TrekGEO > Mineral Trail > Kanto region > Kanagawa pref. > Augite

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Yamakita city, Ashigara-Kami county, Kanagawa pref., Japan


Field of view: 20 mm. An augite phenocryst. The black crystal is augite. The surrounding host is andesite.

Recovered from an andesite dike intruded in trough-fill sediments.

Augite from this location was described in 1971 as pyroxene and in 1972 as augite.

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