TrekGEO > Mineral Trail > Kanto region > Tochigi pref. > Sphalerite

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Manju Mine

Shimo-Terashima, Shioya city, Shioya county, Tochigi pref., Japan

Source for Zinc, Cadmium, and Sulfuric acid.


Field of view: 10 mm. Sphalerite in quartz. The yellowish-green to greenish-brown grains are sphalerite. The surrounding translucent white parts are gangue quartz.

Recovered from a quartz vein in a moderate-temperature hydrothermal deposit associated with a rhyolite dike in welded tuff. Formed in the middle Miocene (15 Ma).

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