Epidote-(Sr)

9.BG.05a

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO₄ and Si₂O₇ groups; cations in octahedral [6] and greater coordination

Dana 8th ed.:

58.2.2.3

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)

Physical Properties of Epidote-(Sr)Hide

Transparency:

Translucent

Cleavage:

Perfect
parallel to {001}

Optical Data of Epidote-(Sr)Hide

Type:

Biaxial (-)

RI values:

n_α = 1.737(2) n_β = 1.780(2) n_γ = 1.792(2)

2V:

Calculated: 62°

Max Birefringence:

δ = 0.055

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Very High

Colour in reflected light:

pale reddish brown to brown

Pleochroism:

Visible

Comments:

X: pale greenish yellow, and Y = Z: pale reddish brown to brownish pink

Chemical Properties of Epidote-(Sr)Hide

Formula:

{CaSr}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)

IMA Formula:

CaSr(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)

Elements listed:

Al, Ca, Fe, H, O, Si, Sr - search for minerals with similar chemistry

Chemical AnalysisHide

Oxide wt%:

	1
SiO₂	32.4 %
Al₂O₃	19.0 %
Fe₂O₃	13.4 %
Mn₂O₃	0.7 %
MnO	1.3 %
CaO	12.4 %
SrO	7.2 %
PbO	10.9 %
H₂O	1.6 %
Total:	98.9 %

Sample references:

ID	Locality	Reference
1	Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA	Frank K. Mazdab collection (thin section FKM-88; https://www.rockptx.com/fkm-76-to-fkm-100/#FKM-88)

Crystallography of Epidote-(Sr)Hide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/m

Cell Parameters:

a = 8.928(5) Å, b = 5.652(1) Å, c = 10.244(5) Å
β = 114.46(4)°

Ratio:

a:b:c = 1.58 : 1 : 1.812

Unit Cell V:

470.5 Å³

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0013136	Epidote-(Sr)	Minakawa T, Fukushima H, Nishio-Hamane D, Miura H (2008) Epidote-(Sr), CaSrAl2Fe(Si2O7)(SiO4)(OH), a new mineral from the Ananai mine, Kochi Prefecture, Japan Journal of Mineralogical and Petrological Sciences 103 400-406		2008	Ananai mine, Kochi Prefecture, Japan	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Epidote-(Sr)'
loop_
_publ_author_name
'Minakawa T'
'Fukushima H'
'Nishio-Hamane D'
'Miura H'
_journal_name_full 'Journal of Mineralogical and Petrological Sciences'
_journal_volume 103 
_journal_year 2008
_journal_page_first 400
_journal_page_last 406
_publ_section_title
;
 Epidote-(Sr), CaSrAl2Fe(Si2O7)(SiO4)(OH), a new mineral from the Ananai mine,
 Kochi Prefecture, Japan
;
_database_code_amcsd 0013136
_chemical_compound_source 'Ananai mine, Kochi Prefecture, Japan'
_chemical_formula_sum '(Ca1.1 Sr.9) Al1.92 Fe.88 Mn.2 Si3 O13 H'
_cell_length_a 8.928
_cell_length_b 5.652
_cell_length_c 10.244
_cell_angle_alpha 90
_cell_angle_beta 114.46
_cell_angle_gamma 90
_cell_volume 470.530
_exptl_crystal_density_diffrn      3.728
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
CaA1   0.76400   0.75000   0.15600   0.96000   0.00963
SrA1   0.76400   0.75000   0.15600   0.04000   0.00963
SrA2   0.59500   0.75000   0.42200   0.86000   0.01165
CaA2   0.59500   0.75000   0.42200   0.14000   0.01165
AlM1   0.00000   0.00000   0.00000   0.90000   0.00646
FeM1   0.00000   0.00000   0.00000   0.10000   0.00646
AlM2   0.00000   0.00000   0.50000   1.00000   0.00545
FeM3   0.29500   0.25000   0.22000   0.78000   0.00532
MnM3   0.29500   0.25000   0.22000   0.20000   0.00532
AlM3   0.29500   0.25000   0.22000   0.02000   0.00532
Si1   0.33800   0.75000   0.03700   1.00000   0.00570
Si2   0.68500   0.25000   0.27400   1.00000   0.00570
Si3   0.17400   0.75000   0.31500   1.00000   0.00570
O1   0.24600   0.99900   0.04300   1.00000   0.00887
O2   0.29200   0.97300   0.33600   1.00000   0.00887
O3   0.78500   0.01300   0.32900   1.00000   0.00887
O4   0.04100   0.25000   0.11700   1.00000   0.00887
O5   0.04500   0.75000   0.14300   1.00000   0.00887
O6   0.07200   0.75000   0.41800   1.00000   0.00887
O7   0.50900   0.75000   0.17600   1.00000   0.00887
O8   0.53200   0.25000   0.31600   1.00000   0.00887
O9   0.64200   0.25000   0.10900   1.00000   0.00887
O-H10   0.07600   0.25000   0.42500   1.00000   0.00887

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.92 Å	(100)
2.58 Å	(49)
3.50 Å	(42)
2.61 Å	(42)
2.72 Å	(41)
2.83 Å	(32)
3.26 Å	(23)

Type Occurrence of Epidote-(Sr)Hide

Type Locality:

ⓘ Ananai mine, Nankoku city, Kochi Prefecture, Japan

General Appearance of Type Material:

prismatic crystals up to 1 cm in length

Place of Conservation of Type Material:

Museum at the Hokkaido University, Sapporo, Japan (specimen no. Mineral-07400)

Associated Minerals at Type Locality:

Synonyms of Epidote-(Sr)Hide

IMA2006-055

Other Language Names for Epidote-(Sr)Hide

Japanese:ストロンチウム緑簾石

Relationship of Epidote-(Sr) to other SpeciesHide

Member of:

Epidote Group > Epidote Supergroup

Other Members of this group:

Clinozoisite	{Ca₂}{Al₃}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Hancockite	{CaPb}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
Mukhinite	{Ca₂}{Al₂V³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
Niigataite	{CaSr}{Al₃}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m
Piemontite	{Ca₂}{Al₂Mn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Piemontite-(Pb)	{CaPb}{Al₂Mn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Piemontite-(Sr)	{CaSr}{Al₂Mn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
Tweddillite	{CaSr}{Mn³⁺AlMn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
Unnamed (Fe3+ analogue of Piemontite-(Pb))	{CaPb}{Fe³⁺AlMn³⁺}(Si₂O₇)(SiO₄)O(OH)
Unnamed (Fe3+-analogue of Piemontite)	{CaCa}{Fe³⁺AlMn³⁺}(Si₂O₇)(SiO₄)(OH,O)₂
Unnamed (Fe3+-analogue of Piemontite-(Sr))	{CaSr}{Fe³⁺AlMn³⁺}(Si₂O₇)(SiO₄)O(OH)
Unnamed (Ga-dominant member of the epidote group)	{Ca₂}{Al₂(Ga,Fe)}(Si₂O₇)(SiO₄)O(OH)

Related Minerals - Nickel-Strunz Grouping Hide

9.BG.	Shuiskite-(Cr)	Ca₂Cr³⁺Cr³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.	Alnaperbøeite-(Ce)	Ca(Ce_2.5Na_0.5)(AlAl₂Al)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.	Magnesiovesuvianite	Ca₁₉MgAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.	Alumovesuvianite	Ca₁₉AlAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.05b	Allanite-(Ce)	{CaCe}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(La)	{CaLa}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Y)	{CaY}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
9.BG.05a	Clinozoisite	{Ca₂}{Al₃}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Dissakisite-(Ce)	{CaCe}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Dollaseite-(Ce)	{CaCe}{MgAlMg}(Si₂O₇)(SiO₄)F(OH)	Mon. 2/m : P2₁/m
9.BG.05a	Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05a	Hancockite	{CaPb}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
9.BG.05	Khristovite-(Ce)	{CaCe}{MgAlMn²⁺}(Si₂O₇)(SiO₄)F(OH)	Mon. 2/m : P2₁/m
9.BG.05a	Mukhinite	{Ca₂}{Al₂V³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
9.BG.05a	Piemontite	{Ca₂}{Al₂Mn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Piemontite-(Sr)	{CaSr}{Al₂Mn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
9.BG.05b	Manganiandrosite-(La)	{Mn²⁺La}{Mn³⁺AlMn²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon.
9.BG.05	Tawmawite	{Ca₂}{(Al,Fe³⁺,Cr)₃}(Si₂O₇)(SiO₄)O(OH)
9.BG.05	Tweddillite	{CaSr}{Mn³⁺AlMn³⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriallanite-(Ce)	{CaCe}{Fe³⁺AlFe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Niigataite	{CaSr}{Al₃}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m
9.BG.05	Manganiandrosite-(Ce)	{Mn²⁺Ce}{Mn³⁺AlMn²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Dissakisite-(La)	{CaLa}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Vanadoandrosite-(Ce)	{Mn²⁺Ce}{V³⁺AlMn²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05	Uedaite-(Ce)	{Mn²⁺Ce}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Nd)	{CaNd}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriallanite-(La)	{CaLa}{Fe³⁺AlFe²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.05b	Åskagenite-(Nd)	{Mn²⁺Nd}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O₂	Mon. 2/m : P2₁/m
9.BG.9.BG.	Ferriakasakaite-(La)	{CaLa}{Fe³⁺AlMn²⁺}(Si₂O₇)(SiO₄)O(OH)	Mon. 2/m : P2₁/m
9.BG.9.BG.	Ferriandrosite-(Ce)	{Mn²⁺Ce}{Fe³⁺AlMn²⁺}(SiO₄)(Si₂O₇)O(OH)
9.BG.9.BG	Ferriperbøeite-(Ce)	CaCe₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.10	Zoisite	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	Orth. mmm (2/m 2/m 2/m) : Pnma
9.BG.15	Macfallite	Ca₂Mn³⁺₃(SiO₄)(Si₂O₇)(OH)₃	Mon.
9.BG.15	Sursassite	Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃	Mon. 2/m : P2₁/m
9.BG.20	Julgoldite-(Fe2+)	Ca₂Fe²⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Okhotskite	Ca₂Mn²⁺Mn³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Pumpellyite-(Fe2+)	Ca₂Fe²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Pumpellyite-(Fe3+)	Ca₂Fe³⁺Al₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
9.BG.20	Pumpellyite-(Mg)	Ca₂MgAl₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Pumpellyite-(Mn2+)	Ca₂Mn²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Shuiskite-(Mg)	Ca₂MgCr³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Julgoldite-(Fe3+)	Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
9.BG.20	Pumpellyite-(Al)	Ca₂AlAl₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
9.BG.20	Poppiite	Ca₂V³⁺V³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.20	Julgoldite-(Mg)	Ca₂MgFe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.25	Ganomalite	Pb₉Ca₅Mn(Si₂O₇)₄(SiO₄)O	Hex.
9.BG.30	Rustumite	Ca₁₀(Si₂O₇)₂(SiO₄)(OH)₂Cl₂	Mon.
9.BG.35	Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
9.BG.35	Wiluite	Ca₁₉MgAl₄(Al,Mg)₈(B,◻)₄◻[Si₂O₇]₄[(SiO₄)₁₀]O(O,OH)₉	Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
9.BG.35	Manganvesuvianite	Ca₁₉Mn³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.35	Fluorvesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(F,OH)₉	Tet. 4/mmm (4/m 2/m 2/m)
9.BG.35	Cyprine	Ca₁₉Cu²⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.40	Vyuntspakhkite-(Y)	(Y,Yb)₄Al_2.5-1.5(Si,Al)_1.5-2.5(SiO₄)₄O(OH)₇	Mon.
9.BG.45	Dellaite	Ca₆Si₃O₁₁(OH)₂	Tric.
9.BG.50	Gatelite-(Ce)	CaCe₃(AlAl₂Mg)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/b
9.BG.55	Västmanlandite-(Ce)	CaCe₃(MgAl₂Mg)[Si₂O₇][SiO₄]₃F(OH)₂	Mon. 2/m : P2₁/m

Related Minerals - Dana Grouping (8th Ed.)Hide

58.2.2.1	Julgoldite-(Fe2+)	Ca₂Fe²⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
58.2.2.2	Julgoldite-(Fe3+)	Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
58.2.2.3	Okhotskite-(Mg)	Ca₈(Mn²⁺,Mg)(Mn³⁺,Al,Fe³⁺)(SiO₄)(Si₂O₇)(OH)₂ · H₂O	Mon.
58.2.2.5	Pumpellyite-(Fe2+)	Ca₂Fe²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
58.2.2.6	Pumpellyite-(Fe3+)	Ca₂Fe³⁺Al₂[Si₂O₆OH][SiO₄](OH)₂O	Mon.
58.2.2.7	Pumpellyite-(Mg)	Ca₂MgAl₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
58.2.2.8	Pumpellyite-(Mn2+)	Ca₂Mn²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
58.2.2.9	Shuiskite-(Mg)	Ca₂MgCr³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.

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.

References for Epidote-(Sr)Hide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Minakawa, T., H. Fukushima, D. Nishio-Hamane & H. Miura (2008): Epidote-(Sr), CaSrAl₂Fe³+(Si₂O₇)(SiO₄)(OH), a new mineral from the Ananai mine, Kochi Prefecture, Japan. Journal of Mineralogical and Petrological Sciences 103, 400-406.

Internet Links for Epidote-(Sr)Hide

mindat.org URL:

https://www.mindat.org/min-31558.html
Please feel free to link to this page.

Search Engines:

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External Links:

Look for Epidote-(Sr) on Webmineral

Look for Epidote-(Sr) on Wikipedia

Look for Epidote-(Sr) on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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Localities for Epidote-(Sr)Hide

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.

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.


France
Nouvelle-Aquitaine Pyrénées-Atlantiques Aramits Ance ⓘ Col d'Etche	MONCHOUX P., FONTAN F., DE PARSEVAL P., MARTIN R. F., WANG R. C. (2006) - Igneous albitite dikes in orogenic lherzolithes, Western Pyrénées, France: A possible source for corundum and alkali feldspar xenocrysts in basaltic terranes. I. Mineralogical Asssociations. The Canadian Mineralogist, Vol. 44, pp. 817-842.
ⓘ Col d'Urdach	MONCHOUX P., FONTAN F., DE PARSEVAL P., MARTIN R. F., WANG R. C. (2006) - Igneous albitite dikes in orogenic lherzolithes, Western Pyrénées, France: A possible source for corundum and alkali feldspar xenocrysts in basaltic terranes. I. Mineralogical Asssociations. The Canadian Mineralogist, Vol. 44, pp. 817-842.
Occitanie Hautes-Pyrénées Bagnères-de-Bigorre Avezac-Prat-Lahitte ⓘ Espéchère	MONCHOUX P., FONTAN F., DE PARSEVAL P., MARTIN R. F., WANG R. C. (2006) - Igneous albitite dikes in orogenic lherzolithes, Western Pyrénées, France: A possible source for corundum and alkali feldspar xenocrysts in basaltic terranes. I. Mineralogical Asssociations. The Canadian Mineralogist, Vol. 44, pp. 817-842.

Japan (TL)
Kochi Prefecture Nankoku city ⓘ Ananai mine (TL)	Journal of Mineralogical and Petrological Sciences 103,400-406(2008)
Niigata Prefecture ⓘ Itoigawa City	Miyajima H (2014) Jadeitite from Itoigawa, Niigata Prefecture, central Japan. 21 st meeting of the International Mineralogical Association. p 200
Tokyo Metropolis Nishitama district Okutama-cho ⓘ Shiromaru mine (Hakumaru mine)	Tanaka, T. & Hamane, D. (2016) Epidote-(Sr) from Shiromaru mine, Tokyo prefecture, Japan. (conference presentation R1-P14)

UK
Wales Gwynedd Aberdaron Rhiw ⓘ Benallt Mine (Tyddyn Meirion mine; Ty Canol mine)	Cotterell, T., Tayler, R.(2012): Epidote-(Sr) and piemontite-(Sr): two minerals new to Britain from Benallt mine, Pen Llŷn, Gwynedd, Wales. UK Journal of Mines and Minerals 33:39-42.

USA
New Jersey Sussex County Franklin Mining District Franklin ⓘ Franklin Mine	Frank K. Mazdab collection (thin section FKM-88; https://www.rockptx.com/fkm-76-to-fkm-100/#FKM-88)

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