Almandine
Kasumigaura city, Ibaraki pref., Japan
This locality is in a park.
Field of view: 130 mm. Almandine crystals in pegmatite. Red grains approximately 1 mm in diameter at the right of the coin are almandine. Opaque white parta surrounging almandine crystals are feldspar, and translucent gray parts are quartz. Micaceous silver crystals are muscovite.
Recovered from a beryl-columbite-phosphate subtype rare-element pegmatite associated with S-type (Ilmenite-series) granite. Formed in the middle Paleocene (60 Ma).
Schorl from this location was described in 1977.
Other localities
- Yamano-o (Pegmatite, Trapezohedral)
- Yukiiri (Pegmatite, Trapezohedral)
- Komaki Mine (Pneumatolytic, Dodecahedral)
- Kita-Yoshimi (AM facies)
- Omi river (EA facies, Dodecahedral)
- Taguchi Mine (AM facies, Trapezohedral)
- Kawai Mine (Skarn, Trapezohedral)