TrekGEO > Mineral Trail > Kyushu region > Nagasaki pref. > Mount Bandake

Japanese page

Mount Bandake

Ikitsuki village, Hirado city, Nagasaki pref., Japan


Low-temperature zeolite facies metamorphic rocks

Hydrated minerals in vesicules of the middle Miocene (15 Ma) tholeiitic basalt erupted by the sea floor volcanic activity at the spreading axis of the South China Sea.

Mount Bandake

Outcrop of a pillow lava composed of tholeiitic basalt. The right side is the pillow margin, and the left side is the center of it. Vesicules of the pillow is filled with white zeolite. The white parts in this photograph is phyllipsite-Ca. Grayish green host around the pillow is tuff breccia.

Reported Minerals

  • Lévyne(Levyne)
  • Phyllipsite-Ca
  • Cowlesite
  • Erionite
  • Chabazite
  • Quartz
  • Chalcedony

Mineral Assemblages

  • Lévyne(Levyne) - Erionite
  • Phyllipsite-Ca - Chabazite - Cowlesite
Copyright (c) 2013 NariNari, All Rights Reserved.