TrekGEO > Mineral Trail > Koshinetsu region > Nagano pref. > Apophyllite-(KF)

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Lake Sayama

Maeyama, Ueda city, Nagano pref., Japan


Field of view: 10 mm. Crystals of apophyllite-(KF). The cubic crystals are apophyllite-(KF). The surrounding host is andesite.

Recovered from a vesicule of an andesitic pillow lava.

Apophyllite from this location was described in 1896.

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