional Level Types
Shohwa mine (Showa mine) Mine
Kiryu City City
Gunma Prefecture Prefecture
Japan Country

Regional Level Types
Shohwa mine (Showa mine)	Mine
Kiryu City	City
Gunma Prefecture	Prefecture
Japan	Country

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Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Entrance of mining tunnel

Shohwa mine, Kiryu City, Gunma Prefecture, Japan

Latitude & Longitude (WGS84):

36° 33' 9'' North , 139° 18' 31'' East

Latitude & Longitude (decimal):

G#: xn7pfn1x1

Type:

Köppen climate type:

Dfb : Warm-summer humid continental climate

Nearest Settlements:

Place	Population	Distance
Ōmamachō-ōmama	21,286 (2017)	13.8km
Kiryū	110,219 (2017)	17.1km
Numata	45,526 (2017)	24.8km
Maebashi	282,711 (2017)	26.3km
Ashikaga	159,671 (2017)	27.5km

Mindat Locality ID:

166554

Long-form identifier:

1:2:166554:6

GUID (UUID V4):

f6e45379-cd7c-4e28-b3b3-2e527acb7d14

Name(s) in local language(s):

昭和鉱山, 群馬県桐生市

Manganese deposit in Permian metasedimentary chert.

There are following three major deposits;
- Sawairi deposit: 3km (1.8miles) NNE from Hanawa station.
- Kotani deposit: 2.7km (1.7miles) NW from Hanawa station.
- Okuyama deposit: 5.5km (3.4miles) North from Hanawa station
(very difficult to approach).

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.

ⓘ Manganese

Mineral List

17 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

ⓘ Chert

Detailed Mineral List:

ⓘ Alabandite

Formula: MnS

Reference: Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252. FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Alleghanyite

Formula: Mn²⁺₅(SiO₄)₂(OH)₂

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Baryte

Formula: BaSO₄

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Bementite

Formula: Mn₇Si₆O₁₅(OH)₈

ⓘ Breithauptite

Formula: NiSb

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Galaxite

Formula: Mn²⁺Al₂O₄

Reference: 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97. FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Hausmannite

Formula: Mn²⁺Mn³⁺₂O₄

ⓘ Jacobsite

Formula: Mn²⁺Fe³⁺₂O₄

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Manganosite

Formula: MnO

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Millerite

Formula: NiS

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Pyrite

Formula: FeS₂

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Pyrophanite

Formula: Mn²⁺TiO₃

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Pyroxmangite

Formula: Mn²⁺SiO₃

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Rhodochrosite

Formula: MnCO₃

Reference: Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.; 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97. FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Spessartine

Formula: Mn²⁺₃Al₂(SiO₄)₃

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Tephroite

Formula: Mn²⁺₂SiO₄

Reference: FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

ⓘ Wiserite

Formula: (Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl

Reference: 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Alabandite	2.CD.10	MnS
ⓘ	Breithauptite	2.CC.05	NiSb
ⓘ	Millerite	2.CC.20	NiS
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Galaxite	4.BB.05	Mn²⁺Al₂O₄
ⓘ	Hausmannite	4.BB.10	Mn²⁺Mn³⁺₂O₄
ⓘ	Jacobsite	4.BB.05	Mn²⁺Fe³⁺₂O₄
ⓘ	Manganosite	4.AB.25	MnO
ⓘ	Pyrophanite	4.CB.05	Mn²⁺TiO₃
Group 5 - Nitrates and Carbonates
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
Group 6 - Borates
ⓘ	Wiserite	6.BA.20	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 9 - Silicates
ⓘ	Alleghanyite	9.AF.45	Mn²⁺₅(SiO₄)₂(OH)₂
ⓘ	Bementite	9.EE.05	Mn₇Si₆O₁₅(OH)₈
ⓘ	Pyroxmangite	9.DO.05	Mn²⁺SiO₃
ⓘ	Spessartine	9.AD.25	Mn²⁺₃Al₂(SiO₄)₃
ⓘ	Tephroite	9.AC.05	Mn²⁺₂SiO₄

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
H	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
H	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
B	Boron
B	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
C	Carbon
C	ⓘ Rhodochrosite	MnCO₃
O	Oxygen
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
O	ⓘ Hausmannite	Mn²⁺Mn₂³⁺O₄
O	ⓘ Galaxite	Mn²⁺Al₂O₄
O	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
O	ⓘ Tephroite	Mn₂²⁺SiO₄
O	ⓘ Pyroxmangite	Mn²⁺SiO₃
O	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
O	ⓘ Pyrophanite	Mn²⁺TiO₃
O	ⓘ Manganosite	MnO
O	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
O	ⓘ Baryte	BaSO₄
O	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
Mg	Magnesium
Mg	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
Al	Aluminium
Al	ⓘ Galaxite	Mn²⁺Al₂O₄
Al	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	Silicon
Si	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
Si	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
Si	ⓘ Tephroite	Mn₂²⁺SiO₄
Si	ⓘ Pyroxmangite	Mn²⁺SiO₃
Si	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
S	Sulfur
S	ⓘ Alabandite	MnS
S	ⓘ Baryte	BaSO₄
S	ⓘ Pyrite	FeS₂
S	ⓘ Millerite	NiS
Cl	Chlorine
Cl	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
Ti	Titanium
Ti	ⓘ Pyrophanite	Mn²⁺TiO₃
Mn	Manganese
Mn	ⓘ Rhodochrosite	MnCO₃
Mn	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
Mn	ⓘ Hausmannite	Mn²⁺Mn₂³⁺O₄
Mn	ⓘ Alabandite	MnS
Mn	ⓘ Galaxite	Mn²⁺Al₂O₄
Mn	ⓘ Wiserite	(Mn²⁺,Mg)₁₄(B₂O₅)₄(OH)₈ · (Si,Mg)(O,OH)₄Cl
Mn	ⓘ Tephroite	Mn₂²⁺SiO₄
Mn	ⓘ Pyroxmangite	Mn²⁺SiO₃
Mn	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Mn	ⓘ Pyrophanite	Mn²⁺TiO₃
Mn	ⓘ Manganosite	MnO
Mn	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
Mn	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
Fe	Iron
Fe	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Ni	Nickel
Ni	ⓘ Millerite	NiS
Ni	ⓘ Breithauptite	NiSb
Sb	Antimony
Sb	ⓘ Breithauptite	NiSb
Ba	Barium
Ba	ⓘ Baryte	BaSO₄

References

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FUKUOKA, M., & HIROWATARI, F. (1977). Alabandite in the bedded manganese ore deposits in the Seta district, Gumma Prefecture. Mining Geology, 27(146), 401-414.

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