Taguchi Mine
Yatsuhashi, Shitara city, Kita-Shitara county, Aichi pref., Japan
This locality is strictly closed to collecting.
Occurrence
Amphibolite facies bedded manganese deposit
Bedded manganese deposit in pelitic schist of Ryoke Metamorphic Rocks. The deposit is subjected to contact metamorphism by Late Cretaceous (85 Ma) Kiyosaki Granodiorite of Inagawa Granite. Pegmatite veins by Kiyosaki Granodiorite were intruded in the deposit. Approximately 2.5 km apart from Kiyosaki Granodiorite, the heat source. The Rb-Sr radiometric dating of Yoshimuraite-Rhodonite-Phlogopite ores indicates 71-80 Ma.
Pegmatite vein in pelitic schist of Ryoke Metamorphic Rocks near the deposit. The pegmatite vein is composed of white feldspar, clear gray quartz, and black biotite with minor amount of red almandine. The black host is sillimanite-bearing pelitic schist.
Reported Minerals
- Copper
- Graphite
- Alabandite
- Pyrrhotite
- Cobaltite
- Molybdenite
- Gersdorffite
- Chalcopyrite
- Galena
- Nickeline
- Pyrite
- Sphalerite
- Jacobsite
- Manganosite
- Pyrochroite
- Feitknechtite
- Hausmannite
- Pyrophanite
- Alleghanyite
- Cryptomelane
- Galaxite
- Hematite
- Manganite
- Uraninite
- Rhodochrosite
- Niahite?
- Barite
- Aragonite?
- Erythrite
- Apatite
- Spessartine
- Almandine
- Sonolite
- Tephroite
- Rhodonite
- Pyroxmangite
- Aegirine
- Clino-suenoite
- Richterite
- Yoshimuraite
- Phlogopite
- Shirozulite
- Haradaite
- Schorl
- Potassium feldspar
- Celsian?
- Kinoshitalite
- Welinite
- Neotocite
- Caryopilite("Bementite")
Mineral Assemblages
- Rhodonite - Pyrrhotite
- Rhodonite - Quartz - Molybdenite
- Rhodonite - Neotocite - Pyroxmangite
- Rhodonite - Sonolite
- Hausmannite - Jacobsite - Alleghanyite - Sonolite
- Rhodonite - Tephroite
- Quartz - Richterite - Yoshimuraite
- Rhodonite - Phlogopite - Quartz
- Rhodonite - Clino-suenoite
- Hausmannite - Rhodochrosite - Shirozulite
- Quartz - Feldspar - Biotite - Almandine - Schorl
- Rhodonite - Quartz - Cobaltite - Erythrite
Details of the mine
Taguchi mine includes the Urayama deposit, Kaiten deposit, and Eboshi deposit. These deposits were mined from 1949 to 1960's. Mined primary ore is approximately 20 million tons.
Localities
- Taguchi Mine (Ryoke metamorphic rocks)
- Takara Mine (Ryoke metamorphic rocks)
Related Occurrences
- Bedded Mn (Diagenesis)
- Bedded Mn (Low-T zeolite facies)
- Bedded Mn (High-T zeolite facies)
- Bedded Mn (Prehnite-Pumpellyite facies)
- Bedded Mn (Pumpellyite-Actinolite facies)
- Bedded Mn (Greenschist facies)
- Bedded Mn (Epidote-Amphibolite facies)
- Bedded Mn (Amphibolite facies)
- Bedded Mn (Albite-Epidote-hornfels facies)
- Bedded Mn (Hornblende-hornfels facies)
- Bedded Mn (Pyroxene-hornfels facies)