TrekGEO > Mineral Trail > Kanto region > Ibaraki pref. > Beryl

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Kasumigaura city, Ibaraki pref., Japan

This locality is in a park.

Source for Beryllium


Length of the crystal: 10 mm. An opaque yellow prism of beryl. The prism is terminated by the (0001) face and pyramidal faces at the left.

Recovered from a beryl-columbite-phosphate subtype rare-element pegmatite associated with S-type (Ilmenite-series) granite. Formed in the middle Paleocene (60 Ma).

Beryl from this location was described in 1977.

Other localities

  • Yamano-o (NYF Pegmatite, Aquamarine)
  • Hirukawa (NYF Pegmatite, Prismatic)
  • Yukiiri (NYF Pegmatite, Prismatic)
  • Mount Myoken (LCT Pegmatite, Prismatic)
  • Mount Gyojya (Pneumatolytic, Prismatic)
  • Fukuoka Mine (Pneumatolytic, Prismatic)
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