TrekGEO > Mineral Trail > Tokai region > Gifu pref. > Halloysite

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Ichiyanagi Mine

Hirukawa, Nakatsugawa city, Gifu pref., Japan


Field of view: 10 mm. Halloysite associated with löllingite. The pink to white crusts are groups of earthy halloysite. The silver-white basement is löllingite.

Recovered from a löllingite vein of a pneumatolytic deposit formed near the boundary between welded tuff and S-type (Ilmenite-series) granite, members of a caldera complex.

Halloysite from this location was described in 1979.

Other localities

  • Ichiyanagi Mine (Pneumatolytic, Earthy)
  • Hirasawa (Pegmatite, after orthoclase)
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