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Okumanza Hot Spring, Gunma, Japani
Regional Level Types
Okumanza Hot SpringSpring
GunmaPrefecture
JapanCountry

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Key
Lock Map
Latitude & Longitude (WGS84): 36° 37' 40'' North , 138° 31' 30'' East
Latitude & Longitude (decimal): 36.62778,138.52500
GeoHash:G#: xnd825yu6
Locality type:Spring
Köppen climate type:Dfb : Warm-summer humid continental climate


A 2-pyroxene andesite, highly altered by sulphur-rich hot spring water.

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


10 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: Am Min 67:114-119; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Reference: Matsubara, S. et al (1998) Mineralogical Journal, 20, 1-8.; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Huangite
Formula: Ca0.5Al3(SO4)2(OH)6
Reference: Matsubara et al (1998) Mineralogical Journal, 20, 1-8; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Natroalunite
Formula: NaAl3(SO4)2(OH)6
Reference: Matsubara et al (1998) Mineralogical Journal, 20, 1-8; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
'Natroalunite-2c' (FRL)
Formula: (Na,Ca0.5,K)Al3(SO4)2(OH)6
Type Locality:
Reference: Amer.Min.(1982) 67, 114-119; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Opal
Formula: SiO2 · nH2O
Reference: Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Pyrite
Formula: FeS2
Reference: Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Quartz
Formula: SiO2
Reference: Am Min 67:114-119; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Rutile
Formula: TiO2
Reference: Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Sulphur
Formula: S8
Reference: Alfredo Petrov collection; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8
Woodhouseite
Formula: CaAl3(PO4)(SO4)(OH)6
Reference: Aoki (1985) Sanko-Gakkai Kou'en-Youshi, 16; Matsubara et al (1998) Mineralogical Journal, 20, 1-8.; Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Sulphur'1.CC.05S8
Group 2 - Sulphides and Sulfosalts
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Opal'4.DA.10SiO2 · nH2O
'Quartz'4.DA.05SiO2
'Rutile'4.DB.05TiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Alunite'7.BC.10KAl3(SO4)2(OH)6
'Huangite'7.BC.10Ca0.5Al3(SO4)2(OH)6
'Natroalunite'7.BC.10NaAl3(SO4)2(OH)6
'Natroalunite-2c' (TL)7.BC.10(Na,Ca0.5,K)Al3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
'Crandallite'8.BL.10CaAl3(PO4)(PO3OH)(OH)6
'Woodhouseite'8.BL.05CaAl3(PO4)(SO4)(OH)6

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Huangite30.2.4.8Ca0.5Al3(SO4)2(OH)6
'Natroalunite-2c' (FRL)30.2.4.5(Na,Ca0.5,K)Al3(SO4)2(OH)6
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Crandallite42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
Group 43 - COMPOUND PHOSPHATES, ETC.
Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Woodhouseite43.4.1.8CaAl3(PO4)(SO4)(OH)6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
Natroalunite-NaAl3(SO4)2(OH)6

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H HuangiteCa0.5Al3(SO4)2(OH)6
H NatroaluniteNaAl3(SO4)2(OH)6
H Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
H OpalSiO2 · nH2O
H WoodhouseiteCaAl3(PO4)(SO4)(OH)6
OOxygen
O AluniteKAl3(SO4)2(OH)6
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O HuangiteCa0.5Al3(SO4)2(OH)6
O NatroaluniteNaAl3(SO4)2(OH)6
O Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
O OpalSiO2 · nH2O
O QuartzSiO2
O RutileTiO2
O WoodhouseiteCaAl3(PO4)(SO4)(OH)6
NaSodium
Na NatroaluniteNaAl3(SO4)2(OH)6
Na Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al HuangiteCa0.5Al3(SO4)2(OH)6
Al NatroaluniteNaAl3(SO4)2(OH)6
Al Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
Al WoodhouseiteCaAl3(PO4)(SO4)(OH)6
SiSilicon
Si OpalSiO2 · nH2O
Si QuartzSiO2
PPhosphorus
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P WoodhouseiteCaAl3(PO4)(SO4)(OH)6
SSulfur
S AluniteKAl3(SO4)2(OH)6
S HuangiteCa0.5Al3(SO4)2(OH)6
S NatroaluniteNaAl3(SO4)2(OH)6
S Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
S PyriteFeS2
S SulphurS8
S WoodhouseiteCaAl3(PO4)(SO4)(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
K Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
CaCalcium
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Ca HuangiteCa0.5Al3(SO4)2(OH)6
Ca Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
Ca WoodhouseiteCaAl3(PO4)(SO4)(OH)6
TiTitanium
Ti RutileTiO2
FeIron
Fe PyriteFeS2

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

Holocene - Cenozoic
0 - 66 Ma



ID: 3185246
Cenozoic volcanic rocks

Age: Cenozoic (0 - 66 Ma)

Lithology: Volcanic 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

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Satoshi Matsubara et al (1998) Huangite from Okumanza, Gunma Prefecture, Japan. Mineralogical Journal Vol. 20 (1998) , No. 1 pp 1-8


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