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

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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.

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