TrekGEO > Mineral Trail > Chugoku region > Shimane pref. > Wolframite

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Komaki Mine

Yokota, Oku-Izumo city, Nita county, Shimane pref., Japan

IMA approved name

Ferberite or Hübnerite

Source for Tungsten


Field of view: 50 mm. Wolframite associated with molybdenite. The tabular black crystals at the center and at the lower right are wolframite. The platy silver-white parts with a metallic luster at the top and at the right are molybdenite. The translucent white host with a vitreous luster is gangue quartz.

Recovered from a quartz vein in a pneumatolytic deposit in I-type (Magnetite-series) granite. Formed in the early Paleocene (65 Ma).

Molybdenite from this location was described in 1957.

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