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Piemontite-(Sr)

A valid IMA mineral species
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03760350017271926744383.jpg
Piemontite-(Sr)

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
06368730017271926765352.jpg
Piemontite-(Sr)

Shiromaru mine, Okutama-cho, Nishitama district, Tokyo Metropolis, Japan
02867420017594248958722.jpg
Piemontite-(Sr)

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
00513320017866377026929.jpg
Piemontite-(Sr)

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
06368730017271926765352.jpg
Piemontite-(Sr)

Shiromaru mine, Okutama-cho, Nishitama district, Tokyo Metropolis, Japan
02867420017594248958722.jpg
Piemontite-(Sr)

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
03760350017271926744383.jpg
Piemontite-(Sr)

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
06368730017271926765352.jpg
Piemontite-(Sr)

Shiromaru mine, Okutama-cho, Nishitama district, Tokyo Metropolis, Japan
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About Piemontite-(Sr)Hide

04158310017271925967153.jpg
Flag of Piedmont, Italy
Formula:
(CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH)
Colour:
Dark red
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
3.65 - 3.71
Crystal System:
Monoclinic
Name:
Named strontiopiemontite by Bonazzi et al. (1990), as the strontium-dominant analogue of piemontite. It was renamed renamed by the Epidote Subcommittee of the CNMMN in 2006 to piemontite-(Sr). The root name is for the Piedmont region in Italy; Piemont in Italian.
This page provides mineralogical data about Piemontite-(Sr).


Unique IdentifiersHide

Mindat ID:
3773
Long-form identifier:
mindat:1:1:3773:6

Similar NamesHide

PiemontiteA valid IMA mineral species - grandfathered(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Piemontite-(Pb)A valid IMA mineral species(CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH)
SpiemontiteA rock subtype

IMA Classification of Piemontite-(Sr)Hide

Classification of Piemontite-(Sr)Hide

Strunz-mindat (2026):
9.BG.05

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in octahedral [6] and greater coordination
Dana 8th ed.:
58.2.1a.12

58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Hey's CIM Ref.:
16.16.25

16 : Silicates Containing Aluminum and other Metals
16 : Aluminosilicates of Mn

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
Pmt-SrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
PmtWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
PieThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Piemontite-(Sr)Hide

Lustre:
Vitreous
Transparency:
Transparent
Colour:
Dark red
Streak:
Purplish brown
Hardness:
6 on Mohs scale
Cleavage:
Perfect
{001}
Density:
3.65 - 3.71 g/cm3 (Measured)    3.73 g/cm3 (Calculated)

Optical Data of Piemontite-(Sr)Hide

Type:
Biaxial (+)
Dispersion:
very strong
Optical Extinction:
Y = b.

Chemistry of Piemontite-(Sr)Hide

Mindat Formula:
(CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH)
Element Weights:
Element% weight
O39.255 %
Sr16.537 %
Si15.902 %
Mn10.369 %
Al10.185 %
Ca7.564 %
H0.190 %

Calculated from ideal end-member formula.
O
Sr
Si
Mn
Al
Ca
H
Elements listed:
Al, Ca, H, Mn, O, Si, Sr - search for minerals with similar chemistry
Common Impurities:
Fe,Ti,Mg,H2O

Crystallography of Piemontite-(Sr)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 8.8942(1) Å, b = 5.6540(1) Å, c = 10.1928(2) Å
β = 115.100(1)°
Ratio:
a:b:c = 1.573 : 1 : 1.803
Unit Cell V:
464.17 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Prismatic crystals, elongated parallel to [010].

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.493 Å(50)
2.916 Å(100)
2.836 Å(50)
2.678 Å(40)
2.601 Å(50)
2.165 Å(30)
2.117 Å(40)
1.881 Å(30)
1.626 Å(30)
1.590 Å(50)
1.421 Å(30)
Comments:
Val Graveglia, Liguria, Italy. Data are from Bonazzi et al. (1990).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of Piemontite-(Sr)Hide

Co-Type Localities:
ⓘ Cassagna Mine, Ne, Genoa, Liguria, Italy
ⓘ Molinello Mine, Ne, Genoa, Liguria, Italy
General Appearance of Type Material:
Small prismatic crystals, up to 0.5 mm, in veinlets about 3-4 mm thick, that cut black manganese ore.
Place of Conservation of Type Material:
Museo di Mineralogia dell'Università di Firenze.
Geological Setting of Type Material:
Low-temperature metamorphic rocks.
Associated Minerals at Type Locality:
BrauniteCalciteGanophylliteQuartzRhodochrosite
Rhodonite
Reference:
Bonazzi, Paola, Menchetti, Silvio, Palenzona, Andrea (1990) Strontiopiemontite, a new member of the epidote group, from Val Graveglia, Liguria, Italy. European Journal of Mineralogy, 2 (4) 519-523 doi:10.1127/ejm/2/4/0519

Synonyms of Piemontite-(Sr)Hide

Other Language Names for Piemontite-(Sr)Hide

Relationship of Piemontite-(Sr) to other SpeciesHide

Member of:
Epidote Group > Epidote Supergroup
Other Members of Epidote Group:
Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Epidote-(Sr)(CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Hancockite(CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Heflikite(CaCa)(AlAlSc)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Mukhinite(CaCa)(AlAlV3+)O[Si2O7][SiO4](OH)Mon.
Niigataite(CaSr)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Piemontite-(Pb)(CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
Tweddillite(CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
'Unnamed (Fe3+ analogue of Piemontite-(Pb))'(CaPb)(Fe3+AlMn3+)O[Si2O7][SiO4](OH)
'Unnamed (Fe3+-analogue of Piemontite)'(CaCa)(Fe3+AlMn3+)O[Si2O7][SiO4](OH)
'Unnamed (Fe3+-analogue of Piemontite-(Sr))'(CaSr)(Fe3+AlMn3+)O[Si2O7][SiO4](OH)
'Unnamed (Ga-analogue of Epidote)'(CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH)

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Piemontite-(Sr) associated with VuagnatiteCaAl(SiO4)(OH)
1 photo of Piemontite-(Sr) associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

9.BG.AlumovesuvianiteCa19AlAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
9.BG.Alnaperbøeite-(Ce)Ca(Ce2.5Na0.5)(AlAl2Al)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.Zilbermintsite-(La)(CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m
9.BG.Heflikite(CaCa)(AlAlSc)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.MagnesiovesuvianiteCa19MgAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m : P4/n
9.BG.Zoisite-(Pb)(CaPb)(AlAlAl)O[Si2O7][SiO4](OH)Orth. mmm(2/m2/m2/m) : Pnma
9.BG.Shuiskite-(Cr)Ca2Cr3+Cr3+2[Si2O6OH][SiO4](OH)2OMon. 2/m : B2/m
9.BG.Radekškodaite Group
9.BG.05Dissakisite-(La)(CaLa)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Manganiandrosite-(Ce)(Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bDissakisite-(Ce)(CaCe)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Sm)(CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aHancockite(CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Dollaseite-(Ce)(CaCe)(MgAlMg)F[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05a v'Unnamed (Ga-analogue of Epidote)'(CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH)
9.BG.05aClinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aEpidote-(Sr)(CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Vanadoandrosite-(Ce)(Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bVanadoallanite-(La)(CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'Unnamed (Mg-analogue of Ferriallanite-(Ce))'(CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH)
9.BG.05bFerriallanite-(La)(CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Uedaite-(Ce)(Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Tweddillite(CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bÅskagenite-(Nd)(Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]OMon. 2/m : P21/m
9.BG.05Piemontite-(Pb)(CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(La)(CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Y)(CaY)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05aPiemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAkasakaite-(Ce)(CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bManganiandrosite-(La)(Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAkasakaite-(La)(CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bVanadoakasakaite-(La)(CaLa)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Khristovite-(Ce)(CaCe)(MgAlMn2+)F[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriakasakaite-(La)(CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Ferriandrosite-(La)(Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05'Androsite-(Ce)'(Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH)
9.BG.05Vielleaureite-(Ce)Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH)Mon. 2/m : P21/m
9.BG.05Ferriandrosite-(Ce)(Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))'(CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)
9.BG.05bVanadoakasakaite-(Ce)(CaCe)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05Niigataite(CaSr)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bFerriakasakaite-(Ce)(CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05bAllanite-(Nd)(CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.05b'UM1989-32-SiO:AlCaFeHREE'(Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH)
9.BG.05aMukhinite(CaCa)(AlAlV3+)O[Si2O7][SiO4](OH)Mon.
9.BG.05bManganiakasakaite-(La)(CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m : P21/m
9.BG.10Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Orth. mmm(2/m2/m2/m) : Pnma
9.BG.15MacfalliteCa2Mn3+3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
9.BG.15SursassiteMn2+2Al3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
9.BG.20Pumpellyite-(Al)Ca2AlAl2[Si2O6OH][SiO4](OH)2OMon. 2/m
9.BG.20Shuiskite-(Mg)Ca2MgCr3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Julgoldite-(Fe2+)Ca2Fe2+Fe3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20OkhotskiteCa2Mn2+Mn3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Julgoldite-(Mg)Ca2MgFe3+2[Si2O6OH][SiO4](OH)2(OH)Mon.
9.BG.20PoppiiteCa2V3+V3+2[Si2O6OH][SiO4](OH)2OMon. 2/m : B2/m
9.BG.20Julgoldite-(Fe3+)Ca2Fe3+Fe3+2[Si2O6OH][SiO4](OH)2OMon.
9.BG.20Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Pumpellyite-(Fe3+)Ca2Fe3+Al2[Si2O6OH][SiO4](OH)2OMon. 2/m
9.BG.20Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.20Pumpellyite-(Mn2+)Ca2Mn2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m
9.BG.25GanomalitePb9Ca5Mn(Si2O7)4(SiO4)OHex. 6 : P6
9.BG.25WayneburnhamitePb9Ca6(Si2O7)3(SiO4)3Hex. 6 : P6
9.BG.30RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2Mon. 2/m : B2/b
9.BG.35ModraiteCa19Fe2+Al4(Al6Fe2+2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35FluorvesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(F,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35Milanriederite(Ca18[REE])Fe3+Al4(Mg4Al4)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35Manaevite-(Ce)(Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(◻4)◻[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35HongheiteCa19Fe2+Al4(Fe3+,Mg)8(◻4)B[Si2O7]4[(SiO4)10]O(OH,O)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35WiluiteCa19MgAl4(Al,Mg)8(B,◻)4◻[Si2O7]4[(SiO4)10]O(O,OH)9Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35CyprineCa19Cu2+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m : P4/n
9.BG.35ManganvesuvianiteCa19Mn3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m : P4/n
9.BG.40Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7Mon.
9.BG.45DellaiteCa6Si3O11(OH)2Tric.
9.BG.50Ferriperbøeite-(Ce)CaCe3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.50Perbøeite-(La)CaLa3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 Mon. 2/m : P21/m
9.BG.50Perbøeite-(Ce)CaCe3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2 Mon. 2/m : P21/m
9.BG.50Gatelite-(Ce)CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/b
9.BG.50Ferriperbøeite-(La) CaLa3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m : P21/m
9.BG.55Västmanlandite-(Ce)CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2Mon. 2/m : P21/m
9.BG.60Radekškodaite-(La) (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m
9.BG.60Radekškodaite-(Ce)(CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m : P21/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Piemontite-(Sr)Hide

References for Piemontite-(Sr)Hide

Reference List:
Bonazzi, Paola, Menchetti, Silvio, Palenzona, Andrea (1990) Strontiopiemontite, a new member of the epidote group, from Val Graveglia, Liguria, Italy. European Journal of Mineralogy, 2 (4) 519-523 doi:10.1127/ejm/2/4/0519
AKASAKA, Masahide, ZHENG, Yuanyuan, SUZUKI, Yayoi (2000) Maximum strontium content of piemontite formed by hydrothermal synthesis. Journal of Mineralogical and Petrological Sciences, 95 (5) 84-94 doi:10.2465/jmps.95.84
(2001) Piemontite-(Sr). Handbook of Mineralogy. Mineralogical Society of America
Armbruster, Thomas, Bonazzi, Paola, Akasaka, Masahide, Bermanec, Vladimir, Chopin, Christian, Gieré, Reto, Heuss-Assbichler, Soraya, Liebscher, Axel, Menchetti, Silvio, Pan, Yuanming, Pasero, Marco (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18 (5) 551-567 doi:10.1127/0935-1221/2006/0018-0551
NAGASHIMA, Mariko, ARMBRUSTER, Thomas, AKASAKA, Masahide, MINAKAWA, Tetsuo (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 doi:10.2465/jmps.090709
NAGASHIMA, Mariko, SANO, Yuko, KOCHI, Takako, AKASAKA, Masahide, SANO–FURUKAWA, Asami (2020) Crystal chemistry of Sr–rich piemontite from manganese ore deposit of the Tone mine, Nishisonogi Peninsula, Nagasaki, southwest Japan. Journal of Mineralogical and Petrological Sciences, 115 (5) 391-406 doi:10.2465/jmps.191122

Localities for Piemontite-(Sr)Hide

Showing 15 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Italy
 
  • Aosta Valley
    • Saint-Marcel
      • Servette-Chuc mining complex
  • Calabria
    • Cosenza Province
      • Mormanno
Sinisi et al. (2018)
  • Liguria
    • Genoa
      • Ne
Bonazzi et al. (1990) +1 other reference
Bonazzi et al. (1990)
        • Reppia
Redazione (2005)
    • La Spezia Province
      • Borghetto di Vara
Bracco (2017) +1 other reference
Japan
 
  • Hokkaidō Prefecture
    • Okhotsk Subprefecture
      • Kitami City
Kenji Togari (1986) +1 other reference
  • Kochi Prefecture
    • Nankoku city
Minakawa et al. (2008)
Ohe Rikosha specimens +1 other reference
  • Nagasaki Prefecture
    • Nagasaki City
      • Kinkai-Tone-machi
NAGASHIMA et al. (2020)
  • Niigata Prefecture
 ...
... +1 other reference
  • Tokyo Metropolis
    • Nishitama district
      • Okutama-cho
Kato & Matsubara (1986) +3 other references
South Africa
 
  • Northern Cape
    • John Taolo Gaetsewe District Municipality
      • Joe Morolong Local Municipality
Cairncross et al. (1995)
UK
 
  • Wales
    • Gwynedd
      • Aberdaron
        • Rhiw
Wolfe et al. (2008) +1 other reference
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