TrekGEO > Mineral Trail > Koshinetsu region > Nagano pref. > Andesine

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Andesine

Mount Tokko

Maeyama, Ueda city, Nagano pref., Japan

This locality is closed to collecting.

IMA approved name

Albite var. andesine

Andesine

Length of the crystal: 3 mm. Dispatched twins of andesine. The tabular white crystals are andesine.

Recovered as dispatched crystals from phenocrysts of dacite tuff.

The dacite tuffa is a member Hosoonotaki Volcanics Member.

These crystals had been used as a charm. The first andesine from Japan was reported from this location in 1895.

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