Mordenite?
Ito city, Shizuoka pref., Japan
Field of view: 5 mm. Mordenite in a vesicule. The acicular white crystals are mordenite. The white grains on the basement are labradorite. The black grains are ilmenite.
Recovered from a vesicule of a basalt lava erupted from a monogenetic volcano in an island arc. Formed in the Late Pleistoene (0.1 Ma).
Other localities
- Yanda (Hyaloclastite, Acicular)
- Obora Path (Hyaloclastite, Acicular)
- Futo (Basalt, Acicular)
- Kusama Mine (Pyroclastics, Radial)
- Mount Hokidani (Basalt, Acicular)