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Mount Kinshozan

Kiroko, Ogawa city, Hiki county, Saitama pref., Japan

Occurrence

Titanium type rare-element pegmatite

Pegmatite in Kinshozan Quartz Diorite overlying Sambagawa Metamorphic Rocks through a low angle thrust fault.

Mount Kinsho

Outcrop of a pegmatite vein in Kinshozan Quartz Diorite. The white vein from right to left is pegmatite. It is composed of quartz and feldspar with minor amount of muscovite. The surrounding host is granodiolite, and there is no specific structures at the boundary between granodiolite and pegmatite. A small fault cuts the pegmatite at the left end of the photograph.

Reported Minerals

  • Muscovite
  • Almandine

Mineral Assemblages

  • Quartz - Feldspar - Muscovite - Almandine
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