TrekGEO > Mineral Trail > Tohoku region > Fukushima pref. > Ludwigite

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Hayama Mine

Kawamata city, Date county, Fukushima pref., Japan


Field of view: 5 mm. Ludwigite associated with forsterite. The veins of black fibers are ludwigite. The surrounding grayish-green host is massive aggregate of granular forsterite.

Recovered from a ludwigite vein in peridotite subjected to contact metamorphism by S-type (Ilmenite-series) granodiorite. Formed in the Late Cretaceous (100 Ma).

Ludwigite from this location was described in 1952.

Other localities

  • Hayama Mine (Metamorphosed peridotite, Fibrous)
  • Kurotani (Metamorphosed peridotite, Fibrous)
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