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Sanbagawa metamorphic belt, Japani
Regional Level Types
Sanbagawa metamorphic beltMetamorphic belt
JapanCountry

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Key
03773390015438461898155.jpg
Stibnite

Shikoku Island, Japan
03773390015438461898155.jpg
Stibnite

Shikoku Island, Japan
04462980014952096028343.jpg
Stibnite

Shikoku Island, Japan
Locality type:
Metamorphic belt


Attributing a mineral to the "Sanbagawa belt" (sometimes also written "Sambagawa") is awfully vague, since the Sambagawa metamorphic belt stretches roughly 1,000 km from Ouita prefecture on Kyushu island, then across the whole of Shikoku island, through Tokyo on Honshu island, and on into Chiba prefecture. Nevertheless, several literature references have attributed minerals to the "Sanbagawa metamorphic belt", "Sambagawa metamorphic terrane", etc, and most commonly these refer to the portion in Shikoku island.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

14 valid minerals.

Detailed Mineral List:

ⓘ Abswurmbachite
Formula: CuMn3+6(SiO4)O8
Reference: mylonite.eps.nagoya-u.ac.jp/~enami/abstract/ganko0001.html; Enami, M., & Banno, Y. (2001). Partitioning of Sr between coexisting minerals of the hollandite-and piemontite-groups in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. American Mineralogist, 86(3), 205-214.
ⓘ 'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Banno, Y. (1993). Chromian sodic pyroxene, phengite and allanite from the Sanbagawa blueschists in the eastern Kii Peninsula, central Japan. Mineralogical Journal, 16(6), 306-317.
ⓘ Ardennite-(As)
Formula: Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Reference: Minakawa, T., & Momoi, H. (1987). Occurrences of ardennite and sursassite from the metamorphic manganese deposits in the Sanbagawa belt, Shikoku. Japan. Journal of the Mineralogical Society of Japan, 18, 87-98.
ⓘ Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Reference: Banno, Y. (2000). Intermediate high-pressure exhumation of the northern segment of the Sanbagawa belt, Saruta-gawa area, central Shikoku, Japan. Lithos, 50(4), 289-303.
ⓘ Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Enami, M., & Banno, Y. (2001). Partitioning of Sr between coexisting minerals of the hollandite-and piemontite-groups in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. American Mineralogist, 86(3), 205-214.
ⓘ Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
Reference: Enami, M., & Banno, Y. (2001). Partitioning of Sr between coexisting minerals of the hollandite-and piemontite-groups in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. American Mineralogist, 86(3), 205-214.
ⓘ Iron
Formula: Fe
Reference: Sakai, R., Kuroda, Y. (1983): Native iron and the associated minerals from the ultramafic masses in the Sanbagawa belt, central Japan. Jour. Jap. Assoc. Mineral., Petrol., Econ. Geol.: 78: 467-478 (in English); in: Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985): New mineral names. American Mineralogist: 70: 879
ⓘ Lawsonite
Formula: CaAl2(Si2O7)(OH)2 · H2O
Reference: WATANABE, T., & KOBAYASHI, H. (1984). Occurrence of lawsonite in pelitic schists from the Sanbagawa metamorphic belt, central Shikoku, Japan. Journal of Metamorphic Geology, 2(4), 365-369.
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Banno, Y. (2000). Intermediate high-pressure exhumation of the northern segment of the Sanbagawa belt, Saruta-gawa area, central Shikoku, Japan. Lithos, 50(4), 289-303.
ⓘ Muscovite var: Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Reference: Banno, Y. (2000). Intermediate high-pressure exhumation of the northern segment of the Sanbagawa belt, Saruta-gawa area, central Shikoku, Japan. Lithos, 50(4), 289-303.
ⓘ Noelbensonite
Formula: BaMn3+2(Si2O7)(OH)2 · H2O
Reference: mylonite.eps.nagoya-u.ac.jp/~enami/abstract/ganko0001.html
ⓘ Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: Banno, Y. (2000). Intermediate high-pressure exhumation of the northern segment of the Sanbagawa belt, Saruta-gawa area, central Shikoku, Japan. Lithos, 50(4), 289-303.; Enami, M., & Banno, Y. (2001). Partitioning of Sr between coexisting minerals of the hollandite-and piemontite-groups in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. American Mineralogist, 86(3), 205-214.
ⓘ Piemontite-(Sr)
Formula: {CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: mylonite.eps.nagoya-u.ac.jp/~enami/abstract/ganko0001.html; Enami, M., & Banno, Y. (2001). Partitioning of Sr between coexisting minerals of the hollandite-and piemontite-groups in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. American Mineralogist, 86(3), 205-214.
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Banno, Y. (2000). Intermediate high-pressure exhumation of the northern segment of the Sanbagawa belt, Saruta-gawa area, central Shikoku, Japan. Lithos, 50(4), 289-303.
ⓘ Tweddillite
Formula: {CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Description: Probably refers to the Kamisugai mine.
Reference: Lapis 2002(11), 43; Nagashima, M., Armbruster, T., Akasaka, M., & Minakawa, T. (2010). Crystal chemistry of Mn2+-, Sr-rich and REE-bearing piemontite from the Kamisugai mine in the Sambagawa metamorphic belt, Shikoku, Japan. Journal of mineralogical and petrological sciences, 105(3), 142-150.
ⓘ 'UM1983-05-E:CoFe'
Formula: Fe2Co
Reference: Sakai, R., Kuroda, Y. (1983): Native iron and the associated minerals from the ultramafic masses in the Sanbagawa belt, central Japan. Jour. Jap. Assoc. Mineral., Petrol., Econ. Geol.: 78: 467-478 (in English); in: Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985): New mineral names. American Mineralogist: 70: 879
ⓘ Winchite
Formula: ☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Reference: Okamoto, A., & Toriumi, M. (2005). Progress of actinolite‐forming reactions in mafic schists during retrograde metamorphism: an example from the Sanbagawa metamorphic belt in central Shikoku, Japan. Journal of Metamorphic Geology, 23(5), 335-356.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘIron1.AE.05Fe
Group 4 - Oxides and Hydroxides
ⓘCryptomelane4.DK.05aK(Mn4+7Mn3+)O16
ⓘHollandite4.DK.05aBa(Mn4+6Mn3+2)O16
Group 9 - Silicates
ⓘAbswurmbachite9.AG.05CuMn3+6(SiO4)O8
ⓘArdennite-(As)9.BJ.40Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
ⓘBraunite9.AG.05Mn2+Mn3+6(SiO4)O8
ⓘLawsonite9.BE.05CaAl2(Si2O7)(OH)2 · H2O
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar: Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘNoelbensonite9.BE.05BaMn3+2(Si2O7)(OH)2 · H2O
ⓘPiemontite9.BG.05a{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
ⓘPiemontite-(Sr)9.BG.05{CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘTweddillite9.BG.05{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
ⓘWinchite9.DE.20☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
ⓘ'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
ⓘ'UM1983-05-E:CoFe'-Fe2Co

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
(AB)2X3
ⓘAbswurmbachite7.5.1.4CuMn3+6(SiO4)O8
ⓘBraunite7.5.1.3Mn2+Mn3+6(SiO4)O8
AB8X16
ⓘCryptomelane7.9.1.2K(Mn4+7Mn3+)O16
ⓘHollandite7.9.1.1Ba(Mn4+6Mn3+2)O16
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
ⓘSpessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
ⓘLawsonite56.2.3.1CaAl2(Si2O7)(OH)2 · H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
ⓘPiemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
ⓘPiemontite-(Sr)58.2.1a.12{CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Insular, Mixed, Single, and Larger Tetrahedral Groups with insular single and triple groups (n=1, 3)
ⓘArdennite-(As)58.3.1.1Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
ⓘWinchite66.1.3b.1☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
ⓘMuscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
ⓘ'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
ⓘIron-Fe
ⓘMuscovite
var: Phengite		-KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘNoelbensonite-BaMn3+2(Si2O7)(OH)2 · H2O
ⓘTweddillite-{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
ⓘ'UM1983-05-E:CoFe'-Fe2Co

List of minerals for each chemical element

HHydrogen
Hⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Hⓘ NoelbensoniteBaMn23+(Si2O7)(OH)2 · H2O
Hⓘ LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Hⓘ Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Hⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Hⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Hⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Hⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
Oⓘ AbswurmbachiteCuMn63+(SiO4)O8
Oⓘ BrauniteMn2+Mn63+(SiO4)O8
Oⓘ HollanditeBa(Mn64+Mn23+)O16
Oⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Oⓘ CryptomelaneK(Mn74+Mn3+)O16
Oⓘ NoelbensoniteBaMn23+(Si2O7)(OH)2 · H2O
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Oⓘ Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Oⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Oⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Oⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Oⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
NaSodium
Naⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
MgMagnesium
Mgⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Mgⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
AlAluminium
Alⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Alⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Alⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Alⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Alⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ AbswurmbachiteCuMn63+(SiO4)O8
Siⓘ BrauniteMn2+Mn63+(SiO4)O8
Siⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Siⓘ NoelbensoniteBaMn23+(Si2O7)(OH)2 · H2O
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Siⓘ Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Siⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Siⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Siⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Siⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
KPotassium
Kⓘ CryptomelaneK(Mn74+Mn3+)O16
Kⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Caⓘ LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Caⓘ Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Caⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Caⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
MnManganese
Mnⓘ AbswurmbachiteCuMn63+(SiO4)O8
Mnⓘ BrauniteMn2+Mn63+(SiO4)O8
Mnⓘ HollanditeBa(Mn64+Mn23+)O16
Mnⓘ Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Mnⓘ CryptomelaneK(Mn74+Mn3+)O16
Mnⓘ NoelbensoniteBaMn23+(Si2O7)(OH)2 · H2O
Mnⓘ SpessartineMn32+Al2(SiO4)3
Mnⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Mnⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Mnⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
FeIron
Feⓘ Muscovite (var: Phengite)KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ IronFe
Feⓘ UM1983-05-E:CoFeFe2Co
CoCobalt
Coⓘ UM1983-05-E:CoFeFe2Co
CuCopper
Cuⓘ AbswurmbachiteCuMn63+(SiO4)O8
AsArsenic
Asⓘ Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
SrStrontium
Srⓘ Tweddillite{CaSr}{Mn3+AlMn3+}(Si2O7)(SiO4)O(OH)
Srⓘ Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
BaBarium
Baⓘ HollanditeBa(Mn64+Mn23+)O16
Baⓘ NoelbensoniteBaMn23+(Si2O7)(OH)2 · H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Banno, Y. (1993). Chromian sodic pyroxene, phengite and allanite from the Sanbagawa blueschists in the eastern Kii Peninsula, central Japan. Mineralogical Journal, 16(6), 306-317.
Enami M., Banno Y., 2001. Partitioning of Sr between coexisting minerals of the hollandite- and piemontite-group in a quartz-rich schist from the Sanbagawa metamorphic belt, Japan. Amer. Miner., 86: 205-214.
Inui, M.; Wakai, Y.; Sakuragi, H. (2020) Nucleation and Initial Growth of Garnet in Low-Grade Metamorphic Rocks of the Sanbagawa Metamorphic Belt, Kanto Mountains, Japan. Minerals 10, 292.

Localities in this Region

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