Okumanza Hot Spring, Gunma Prefecture, Kanto Region, Honshu Island, Japan

Minamiite
Okumanza Hot Spring, Gunma Prefecture, Kanto Region, Honshu Island, Japan

Photo: jm.CLAUDE

Latitude: 36°37'40"N
Longitude: 138°31'30"E

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

References

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

Mineral List

Alunite
Crandallite
Huangite

Minamiite (TL)
Natroalunite
Opal

Pyrite
Quartz
Rutile

Sulphur
Woodhouseite

11 entries listed. 10 valid minerals. 1 type locality (other).

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