Yamano-o
Yamao, Makabe village, Sakuragawa city, Ibaraki pref., Japan
This locality is closed to collecting.
Occurrence
Beryl-Columbite subtype rare-element pegmatite
Pegmatite deposit in fine biotite granite, the middle Paleocene (60 Ma) Kabasan Granite. The Kabasan Granite is S-type (Ilmenite-series) and is intruded in the Late Jurassic (150 Ma) Kasama Unit of the accretionary complex, the Yamizo Group. The Kasama Unit corresponds to the Yabuhara Unit of the Tamba-Mino-Ashio accretionary complex. Ages of sedimentary rocks were determined by radiolarians, and granite age by K-Ar radiometric dating.
Reported Minerals
Mineral Assemblages
- Quartz - Feldspar - Muscovite - Almandine
- Quartz - Feldspar - Beryl - Columbite
- Beryl - Bertrandite
Localities
- Yamano-o (Garnet)
Related Occurrences
- Pegmatite (Abyssal)
- Pegmatite (Muscovite)
- Pegmatite (Muscovite-Rare element)
- Pegmatite (Rare element, Allanite)
- Pegmatite (Rare element, Euxenite)
- Pegmatite (Rare element, Gadolinite)
- Pegmatite (Rare element, Titanium)
- Pegmatite (Rare element, Beryl)
- Pegmatite (Rare element, Phosphate)
- Pegmatite (Rare element, Spodumene)
- Pegmatite (Rare element, Petalite)
- Pegmatite (Rare element, Lepidolite)
- Pegmatite (Rare element, Elbaite)
- Pegmatite (Rare element, Amblygonite)
- Pegmatite (Rare element, Albite-Spodumene)
- Pegmatite (Rare element, Albite)
- Pegmatite (Miarolitic, REE)
- Pegmatite (Miarolitic, Li)
- Pegmatite (Gabbro)