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Minerals from Okayama prefecture
Prefectural Mineral: Uranium ore of Ningyo pass
Geology | Fossils | Hot springs
Minerals reported from Okayama prefecture
A list of minerals observed at 5 locations in Okayama prefecture, Chugoku region, Honshu island, Japan
Localities described below may be now closed to collecting by authorities or land owners.
Niimi city
Mount Osa
Osa-Kominami, Niimi city, Okayama pref.
- Zircon
Pink, Short prismatic
- Jadeite
White, Prismatic
- Stronalsite
White, Vein
- Grossular
White, Vein
- Nigrine (Fe-rich rutile)
Black
Ogibira Mine
Osa-Kominami, Niimi city, Okayama pref.
- Legrandite
Yellow, Prismatic
- Köttigite(Kottigite)
Bluish-white
- Hemimorphite
White
- Scorodite
Dark green
- Aurichalcite
Blue
- Hydrozincite
White, Earthy
- Brochantite
Green, Acicular
- Malachite
Green
- Aragonite
White
- Chabazite
White
- Hedenbergite
Green
Takase Mine
Shingou-Takase, Niimi city, Okayama pref.
- Uvarovite
Green, Dodecahedron
- Kaemmererite
Purple
- Magnesiochromite
Black
- Proto-anthophyllite
White
- Aragonite
White
- Talc
Green
- Unidentified
Yellowish-green, Platy
Komoto Mine
Kanaya, Niimi city, Okayama pref.
- Brochantite
Green, Acicular
- Malachite
Green
- Aurichalcite
Blue
- Tyrolite
Bluish-green
- Magnetite
Black
Ibara city
Hiyoshi Mine
Kitayama village, Ibara city, Okayama pref.
- Bayldonite
Green, Granular/Reniform
- Serpierite
Blue, Acicular
- Malachite
Green
- Azurite
Blue, Tabular
- Olivenite
Black
- Pyromorphite
Green, Prismatic
- Mimetite
Yellow
- Brochantite
Green, Acicular