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Ashio mine (Ashio copper mine), Ashio, Nikko City, Tochigi Prefecture, Japan i
Regional Level Types
Ashio mine (Ashio copper mine) Mine
Ashio Town (Former)
Nikko City City
Tochigi Prefecture Prefecture
Japan Country

Regional Level Types
Ashio mine (Ashio copper mine)	Mine
Ashio	Town (Former)
Nikko City	City
Tochigi Prefecture	Prefecture
Japan	Country

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View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

View of the Ashio copper mining area, ca. 1910.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Latitude & Longitude (WGS84):

36° 37' 59'' North , 139° 26' 22'' East

Latitude & Longitude (decimal):

Type:

Köppen climate type:

Dfb : Warm-summer humid continental climate

Nearest Settlements:

Place	Population	Distance
Nikkō	16,041 (2017)	20.4km
Imaichi	64,323 (2018)	23.6km
Ōmamachō-ōmama	21,286 (2017)	26.8km
Kiryū	110,219 (2017)	27.6km
Kanuma	94,903 (2017)	27.8km

Mindat Locality ID:

6800

Long-form identifier:

mindat:1:2:6800:3

GUID (UUID V4):

Name(s) in local language(s):

足尾銅山, 栃木県日光市足尾町

Historic copper mine discovered in 1610.
Old labels may use the obsolete locality name "Shimotsuke province".

Historical summary:
1610: Two farmers found copper vein in Bizen-tateyama.
1676: It was recorded 1300 to 1500 tons of copper ore were yielded per year.
1817: Temporary halt because of reduction in output.
1872: Owner changed from Tochigi Pref. to individual mine owner.
1877: After several times of owner change, Ichibei Furukawa (founder of Furukawa group) owned the mine.
1880: Eiichi Shibusawa, president of 1st national bank (Now, Mizuho bank), participated in the management of the mine.
From this period, water pollution was actualized due to increase of production.
1935: New dressing plant for collection from low quality ore.
1948: Full mechanization of beneficiation.
In spite of improvement of the efficiency of the beneficiation by state of the art technology, the production is gradually reduced...
1973: Closed.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Copper

Mineral List

ⓘ var. Chalcotrichite

ⓘ 'Tennantite Subgroup'

ⓘ 'Tetrahedrite Subgroup'

54 valid minerals.

Detailed Mineral List:

ⓘ Ajoite

Formula: (K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O

References:

Numao et al (2005) Chigaku Kenkyu, 53, 213-220.

ⓘ Arsenopyrite

Formula: FeAsS

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

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

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

ⓘ Bismoclite

Formula: BiOCl

References:

Ii & Hori (1992) Koubutsu-Gakkai Kou'en-Youshi, 159.

ⓘ Bismuthinite

Formula: Bi₂S₃

References:

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

ⓘ Bolivarite

Formula: Al₂(PO₄)(OH)₃ · 4-5H₂O

Description: in chalcopyrite ore

References:

Matsubara et al. (1986) Bulletin of the National Science Museum (Tokyo), 12, 35-39.

ⓘ Bornite

Formula: Cu₅FeS₄

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Calcite

Formula: CaCO₃

Description: "butterfly clacite twins, and other unusual habits"

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

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

ⓘ Canfieldite

Formula: Ag₈SnS₆

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Cannonite

Formula: Bi₂(SO₄)O(OH)₂

References:

Yamada and Terashima (2003) Suisyou, 16, 31-36.

ⓘ Cassiterite

Formula: SnO₂

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Chalcanthite

Formula: CuSO₄ · 5H₂O

References:

Petrov, Alfredo (n.d.) Personal Communication.

ⓘ Chalcoalumite

Formula: CuAl₄(SO₄)(OH)₁₂ · 3H₂O

References:

Matsubara and Miyawaki (2006) Catalogue of Japanese Minerals. (Tokai University Press)

ⓘ Chalcocite

Formula: Cu₂S

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Chalcophyllite

Formula: Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O

References:

Matsubara and Miyawaki (2006) Catalogue of Japanese Minerals. (Tokai University Press)

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

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

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Chamosite

Formula: (Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Cobaltkoritnigite

Formula: Co(AsO₃OH) · H₂O

References:

Okada et al (1994) Abstracts, IMA General Meeting, 1994, 307-308.

ⓘ Covellite

Formula: CuS

References:

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

ⓘ Cuprite

Formula: Cu₂O

References:

Kyoto University collection

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

ⓘ Cuprite var. Chalcotrichite

Formula: Cu₂O

References:

Kyoto University collection

ⓘ Djurleite

Formula: Cu₃₁S₁₆

References:

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

ⓘ Ferberite

Formula: FeWO₄

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

Habit: tabular

Colour: white

Fluorescence: fluorescent and phosphorescent

Description: stalactitic with hollow centers

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

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

ⓘ Fluorite

Formula: CaF₂

Habit: octahedral

Colour: green

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Galena

Formula: PbS

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

ⓘ Ikunolite

Formula: Bi₄S₃

References:

(n.d.) Knut Eldjarn collection.5mm xl.

ⓘ Koechlinite

Formula: Bi₂MoO₆

References:

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

ⓘ Laitakarite

Formula: Bi₄(Se,S)₃

References:

Petrov, Alfredo (n.d.) Personal Communication.

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

References:

Dana 6:A3:44

Dana 7:II:745.

ⓘ Ludlamite

Formula: Fe²⁺₃(PO₄)₂ · 4H₂O

References:

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

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

ⓘ Marcasite

Formula: FeS₂

References:

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

ⓘ Mawsonite

Formula: Cu₆Fe₂SnS₈

References:

Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Eds. (2016) Handbook of Mineralogy. https://www.handbookofmineralogy.org/

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Native Bismuth

Formula: Bi

References:

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

ⓘ Native Copper

Formula: Cu

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

ⓘ Native Gold

Formula: Au

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Native Silver

Formula: Ag

References:

Matsubara, S. (2003) Minerals in Japan, p. 10 (Field Best Encyclopedia, vol. 15)

ⓘ Opal

Formula: SiO₂ · nH₂O

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

ⓘ Opal var. Opal-AN

Formula: SiO₂ · nH₂O

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

ⓘ Pyrite

Formula: FeS₂

Habit: pyritohedral

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

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

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

✪ Pyrrhotite

Formula: Fe_1-xS

Description: "exceptionally fine pyrrhotite crystals and rosettes"

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

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

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Quartz

Formula: SiO₂

References:

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

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

ⓘ Quartz var. Amethyst

Formula: SiO₂

References:

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

ⓘ Rucklidgeite

Formula: PbBi₂Te₄

References:

Ii et al (1993) Koubutsu-Gakkai Kou'en-Youshi, 145.

ⓘ Scheelite

Formula: Ca(WO₄)

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Siderite

Formula: FeCO₃

References:

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

ⓘ Sphalerite

Formula: ZnS

Colour: black

References:

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens

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

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Stannite

Formula: Cu₂FeSnS₄

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

ⓘ Stannoidite

Formula: Cu⁺₆Cu²⁺₂(Fe²⁺,Zn)₃Sn₂S₁₂

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

ⓘ Stibnite

Formula: Sb₂S₃

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ 'Tennantite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)As₄S₁₂S

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

Shimizu, M., Shikazono, N. (1987) Stannoidite-bearing tin ore; mineralogy, texture and physicochemical environment of formation. The Canadian Mineralogist: 25(2): 229-236.

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ Vivianite

Formula: Fe²⁺Fe²⁺₂(PO₄)₂ · 8H₂O

References:

Dana 6:A3:44

Dana 7:II:745.

Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York.

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

ⓘ Wavellite

Formula: Al₃(PO₄)₂(OH)₃ · 5H₂O

Description: "fischerite"

References:

(n.d.) Dr Yohachiro Okamoto collection, Geological Survey of Japan.

ⓘ Wittichenite

Formula: Cu₃BiS₃

References:

Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.

ⓘ 'Wolframite Group'

References:

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

ⓘ Zavaritskite

Formula: (BiO)F

References:

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

Gallery:

FeAsSⓘ Arsenopyrite

Arsenopyrite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Arsenopyrite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Arsenopyrite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

CaCO₃ⓘ Calcite

Calcite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Calcite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Calcite, etc.

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Biⓘ Native Bismuth

Native Bismuth

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Native Bismuth

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Native Bismuth

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

FeS₂ⓘ Pyrite

Pyrite

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Pyrite

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

Pyrite

Ashio mine, Ashio, Nikko City, Tochigi Prefecture, Japan

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Native Silver	1.AA.05	Ag
ⓘ	Native Bismuth	1.CA.05	Bi
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Djurleite	2.BA.05	Cu₃₁S₁₆
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Canfieldite	2.BA.70	Ag₈SnS₆
ⓘ	Covellite	2.CA.05a	CuS
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Stannite	2.CB.15a	Cu₂FeSnS₄
ⓘ	Stannoidite	2.CB.15c	Cu⁺₆Cu²⁺₂(Fe²⁺,Zn)₃Sn₂S₁₂
ⓘ	Mawsonite	2.CB.20	Cu₆Fe₂SnS₈
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Bismuthinite	2.DB.05	Bi₂S₃
ⓘ	Stibnite	2.DB.05	Sb₂S₃
ⓘ	Ikunolite	2.DC.05	Bi₄S₃
ⓘ	Laitakarite	2.DC.05	Bi₄(Se,S)₃
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Wittichenite	2.GA.20	Cu₃BiS₃
ⓘ	'Tennantite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)As₄S₁₂S
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
ⓘ	Rucklidgeite	2.GC.40c	PbBi₂Te₄
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
ⓘ	Bismoclite	3.DC.25	BiOCl
ⓘ	Zavaritskite	3.DC.25	(BiO)F
Group 4 - Oxides and Hydroxides
ⓘ	Cuprite var. Chalcotrichite	4.AA.10	Cu₂O
ⓘ		4.AA.10	Cu₂O
ⓘ	Quartz var. Amethyst	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Opal var. Opal-AN	4.DA.10	SiO₂ · nH₂O
ⓘ		4.DA.10	SiO₂ · nH₂O
ⓘ	Cassiterite	4.DB.05	SnO₂
ⓘ	Ferberite	4.DB.30	FeWO₄
ⓘ	'Wolframite Group'	4.DB.30 va
ⓘ	Koechlinite	4.DE.15	Bi₂MoO₆
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Cannonite	7.BD.35	Bi₂(SO₄)O(OH)₂
ⓘ	Chalcanthite	7.CB.20	CuSO₄ · 5H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Chalcoalumite	7.DD.75	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
ⓘ	Scheelite	7.GA.05	Ca(WO₄)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
ⓘ	Cobaltkoritnigite	8.CB.20	Co(AsO₃OH) · H₂O
ⓘ	Ludlamite	8.CD.20	Fe²⁺₃(PO₄)₂ · 4H₂O
ⓘ	Vivianite	8.CE.40	Fe²⁺Fe²⁺₂(PO₄)₂ · 8H₂O
ⓘ	Wavellite	8.DC.50	Al₃(PO₄)₂(OH)₃ · 5H₂O
ⓘ	Bolivarite	8.DF.10	Al₂(PO₄)(OH)₃ · 4-5H₂O
ⓘ	Chalcophyllite	8.DF.30	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
Group 9 - Silicates
ⓘ	Ajoite	9.EA.70	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Chamosite	9.EC.55	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Bolivarite	Al₂(PO₄)(OH)₃ · 4-5H₂O
H	ⓘ Cannonite	Bi₂(SO₄)O(OH)₂
H	ⓘ Chalcanthite	CuSO₄ · 5H₂O
H	ⓘ Chalcoalumite	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
H	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
H	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
H	ⓘ Cobaltkoritnigite	Co(AsO₃OH) · H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Ludlamite	Fe₃²⁺(PO₄)₂ · 4H₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
H	ⓘ Wavellite	Al₃(PO₄)₂(OH)₃ · 5H₂O
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
O	ⓘ Quartz var. Amethyst	SiO₂
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Bismoclite	BiOCl
O	ⓘ Bolivarite	Al₂(PO₄)(OH)₃ · 4-5H₂O
O	ⓘ Calcite	CaCO₃
O	ⓘ Cannonite	Bi₂(SO₄)O(OH)₂
O	ⓘ Cassiterite	SnO₂
O	ⓘ Chalcanthite	CuSO₄ · 5H₂O
O	ⓘ Chalcoalumite	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
O	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
O	ⓘ Cuprite var. Chalcotrichite	Cu₂O
O	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
O	ⓘ Cobaltkoritnigite	Co(AsO₃OH) · H₂O
O	ⓘ Cuprite	Cu₂O
O	ⓘ Ferberite	FeWO₄
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
O	ⓘ Koechlinite	Bi₂MoO₆
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Ludlamite	Fe₃²⁺(PO₄)₂ · 4H₂O
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Quartz	SiO₂
O	ⓘ Scheelite	Ca(WO₄)
O	ⓘ Siderite	FeCO₃
O	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
O	ⓘ Wavellite	Al₃(PO₄)₂(OH)₃ · 5H₂O
O	ⓘ Zavaritskite	(BiO)F
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Fluorite	CaF₂
F	ⓘ Zavaritskite	(BiO)F
Na	Sodium
Na	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
Mg	Magnesium
Mg	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Al	Aluminium
Al	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
Al	ⓘ Bolivarite	Al₂(PO₄)(OH)₃ · 4-5H₂O
Al	ⓘ Chalcoalumite	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
Al	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Al	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Wavellite	Al₃(PO₄)₂(OH)₃ · 5H₂O
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
Si	ⓘ Quartz var. Amethyst	SiO₂
Si	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Si	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Bolivarite	Al₂(PO₄)(OH)₃ · 4-5H₂O
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	ⓘ Ludlamite	Fe₃²⁺(PO₄)₂ · 4H₂O
P	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
P	ⓘ Wavellite	Al₃(PO₄)₂(OH)₃ · 5H₂O
S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Bismuthinite	Bi₂S₃
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Canfieldite	Ag₈SnS₆
S	ⓘ Cannonite	Bi₂(SO₄)O(OH)₂
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcanthite	CuSO₄ · 5H₂O
S	ⓘ Chalcoalumite	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
S	ⓘ Covellite	CuS
S	ⓘ Djurleite	Cu₃₁S₁₆
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Ikunolite	Bi₄S₃
S	ⓘ Laitakarite	Bi₄(Se,S)₃
S	ⓘ Marcasite	FeS₂
S	ⓘ Mawsonite	Cu₆Fe₂SnS₈
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Stannite	Cu₂FeSnS₄
S	ⓘ Stannoidite	Cu₆⁺Cu₂²⁺(Fe²⁺,Zn)₃Sn₂S₁₂
S	ⓘ Stibnite	Sb₂S₃
S	ⓘ Tennantite Subgroup	Cu₆(Cu₄C₂²⁺)As₄S₁₂S
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
S	ⓘ Wittichenite	Cu₃BiS₃
Cl	Chlorine
Cl	ⓘ Bismoclite	BiOCl
K	Potassium
K	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Scheelite	Ca(WO₄)
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Fe	ⓘ Ferberite	FeWO₄
Fe	ⓘ Ludlamite	Fe₃²⁺(PO₄)₂ · 4H₂O
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Mawsonite	Cu₆Fe₂SnS₈
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Stannite	Cu₂FeSnS₄
Fe	ⓘ Stannoidite	Cu₆⁺Cu₂²⁺(Fe²⁺,Zn)₃Sn₂S₁₂
Fe	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
Co	Cobalt
Co	ⓘ Cobaltkoritnigite	Co(AsO₃OH) · H₂O
Cu	Copper
Cu	ⓘ Ajoite	(K,Na)Cu₇AlSi₉O₂₄(OH)₆ · 3H₂O
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcanthite	CuSO₄ · 5H₂O
Cu	ⓘ Chalcoalumite	CuAl₄(SO₄)(OH)₁₂ · 3H₂O
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Cuprite var. Chalcotrichite	Cu₂O
Cu	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
Cu	ⓘ Covellite	CuS
Cu	ⓘ Cuprite	Cu₂O
Cu	ⓘ Native Copper	Cu
Cu	ⓘ Djurleite	Cu₃₁S₁₆
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Mawsonite	Cu₆Fe₂SnS₈
Cu	ⓘ Stannite	Cu₂FeSnS₄
Cu	ⓘ Stannoidite	Cu₆⁺Cu₂²⁺(Fe²⁺,Zn)₃Sn₂S₁₂
Cu	ⓘ Tennantite Subgroup	Cu₆(Cu₄C₂²⁺)As₄S₁₂S
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Cu	ⓘ Wittichenite	Cu₃BiS₃
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Zn	ⓘ Stannoidite	Cu₆⁺Cu₂²⁺(Fe²⁺,Zn)₃Sn₂S₁₂
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ · 36H₂O
As	ⓘ Cobaltkoritnigite	Co(AsO₃OH) · H₂O
As	ⓘ Tennantite Subgroup	Cu₆(Cu₄C₂²⁺)As₄S₁₂S
Se	Selenium
Se	ⓘ Laitakarite	Bi₄(Se,S)₃
Mo	Molybdenum
Mo	ⓘ Koechlinite	Bi₂MoO₆
Ag	Silver
Ag	ⓘ Canfieldite	Ag₈SnS₆
Ag	ⓘ Native Silver	Ag
Sn	Tin
Sn	ⓘ Canfieldite	Ag₈SnS₆
Sn	ⓘ Cassiterite	SnO₂
Sn	ⓘ Mawsonite	Cu₆Fe₂SnS₈
Sn	ⓘ Stannite	Cu₂FeSnS₄
Sn	ⓘ Stannoidite	Cu₆⁺Cu₂²⁺(Fe²⁺,Zn)₃Sn₂S₁₂
Sb	Antimony
Sb	ⓘ Stibnite	Sb₂S₃
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Te	Tellurium
Te	ⓘ Rucklidgeite	PbBi₂Te₄
W	Tungsten
W	ⓘ Ferberite	FeWO₄
W	ⓘ Scheelite	Ca(WO₄)
Au	Gold
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS
Pb	ⓘ Rucklidgeite	PbBi₂Te₄
Bi	Bismuth
Bi	ⓘ Bismoclite	BiOCl
Bi	ⓘ Native Bismuth	Bi
Bi	ⓘ Bismuthinite	Bi₂S₃
Bi	ⓘ Cannonite	Bi₂(SO₄)O(OH)₂
Bi	ⓘ Ikunolite	Bi₄S₃
Bi	ⓘ Koechlinite	Bi₂MoO₆
Bi	ⓘ Laitakarite	Bi₄(Se,S)₃
Bi	ⓘ Rucklidgeite	PbBi₂Te₄
Bi	ⓘ Wittichenite	Cu₃BiS₃
Bi	ⓘ Zavaritskite	(BiO)F

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Ashio_Copper_Mine
Wikidata ID:	Q2797958

Other Regions, Features and Areas containing this locality

AsiaContinent

Eurasian Plate

North Japan ArcVolcanic Arc

Japan

Honshu IslandIsland

Okhotsk PlateTectonic Plate

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.

References

Dana 6:A3:44

Dana 7:II:745.

Patchick, Paul F. (1959) Amazing Ashio. Gems & Minerals, (262) 14-18, 87.

home.f01.itscom.net (n.d.) http://home.f01.itscom.net/spiral/ashio/ashio01.html

en.wikipedia.org (n.d.) http://en.wikipedia.org/wiki/Ashio_copper_mine

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

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