Fluorite
Hirukawa
Hirukawa, Nakatsugawa city, Gifu pref., Japan
This locality is closed to collectors.
Size of the crystal: 10 mm. A crystal of fluorite. The octahedral pale green crystal is fluorite. The black crystal at the left is black quartz, the white parts are orthoclase.
Recovered from a pocket of a Topaz-NYF pegmatite associated with S-type (Ilmenite-series) granite. Formed in the Late Cretaceous (67 Ma).
Fluorite from this location was described in 1895.
Size of crystal: 20 mm. A floater of fluorite. The fluorite is a cube-based crystal in clay of a pocket. It is transparent but a part of crystal is purple.
Other localities
- Hirukawa (Pegmatite, Octahedral)
- Hiraiwa Mine (Hydrothermal, Dodecahedral)
- Goka Mine (Hydrothermal, Massive)
- Takatori Mine (Pneumatolytic, Massive)
- Takane Mine (Pneumatolytic, Massive)
- Kamioka Mine (Pneumatolytic Skarn, Cubic)