TrekGEO > Mineral Trail > Kanto region > Saitama pref. > Galena

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Chichibu Mine

Otaki, Chichibu city, Saitama pref., Japan

Source for Lead


Field of view: 20 mm. Galena in an open space of rhodochrosite. The two dodecahedral dark gray crystals are galena. The surrounding pinkish-white host is rhodochrosite. The surface of galena crystals is covered with an unspecified very fine sulfide mineral.

Recovered from a moderately low-temperature hydrothermal deposit combined with skarn formed by contact metamorphism of I-type (magnetite-series) quartz diorite. Formed in the late Miocene (6 Ma).

Galena from this location was described in 1930.

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