4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Yuno-Taki waterfall, Me-akan volcano, Akan National Park, Kushiro Province, Hokkaido Island, Japan
is a rare hydrous manganese oxide mineral.
It is an unusual mineral in that it must be kept wet.
If allowed to become dry it dehydrates to the mineral
Birnessite; therefore it needs to be stored in water. Buserite
can be found as smooth dark brown spherical nodules.
One source is a flooded area of the Oppu Mine, Aomori,
Honshu Island, Japan.
Buserite has been found in stream beds, hot spring deposits
and in rhodochrosite mine wastewater; also as deep sea manganese nodules.
Buserite was first described by R. Giovanoli, E. Stahli, and
W. Feitnecht in
1970 from specimens found at the Yuno-Taki waterfall,
Me-akan volcano, Akan National Park, Kushiro Province, Hokkaido Island, Japan.
after the Bernese chemist Prof. Dr. W. Buser who had
identified the phase in a manganese nodule. The name
is commonly used by geologists when referring to deep-sea
for Buserite: the type locality at the Yuno-Taki waterfall, Me-akan volcano, Akan National Park, Kushiro Province, Hokkaido Island, Japan.
Also in Japan at the Oppu Mine, Aomori, Honshu Island.
In Austria at the Bürgergilde marble
quarries, Olsa, Friesach - Hüttenberg area, Carinthia.
In Korea at the Janggun and Dongnam Mines. In Moldova
at the Emil Racovita Cave (Zoluska Cave), Criva, Edinet.
In the Ukraine on the Kerch Peninsula, Crimea Peninsula,
Crimea Oblast'. In the USA at Pinal Creek, Globe Placers,
Globe Hills District, Globe-Miami District, Gila County,