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Analcime

Heguri

Heguri-naka, Minami-Boso city, Chiba pref., Japan

Analcime

Field of view: 30 mm. Euhedral crystals of analcime. The transparent trapezohedral crystals are analcime. The grayish-green host is tuff.

Recovered from an open space of an analcime vein in tuff of an accretionary complex subjected to Prehnite-Pumpellyite facies metamorphism.

Analcime from this location was described in 1975.

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