Yaekouchi-mura, Shimoina District, Nagano Prefecture, Japan i
Regional Level Types
Yaekouchi-mura - not defined -
Shimoina District District
Nagano Prefecture Prefecture
Japan Country

Harada, Z., 1950. Datolite and Associated Minerals from the Iwata Copper Mine, Miyazaki Prefecture. Jour. Fac. Sci . Hokkaido Univ . Ser. IV, 7: 217-226

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

Locality: Tenryu Mine (Aokuzure), Yaekouchi-mura, Shimoina District, Nagano Prefecture, Japan

References:

Sadanaga, Ryoichi, Bunno, Michiaki (1974) The Wakabayashi Mineral Collection. Bulletin 7. The University Museum, The University of Tokyo

ⓘ Pyrrhotite

Formula: Fe_1-xS

Locality: Tenryu Mine (Aokuzure), Yaekouchi-mura, Shimoina District, Nagano Prefecture, Japan

References:

Sadanaga, Ryoichi, Bunno, Michiaki (1974) The Wakabayashi Mineral Collection. Bulletin 7. The University Museum, The University of Tokyo

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Cubanite	2.CB.55a	CuFe₂S₃
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	var. Danaite	2.EB.20	(Fe_0.90Co_0.10)AsS - (Fe_0.65Co_0.35)AsS

List of minerals for each chemical element

S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Cubanite	CuFe₂S₃
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Arsenopyrite var. Danaite	(Fe_0.90Co_0.10)AsS - (Fe_0.65Co_0.35)AsS
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Cubanite	CuFe₂S₃
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Arsenopyrite var. Danaite	(Fe_0.90Co_0.10)AsS - (Fe_0.65Co_0.35)AsS
Co	Cobalt
Co	ⓘ Arsenopyrite var. Danaite	(Fe_0.90Co_0.10)AsS - (Fe_0.65Co_0.35)AsS
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Cu	Copper
Cu	ⓘ Cubanite	CuFe₂S₃
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Arsenopyrite var. Danaite	(Fe_0.90Co_0.10)AsS - (Fe_0.65Co_0.35)AsS

Localities in this Region

Japan

Nagano Prefecture
- Shimoina District
  - Yaekouchi-mura
    - Tenryu Mine (Aokuzure)

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate

AsiaContinent

Eurasian Plate

Southern Japan ForearcAccretionary Complex

Japan

Honshu IslandIsland
Japanese Alps

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

Quick NavTop Mineral List Localities in Region Other Regions

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 14, 2026 08:01:00 Page updated: July 10, 2025 11:53:30

Go to top of page

Yaekouchi-mura, Shimoina District, Nagano Prefecture, JapaniRegional Level TypesYaekouchi-mura- not defined - Shimoina DistrictDistrict Nagano PrefecturePrefecture JapanCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Mineral List