Gunma Prefecture
Okumanza Hot Spring, Kusatsu, Agatsuma District, Gunma Prefecture, Japan
Okumanza Hot Spring
Kusatsu
Minerals
Alunite,Crandallite,Huangite,Natroalunite,Natroalunite-2c,Opal,Pyrite,Pyroxene Group,Quartz,Rutile,Sulphur,Woodhouseite
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Gunma Prefecture
Akagi volcano, Kiryu City, Gunma Prefecture, Japan
Anorthite,Augite,Fayalite-Forsterite Series,Hornblende Root Name Group,Hypersthene,Ilmenite,Imogolite,Limonite,Magnetite,Phlogopite,Plagioclase,Tridymite
Kiryu City
Gunma Prefecture
Gunma-tetsuzan (Gunma iron mine), Gunma Prefecture, Japan
Baryte,Jarosite,Limonite,Schwertmannite
Gunma
Gunma Prefecture
Hagidaira mine, Seta, Midori City, Gunma Prefecture, Japan
Manganese
Seta
Gunma Prefecture
Hanawa mine, Seta, Midori City, Gunma Prefecture, Japan
Manganese
Seta
Gunma Prefecture
Nakanoyama mine, Gunma Prefecture, Japan
Manganese
Gunma
Gunma Prefecture
Nebazawa mine, Katashina, Gunma Prefecture, Japan
Acanthite,Chalcopyrite,Gold,Electrum,Polybasite,Pyrite,Silver,Sphalerite
Katashina