Chlorite schist.

Motoyama (本山町, Motoyama-chō) is a town located in Nagaoka District, Kōchi Prefecture, Japan. The total area of the town is 134.22 square kilometres (51.82 sq mi). Motoyama has been named one of The Most Beautiful Villages in Japan.

Motoyama is located in the Shikoku Mountains, near the center of northern Kōchi Prefecture. The upper reaches of the Yoshino River and Shikoku's largest dam, the Sameura Dam, are located in the town.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

ⓘ 'Serpentine Subgroup'

ⓘ Sphalerite

ⓘ Talc

ⓘ Vermiculite

10 valid minerals.

Detailed Mineral List:

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

Locality: Yoshino mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

Shimane, Hidetoshi (1958) A Chloritic Mineral Found Associated with Vermiculite. Clay Minerals, 3 (20) 297-301 doi:10.1180/claymin.1958.003.20.04

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

ⓘ Ardennite-(As)

Formula: Mn²⁺₄Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆

References:

The Mineral Species of Japan (5th ed) Matsubara

ⓘ Chalcopyrite

Formula: CuFeS₂

Locality: Shiragayama Mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

Watanabe, M., Hoshino, K., Kagami, H., Nishido, H., Sugiyama, M. (1998) Rb-Sr, Sm-Nd and K-Ar systematics of metamorphosed pillowed basalts and associated Besshi-type deposits in the Sanbagawa Belt, Japan. Mineralium Deposita, 34 (1) 113-120 doi:10.1007/s001260050189

ⓘ 'Chlorite Group'

Localities:

Yoshino mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan
Motoyama, Nagaoka District, Kochi Prefecture, Japan

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

References:

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

ⓘ Hematite

Formula: Fe₂O₃

Locality: Shiragayama Mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

Locality: Shiragayama Mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

ⓘ Pyrite

Formula: FeS₂

Locality: Shiragayama Mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

Locality: Yoshino mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

Shimane, Hidetoshi (1958) A Chloritic Mineral Found Associated with Vermiculite. Clay Minerals, 3 (20) 297-301 doi:10.1180/claymin.1958.003.20.04

ⓘ Sphalerite

Formula: ZnS

Locality: Shiragayama Mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

Locality: Yoshino mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

Shimane, Hidetoshi (1958) A Chloritic Mineral Found Associated with Vermiculite. Clay Minerals, 3 (20) 297-301 doi:10.1180/claymin.1958.003.20.04

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

ⓘ Vermiculite

Formula: Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O

Locality: Yoshino mine, Motoyama, Nagaoka District, Kochi Prefecture, Japan

References:

Shimane, Hidetoshi (1958) A Chloritic Mineral Found Associated with Vermiculite. Clay Minerals, 3 (20) 297-301 doi:10.1180/claymin.1958.003.20.04

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
Group 9 - Silicates
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Ardennite-(As)	9.BJ.40	Mn²⁺₄Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂
ⓘ	Vermiculite	9.EC.50	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Mg	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Al	Aluminium
Al	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ti	Titanium
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Mn	Manganese
Mn	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Ardennite-(As)	Mn₄²⁺Al₄(AlMg)(AsO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆

Fossils

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Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Motoyama,_K%C5%8Dchi
Wikidata ID:	Q735494
GeoNames ID:	1856499

Localities in this Region

Japan

Kochi Prefecture
- Nagaoka District
  - Motoyama
    - Shiragayama Mine
    - Yoshino mine

Other Regions, Features and Areas that Intersect

Amur PlateTectonic Plate

AsiaContinent

Eurasian Plate

Southern Japan ForearcAccretionary Complex

Japan

Shikoku IslandIsland

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Motoyama, Nagaoka District, Kochi Prefecture, JapaniRegional Level TypesMotoyamaTown Nagaoka DistrictDistrict Kochi PrefecturePrefecture JapanCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Fossils

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Localities in this Region

Other Regions, Features and Areas that Intersect

Motoyama, Nagaoka District, Kochi Prefecture, Japan i
Regional Level Types
Motoyama Town
Nagaoka District District
Kochi Prefecture Prefecture
Japan Country