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

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Nakatsugawa city, Gifu pref., Japan

This locality is closed to collectors.


Field of view: 50 mm. Euhedral crystals of orthoclase. The opaque white prisms are orthoclase. The translucent gray parts are quartz. The brown parts are thin crusts of limonite.

Recovered from a pocket of a Topaz-NYF pegmatite associated with S-type (Ilmenite-series) granite. Formed in the Late Cretaceous (67 Ma).

Orthoclase from this location was described in 1895.

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