Apophyllite
Nakadomari city, Kita-Tsugaru county, Aomori pref., Japan
Field of view: 40 mm. Bluish-green apophyllite crystals. The massive bluish-green parts are apophyllite, and those margin turns white. The surrounding white grains are apophyllite. The dark brown host is basalt, and holes are vesicules.
Recovered from vesicules of a pillow lava, a basalt lava erupted under the sea.
Other localities
- Lake Sayama (Andesite, Cubic)
- Shiraki (Rodingite, Granular)
- Heguri (Tuff, Massive)
- Nakadomari (Basalt, Granular)