Laumontite
Iwamoto, Ogitsu village, Hitachi city, Ibaraki pref., Japan
Field of view: 10 mm. A vein of laumontite. The white parts exhibiting perfect cleavage are laumontite on the surface parallel to the laumontite vein. The grayish-green basement is chlorite of greenschist.
Recovered from a laumontite vein in greenschist formed by medium-pressure metamorphism.
Laumontite from this location was described in 2008.
Other localities
- Myoho Mine (Sediment-hosted Cu, Prismatic)
- Nakayashiki (PrP facies, Radial)
- Chiyabayama (PrP facies, Prismatic)
- Heguri (PrP facies, Prismatic)
- Obora Path (Hyaloclastite, Prismatic)
- Takarayama Mine (GS facies, Vein)
- Nishizawa Mine (Hydrothermal Au-Ag, Prismatic)