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Shohwa mine (Showa mine), Kiryuu City, Gunma, Japani
Regional Level Types
Shohwa mine (Showa mine)Mine
Kiryuu CityCity
GunmaPrefecture
JapanCountry

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Name(s) in local language(s):昭和鉱山, 群馬県 桐生市
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 36° North , 139° East (est.)
Margin of Error:~15km
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate


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).

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.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

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.
Bementite
Formula: Mn7Si6O15(OH)8
Reference: Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
'Chert'
Reference: Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
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.
Hausmannite
Formula: Mn2+Mn3+2O4
Reference: Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
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.
Wiserite
Formula: (Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
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.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Alabandite'2.CD.10MnS
Group 4 - Oxides and Hydroxides
'Galaxite'4.BB.05Mn2+Al2O4
'Hausmannite'4.BB.10Mn2+Mn3+2O4
Group 5 - Nitrates and Carbonates
'Rhodochrosite'5.AB.05MnCO3
Group 6 - Borates
'Wiserite'6.BA.20(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
Group 9 - Silicates
'Bementite'9.EE.05Mn7Si6O15(OH)8
Unclassified Minerals, Rocks, etc.
'Chert'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Group 7 - MULTIPLE OXIDES
AB2X4
Galaxite7.2.1.2Mn2+Al2O4
Hausmannite7.2.7.1Mn2+Mn3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
Group 27 - COMPOUND BORATES
Miscellaneous
Wiserite27.1.10.1(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
Group 78 - Unclassified Silicates
Bementite78.5.2.1Mn7Si6O15(OH)8
Unclassified Minerals, Rocks, etc.
'Chert'-

List of minerals for each chemical element

HHydrogen
H BementiteMn7Si6O15(OH)8
H Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
BBoron
B Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
CCarbon
C RhodochrositeMnCO3
OOxygen
O BementiteMn7Si6O15(OH)8
O GalaxiteMn2+Al2O4
O HausmanniteMn2+Mn23+O4
O RhodochrositeMnCO3
O Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
MgMagnesium
Mg Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
AlAluminium
Al GalaxiteMn2+Al2O4
SiSilicon
Si BementiteMn7Si6O15(OH)8
Si Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
SSulfur
S AlabanditeMnS
ClChlorine
Cl Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]
MnManganese
Mn AlabanditeMnS
Mn BementiteMn7Si6O15(OH)8
Mn GalaxiteMn2+Al2O4
Mn HausmanniteMn2+Mn23+O4
Mn RhodochrositeMnCO3
Mn Wiserite(Mn,Mg)14[Cl|(OH)8|(Si,Mg)(O,OH)4|(B2O5)4]

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