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.