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Manganepidote

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Piemontite

Praborna Mine, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italy

Thulite

Søre Lia Quarry, Otta River, Lom, Innlandet, Norway

Thulite

Mjønes Tunnel, Åstfjorden, Snillfjord, Orkland, Trøndelag, Norway

Piemontite

Praborna Mine, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italy

Thulite

Søre Lia Quarry, Otta River, Lom, Innlandet, Norway

Thulite

Mjønes Tunnel, Åstfjorden, Snillfjord, Orkland, Trøndelag, Norway

Piemontite

Praborna Mine, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italy

Thulite

Søre Lia Quarry, Otta River, Lom, Innlandet, Norway

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About ManganepidoteHide

Synonym of:

Piemontite, 'Thulite'

This page provides mineralogical data about Manganepidote.

Unique IdentifiersHide

Mindat ID:

6046

Long-form identifier:

mindat:1:1:6046:8

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	Year	Locality	Temp (K)
0018299	Piemontite	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 105 142-150	2010	Kamisugai mine, Sambagawa metamorphic belt, Shikoku, Japan	293
0016954	Piemontite	Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246	2010	synthetic	293
0016953	Piemontite	Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246	2010	synthetic	293
0006437	Piemontite	Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33	1992	Monte Brugiana, Alpi Apuane, Italy	293
0006436	Piemontite	Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33	1992	Monte Brugiana, Alpi Apuane, Italy	293
0006435	Piemontite	Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33	1992	Monte Brugiana, Alpi Apuane, Italy	293
0006434	Piemontite	Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33	1992	Monte Brugiana, Alpi Apuane, Italy	293
0003596	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003595	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003594	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003593	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003592	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003591	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003590	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003589	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003588	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003587	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0003586	Piemontite	Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129	2004		293
0001798	Piemontite	Bonazzi P, Menchetti S, Reinecke T (1996) Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece American Mineralogist 81 735-742	1996		293
0001203	Piemontite	Catti M, Ferraris G, Ivaldi G (1988) Thermal behavior of the crystal structure of strontian piemontite American Mineralogist 73 1370-1376	1988		293
0001202	Piemontite	Catti M, Ferraris G, Ivaldi G (1988) Thermal behavior of the crystal structure of strontian piemontite American Mineralogist 73 1370-1376	1988		293
0000191	Piemontite	Dollase W A (1969) Crystal structure and cation ordering of piemontite American Mineralogist 54 710-717	1969		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Piemontite'
loop_
_publ_author_name
'Nagashima M'
'Armbruster T'
'Akasaka M'
'Minakawa T'
_journal_name_full 'Journal of Mineralogical and Petrological Sciences'
_journal_volume 105 
_journal_year 2010
_journal_page_first 142
_journal_page_last 150
_publ_section_title
;
 Crystal chemistry of Mn2+-, Sr-rich and REE-bearing piemontite from the
 Kamisugai mine in the Sambagawa metamorphic belt, Shikoku, Japan
;
_database_code_amcsd 0018299
_chemical_compound_source 'Kamisugai mine, Sambagawa metamorphic belt, Shikoku, Japan'
_chemical_formula_sum 'Ca1.3 Mn1.13 Sr.19 La.03 Ce.05 Nd.02 Al1.83 Fe1.11 Si3 O12.87 H.87'
_cell_length_a 8.8673
_cell_length_b 5.6747
_cell_length_c 10.1594
_cell_angle_alpha 90
_cell_angle_beta 114.719
_cell_angle_gamma 90
_cell_volume 464.371
_exptl_crystal_density_diffrn      3.914
_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
CaAl   0.75740   0.75000   0.15270   0.59000   0.01570
MnAl   0.75740   0.75000   0.15270   0.41000   0.01570
CaA2   0.59500   0.75000   0.42469   0.71000   0.00870
SrA2   0.59500   0.75000   0.42469   0.19000   0.00870
LaA2   0.59500   0.75000   0.42469   0.03000   0.00870
CeA2   0.59500   0.75000   0.42469   0.05000   0.00870
NdA2   0.59500   0.75000   0.42469   0.02000   0.00870
AlMl   0.00000   0.00000   0.00000   0.72000   0.00850
MnMl   0.00000   0.00000   0.00000   0.17000   0.00850
FeMl   0.00000   0.00000   0.00000   0.77000   0.00850
AlM2   0.00000   0.00000   0.50000   1.00000   0.00880
AlM3   0.29990   0.25000   0.21930   0.11000   0.00960
MnM3   0.29990   0.25000   0.21930   0.55000   0.00960
FeM3   0.29990   0.25000   0.21930   0.34000   0.00960
Sil   0.34330   0.75000   0.04280   1.00000   0.01020
Si2   0.68900   0.25000   0.27570   1.00000   0.01030
Si3   0.18540   0.75000   0.31930   1.00000   0.00970
O1   0.23680   0.99270   0.03470   1.00000   0.01650
O2   0.30660   0.97820   0.35450   1.00000   0.01480
O3   0.80090   0.01430   0.33400   1.00000   0.01650
O4   0.05630   0.25000   0.13050   1.00000   0.01270
O5   0.04110   0.75000   0.14920   1.00000   0.01360
O6   0.07420   0.75000   0.41400   1.00000   0.01250
O7   0.51700   0.75000   0.17850   1.00000   0.01900
O8   0.53400   0.25000   0.32010   1.00000   0.02000
O9   0.61630   0.25000   0.09990   1.00000   0.02400
O10   0.08850   0.25000   0.43290   0.87000   0.01170
H10   0.03000   0.25000   0.32700   0.87000   0.05000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
CaAl 0.02120 0.01280 0.01710 0.00000 0.01190 0.00000
MnAl 0.02120 0.01280 0.01710 0.00000 0.01190 0.00000
CaA2 0.00690 0.01240 0.00560 0.00000 0.00150 0.00000
SrA2 0.00690 0.01240 0.00560 0.00000 0.00150 0.00000
LaA2 0.00690 0.01240 0.00560 0.00000 0.00150 0.00000
CeA2 0.00690 0.01240 0.00560 0.00000 0.00150 0.00000
NdA2 0.00690 0.01240 0.00560 0.00000 0.00150 0.00000
AlMl 0.00900 0.00560 0.01030 -0.00050 0.00330 0.00040
MnMl 0.00900 0.00560 0.01030 -0.00050 0.00330 0.00040
FeMl 0.00900 0.00560 0.01030 -0.00050 0.00330 0.00040
AlM2 0.00860 0.00620 0.01190 -0.00020 0.00450 -0.00070
AlM3 0.00870 0.00820 0.00960 0.00000 0.00150 0.00000
MnM3 0.00870 0.00820 0.00960 0.00000 0.00150 0.00000
FeM3 0.00870 0.00820 0.00960 0.00000 0.00150 0.00000
Sil 0.01000 0.00890 0.01140 0.00000 0.00430 0.00000
Si2 0.01060 0.00840 0.01250 0.00000 0.00560 0.00000
Si3 0.01000 0.00970 0.01070 0.00000 0.00570 0.00000
O1 0.01800 0.00900 0.02600 0.00200 0.01200 0.00100
O2 0.01400 0.01600 0.01500 -0.00300 0.00700 -0.00100
O3 0.01300 0.00800 0.02200 0.00100 0.00100 0.00000
O4 0.01500 0.01100 0.01300 0.00000 0.00700 0.00000
O5 0.01200 0.01300 0.01500 0.00000 0.00500 0.00000
O6 0.01500 0.00900 0.01800 0.00000 0.01200 0.00000
O7 0.01600 0.01700 0.01600 0.00000 0.00100 0.00000
O8 0.01700 0.02500 0.02600 0.00000 0.01600 0.00000
O9 0.02800 0.03300 0.01400 0.00000 0.01100 0.00000
O10 0.01300 0.01000 0.01600 0.00000 0.01000 0.00000

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.

Manganepidote in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Metamorphic rock
- Cinnabrite

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References for ManganepidoteHide

Reference List:

Localities for ManganepidoteHide

Showing 519 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.


Algeria
Skikda Province Azzaba District Es Sebt ⓘ Djebel Guettara Mn deposit	[Piemontite] Heflik (1989)

Antarctica	[Piemontite]


Argentina
Córdoba Province Sierra de Córdoba El Pilón complex ⓘ Tamain quarries	[Piemontite] Rapela et al. (2002)

Australia
New South Wales Mouramba Co. Nymagee ⓘ Hera Mine (Hera deposit)	[Zoisite var: Thulite] Dr A.R. McKinnon
Queensland Gympie Region Amamoor Creek ⓘ Amamoor Mine	[Piemontite] Brooks (1962)
North Burnett Region Mount Biggenden ⓘ Biggenden Mine	[Piemontite] Edraki et al. (2025)
South Australia Pastoral Unincorporated Area Bimbowrie Conservation Park ⓘ Old Boolcoomata Station	[Piemontite] Noble et al. (1983)
ⓘ White Rock Feldspar Mine	[Piemontite] Bosworth et al. (2001)
Iron Knob ⓘ Iron Monarch Main Pit	[Piemontite] Francis (2010)
Tasmania West Tamar municipality Beaconsfield district ⓘ Andersons Creek	[Zoisite var: Thulite] Bottrill et al. (2008)
ⓘ Western Australia	[Zoisite var: Thulite] Mason (1976)

Austria
Lower Austria Melk District Dunkelsteinerwald Kochholz ⓘ Marble quarry	[Zoisite var: Thulite] Knobloch (2004)
Emmersdorf an der Donau ⓘ Reith	[Zoisite var: Thulite] Exel (1993)
Persenbeug-Gottsdorf Loja ⓘ Quarry IV- Middle & Northern Area	[Zoisite var: Thulite] Löffler et al. (2011)
ⓘ Quarry IV- Southern Area	[Zoisite var: Thulite] Löffler et al. (2011)
Salzburg Tamsweg District Tweng ⓘ Fuchs Alp - Fuchs lake area	[Piemontite] Kolitsch et al. (2015) +3 other references
ⓘ Radiolarite outcrop (incl. Gfrererloch)	[Piemontite] Strasser (1989)
ⓘ Lagler	[Piemontite] Kolitsch et al. (2025)
ⓘ Lapernigspitze	[Piemontite] Kolitsch et al. (2025)
Zell am See District Bramberg am Wildkogel Larmkogel ⓘ West slope	[Piemontite] Strasser (1989)
ⓘ West slope of Schafkopf	[Piemontite] Exel (1993)
Hollersbach im Pinzgau Scharnbachgraben ⓘ Achsel Alp mine	[Piemontite] Strasser (1989)
Kaprun Mooserboden reservoir ⓘ Mooser dam	[Piemontite] Strasser (1989)
Maishofen Forsthof ⓘ Diabase outcrops	[Piemontite] Strasser (1989)
Neukirchen am Großvenediger ⓘ Törlbirg	[Zoisite var: Thulite] Exel (1993)
ⓘ Tyrol	[Zoisite var: Thulite] Mason (1976)
Innsbruck-Land District Navis ⓘ Navis stream (Navis creek) ?	[Piemontite] Kolitsch et al. (2019)
Obernberg am Brenner ⓘ Obernberger Tribulaun	[Piemontite] Kolitsch et al. (2018)
Lienz District Kals am Großglockner Kals valley ⓘ Ködnitz valley	[Piemontite] Neinaveie (1979)
Prägraten am Großvenediger Timmelbach valley ⓘ Wunwand (Wunspitze)	[Piemontite] Kolitsch et al. (2019)
Schwaz District Gerlos ⓘ Grund hut (Grund huts)	[Piemontite] Schmidegg (1963) +1 other reference
Schönach valley ⓘ Plattenscharte - Mitterkopf area	[Piemontite] Lapis 34 (7-8)
Zillertal ⓘ Gerlos valley	[Piemontite] Exel (1993)

Belgium
Wallonia Liège ⓘ Lienne valley	[Piemontite] Schreyer et al. (1986) +2 other references
Luxembourg Vielsalm Salmchâteau ⓘ Le Coreux	[Piemontite] Kramm (1979) +1 other reference

Canada
British Columbia Golden Mining Division ⓘ Ice River Alkaline Complex	[Piemontite]
Lillooet Mining Division ⓘ Greenbay deposit	[Zoisite var: Thulite] www.em.gov.bc.ca (n.d.)
Québec Abitibi-Témiscamingue Témiscamingue RCM ⓘ Rémigny armenite occurrence	[Piemontite, Zoisite var: Thulite] Sabina (2000) +1 other reference
Yukon Whitehorse mining district Whitehorse Copper Belt ⓘ Grafter Mine	[Zoisite var: Thulite] Héon (2004)
ⓘ Keewenaw Mine	[Zoisite var: Thulite] Héon (2004)
ⓘ Little Chief Mine	[Zoisite var: Thulite] Tenney et al. (1967-1980) +1 other reference

Chile
Antofagasta El Loa Province San Jose ⓘ Tuina Mine (Tuina SX-EX Copper Mine)	[Piemontite] Robert Jenkins
Coquimbo Elqui Province La Serena Talcuna mining district ⓘ Balcanes Mine	[Piemontite] Oyarzun et al. (1998)
ⓘ Placetas Mine	[Piemontite] Oyarzun et al. (1998)
Limarí Province Fragua district ⓘ Fragua mine	[Piemontite] C. Ruiz Fuller/F. Peebles (1988)

China
Guangxi Chongzuo Daxin Co. ⓘ Xialei Mine (Daxin Mine)	Jinbang Wang (1987) +1 other reference
Guigang Guiping Co. ⓘ Mugui Mine	Shikun Huang (1990)
Guizhou Zunyi Bozhou District ⓘ Zunyi Mn deposit	Shikun Huang (1990)
ⓘ Hainan	[Piemontite] Mingsheng Peng et al. (1982)
Qinghai Haibei Tibetan Autonomous Prefecture Qilian Co. ⓘ Qingshuigou	[Piemontite] Yong-Jiang Liu et al. (2006)
Sichuan Ngawa Autonomous Prefecture (Aba Autonomous Prefecture) Heishui Co. Hongyan ⓘ Hongyan Mn deposit	[Piemontite] Chengzhong Zhang and Zengda Liu (2006)
ⓘ Xugu Mn deposit	[Piemontite] Bing Zhou et al. (2007)
Xinjiang Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) Bu'erjin Co. (Burqin Co.; Burchin Co.) ⓘ Kukuke garnet deposit	[Zoisite var: Thulite] Yanling Tang (2005)

Czech Republic
Olomouc Region Jeseník District Černá Voda ⓘ Staré Podhradí	[Zoisite var: Thulite] Kruťa
Žulová ⓘ Starost	[Zoisite var: Thulite] Kruťa (Frýdberka)
Plzeň Region Klatovy District ⓘ Běšiny	[Zoisite var: Thulite] Černý

Czech Republic/Poland
ⓘ Pomezní Ridge (Grzbiet Lasocki)	[Zoisite var: Thulite] Lis et al. (1986)

Finland
Kainuu Sotkamo ⓘ Talvivaara Mine (Talvivaara Sotkamo Mine)	[Zoisite var: Thulite] Kinnunen et al. (2013)
North Karelia Joensuu ⓘ Valkeavaara	[Piemontite] Hyvärineb

France
Auvergne-Rhône-Alpes Savoie Saint-Jean-de-Maurienne Bessans ⓘ Le Coin	[Piemontite] Chopin (1978)
Bonneval-sur-Arc ⓘ Ouille du Midi	[Piemontite] Chopin (1978) +1 other reference
Brittany Morbihan Lorient Groix Primiture ⓘ Les Saisies	[Piemontite] Chauris (2014)
Occitanie Ariège Foix Artigues ⓘ Laurenti Lake ?	[Piemontite] Christian Berbain collection
Saint-Girons Seix Salau ⓘ Anglade Mine	[Piemontite] Bull. Minéral.
Pyrénées-Orientales Céret Prats-de-Mollo-la-Preste ⓘ Costabonne mines (Costabona mines)	[Piemontite] Dubru. M (1986)
Provence-Alpes-Côte d'Azur Var Toulon Le Pradet ⓘ Cap Garonne Mine ?	[Piemontite] David Hospital collection +1 other reference

Germany
Bavaria Lower Bavaria Freyung-Grafenau District Saldenburg Matzersdorf ⓘ Krenn Quarry	[Piemontite] Habel (2000) +1 other reference
Passau District Tittling Tittling Hötzendorf ⓘ Granodiorite quarries (incl. Kusser Quarry)	[Piemontite] Weiß (1990)
Lower Franconia Aschaffenburg District Haibach Dörrmorsbach ⓘ Stahl quarry	[Piemontite] Wittern (2001)
Hesse Darmstadt Bergstraße Bensheim Auerbach ⓘ Linck marble works	[Piemontite] Weiß (1990)
Darmstadt-Dieburg Mühltal Nieder-Ramstadt Kirchberg ⓘ Manganese mines	[Piemontite] Weiß (1990)
Waschenbach ⓘ Emmertsberg quarry	[Zoisite var: Thulite] Weiß (1990)
Lower Saxony Goslar District Harz (Landkreis Goslar) ⓘ Huneberg Quarry	[Piemontite] Baumgärtl (2014)
Schleswig-Holstein Dithmarschen Buchholz ⓘ Gravel pit Lucht	[Piemontite] Wittern (2001)

Greece
Attica East Attica Lavreotiki ⓘ Lavrion Mining District	[Piemontite] FITROS et al. (2014)
Marathon ⓘ Varnavas	[Piemontite] Stouraiti et al. (2022) +1 other reference
Central Greece Euboea ⓘ Chalcis	[Piemontite] Michael Samouhos specimen
ⓘ Karystos	[Piemontite] Brian Kosnar
ⓘ Myloi (Myli)	[Piemontite] Pasero et al. (1991)
Eastern Macedonia and Thrace Thasos ⓘ Kathares	[Piemontite] Vason et al. (1993)
Theologos ⓘ Trikorfo	[Piemontite, Zoisite var: Thulite] Su +17 other references
South Aegean Andros Vasiliko Mountain ⓘ Apikia	[Piemontite] Reinecke et al. (1991)
ⓘ Vourkoti	[Piemontite] Reinecke et al. (1985)
ⓘ Vitali Mine	[Piemontite, Zoisite var: Thulite] Reinecke (1982) +1 other reference
Syros-Ermoupoli Syros Gria Spilia ⓘ Palos Hill	[Piemontite] Altherr et al. (2013)

India
Madhya Pradesh Jabalpur Division Chhindwara District ⓘ Gowari Wadhona Mine	[Piemontite] Roy et al. (1968) +1 other reference
Jhabua District ⓘ Kajlidongri Mine	[Piemontite] Fermor et al. (1906) +1 other reference
Maharashtra Nagpur Division Bhandara District ⓘ Sitasaongi mine	[Piemontite] Bilgrami (1955)
West Bengal Purulia District ⓘ Manbazar gondites	[Piemontite] Mukherjee et al. (1975) +1 other reference

Iran
Sistan and Baluchestan Province Zahedan County Dehoo ⓘ Dehoo manganese deposit	[Piemontite] Lotfi et al. (2017)

Italy
Aosta Valley Fénis Clavalité Valley ⓘ Chez Botz (Chez Boche)	[Piemontite] Castello (1981) +2 other references
Nus Saint-Barthélemy ⓘ Varenche Mine	[Piemontite] Pelloux (1946) +2 other references
Rhêmes-Notre-Dame Rifugio Gian Federico Benevolo (Rifugio Benevolo) ⓘ Piemontite occurrence	[Piemontite] Alessandro Cantamessa collection
Saint-Marcel ⓘ Servette-Chuc mining complex	[Piemontite] Martin et al. (2004)
ⓘ Praborna Mine	[Piemontite, Piemontite var: Strontium-bearing Piemontite] Das Mohs'sche Mineralsystem +1 other reference
Valtournenche Breuil-Cervinia ⓘ Motta di Pletè	[Piemontite] Piccoli et al. (2007)
ⓘ Plan Tendre	[Piemontite] Piccoli et al. (2007)
ⓘ Plateau Rosa Pass	[Piemontite] Piccoli et al. (2007)
ⓘ Cignana Lake (Tsignanaz Lake)	[Piemontite] Piccoli et al. (2007)
Calabria Cosenza Province Mormanno ⓘ Monte Cerviero mines (Mormanno mines)	[Piemontite] Sinisi et al. (2018)
Liguria Genoa Genoa Varenna Valley ⓘ Case Scotti	[Piemontite] Antofilli et al. (1983)
Ne ⓘ Cassagna Mine	[Piemontite] Redazionale (2005)
ⓘ Molinello Mine	[Piemontite] Balestra (2016)
Reppia ⓘ Gambatesa Mine	[Piemontite] Redazione (2005)
Statale ⓘ Scrava Mine (Statale Mine)	[Piemontite] Castellaro et al. (2023)
La Spezia Province Borghetto di Vara ⓘ Cerchiara Mine	[Piemontite] Palenzona et al. (1988)
Deiva Marina ⓘ Piazza Mine	[Zoisite var: Thulite] Antofilli et al. (1983)
ⓘ Framura	[Zoisite var: Thulite] Antofilli et al. (1983)
Maissana Mt. Alpe ⓘ Monte Alpe Mine	[Piemontite] Castellaro et al. (2011)
Savona Province Magliolo ⓘ Costa Balzi Rossi	[Piemontite] Castellaro-Kampf
Lombardy Sondrio Province Chiesa in Valmalenco ⓘ Tremogge Peak	[Zoisite var: Thulite]
Lanzada ⓘ Scerscen Valley	[Piemontite]
ⓘ Lower Scerscen Glacier	[Piemontite] Bedognè et al. (1993)
Torre di Santa Maria ⓘ Val Sora manganese outcrop	[Piemontite] Bedognè et al. (1993)
ⓘ Val Sora Quarry	[Piemontite] G.Guicciardi : Guida ai minerali della Val Malenco (1980)
Piedmont Cuneo Province Bellino ⓘ Maniglia Mt. Mine	[Piemontite] Piccoli et al. (2007) +1 other reference
Pontechianale ⓘ Lago Blu	[Piemontite] Piccoli (2002) +1 other reference
Metropolitan City of Turin Ceres ⓘ Vernetto Mine	[Piemontite] Zambonini (1922) +1 other reference
Voragno ⓘ Ladant	[Piemontite] Maletto et al. (2014)
ⓘ Monte di Voragno manganese occurrence	[Piemontite] Piccoli et al. (2007)
Corio ⓘ Colle Forcola	[Piemontite] Piccoli et al. (2007)
ⓘ Rio Bana	[Piemontite] Piccoli et al. (2007)
Lanzo Valleys Mezzenile ⓘ Rio Cenere	[Piemontite] Deidda et al. (2022)
Mattie ⓘ Sant'Anna	[Piemontite] Franchi (1897)
Mezzenile ⓘ Catelli	[Piemontite] Piccoli et al. (2007) +1 other reference
ⓘ Mompantero	[Piemontite] Pognante (1983)
Pragelato Troncea Valley ⓘ Beth Mine (Beth-Ghinivert deposit)	[Piemontite] Piccoli et al. (2007)
ⓘ Sparone	[Piemontite] Barresi et al. (2007)
ⓘ Apparè	[Piemontite] M.E. Ciriotti +1 other reference
ⓘ Feilongo	[Piemontite] Pognante et al. (1988)
ⓘ Rio dei Piani	[Piemontite] M.E. Ciriotti (05/04/2008)
Usseaux ⓘ Vallone dei Morti (Gran Serin)	[Piemontite] Piccoli et al. (2007)
Usseglio ⓘ Punta Chestassa	[Piemontite] Deidda et al. (2022)
Viù ⓘ Biolay	[Piemontite] Giovanni Fraccaro collection
ⓘ Col San Giovanni	[Piemontite] Piccoli et al. (2007)
ⓘ Punta Gensane	[Piemontite] Piccoli et al. (2007)
Verbano-Cusio-Ossola Province Valstrona Forno ⓘ Ravinella di Sotto Mine	[Piemontite] Savia et al. (2023)
Vercelli Province ⓘ Alagna Valsesia	[Piemontite] Piccoli et al. (2007)
Otro Valley ⓘ Feglierec Mine	[Piemontite] Bonino A. (1965) +1 other reference
Sardinia Sassari Province Calangianus ⓘ Furru e Conca Quarries	[Piemontite] Orlandi (2011)
Trentino-Alto Adige/Südtirol Trento Province San Giovanni di Fassa ⓘ Toal del Malinverno	[Zoisite var: Thulite] De Michele (1974)
Tuscany Lucca Province Stazzema ⓘ Mount Corchia	[Piemontite] Battaglia S. et al. (1977)
ⓘ Vagli Sotto	[Piemontite] Biagioni C. (Alpi Apuane, Lucca)
ⓘ Arnetola Valley	[Piemontite] Biagioni C. (Alpi Apuane, Lucca)
ⓘ Castagnola	[Piemontite] Biagioni C. (Alpi Apuane, Lucca)
ⓘ Eremo di San Viano	[Piemontite] Biagioni C. (Alpi Apuane, Lucca)
Massa-Carrara Province Carrara Monte Brugiana north slope ⓘ Monte Brugiana manganese mineralisation (Artana Mn deposit; Monte Brugiana - La Rocchetta)	[Piemontite] Bonazzi et al. (1992)
Metropolitan City of Florence Impruneta ⓘ Nalbi	[Zoisite var: Thulite] Brizzi G. (1996)
Pisa Province Castellina Marittima ⓘ Gonnellino stream ?	[Zoisite var: Thulite] Orlandi (2005)
Pomarance Monterufoli ⓘ Il Caggio (Monterufoli Cu mine)	[Zoisite var: Thulite] Orlandi (2005)
Volterra ⓘ Poggio del Cornocchio quarries ?	[Zoisite var: Thulite] Orlandi (2005)
Prato Province Prato ⓘ Monteferrato quarries	[Zoisite var: Thulite] Brizzi G. et al. (1996)
Siena Province Murlo La Befa ⓘ Crevolone Torrent gabbro outcrop	[Zoisite var: Thulite] C. Betti (2000)

Japan
Ehime Prefecture Iyo district Tobe-cho ⓘ Furumiya mine	[Piemontite] Nakagawa et al. (2009)
Niihama City Besshi ⓘ Besshi mine (Bessi mine)	[Piemontite] Introduction to Japanese Minerals (Geological Survey of Japan, 1970) +1 other reference
Ikadazu ⓘ Piemontite exposure	[Piemontite] Tsuboi (1936)
Ouzu City ⓘ Kamisugai mine	[Piemontite] Fukushima et al. (2005) +2 other references
ⓘ Mt Kannan	[Piemontite] Nishio-Hamane et al. (2016) +1 other reference
Saijo City ⓘ Kamogawa (Kamo river)	[Piemontite] MINAKAWA et al. (1987)
Shikokuchuo City Doi ⓘ Irazuyama (Iratsuyama)	[Piemontite] Introduction to Japanese Minerals (Geological Survey of Japan, 1970) +1 other reference
Iyomishima ⓘ Sarutagawa (Sarutasawa)	[Piemontite] - (n.d.)
ⓘ Sazare mine	[Piemontite] - (n.d.)
Fukui Prefecture Ono City ⓘ Nakatenjo deposit	[Zoisite var: Thulite] Nakamura +1 other reference
Fukuoka Prefecture Iizuka City ⓘ ~~Chikuho-machi~~	[Zoisite var: Thulite] Petrov (n.d.)
ⓘ Kanetake-mura	[Zoisite var: Thulite] Okamoto & Tanaka (1958)
Kasuya District ⓘ Sasaguri	[Zoisite var: Thulite] Masutomi Museum specimen (Kyoto)
Gifu Prefecture Hida City ⓘ Kamioka Mine	[Zoisite var: Thulite] Okuno (1964)
Gunma Prefecture Fujioka City ⓘ Tsukiyoshi ?	[Piemontite] Ohe Rikosha specimens
Hokkaidō Prefecture Okhotsk Subprefecture Kitami City ⓘ Kokuriki mine	[Piemontite] Togari et al. (1987)
Iwate Prefecture Kuji City Yamagata ⓘ Takamatsu mine	[Piemontite] - (n.d.)
Kanagawa Prefecture Hadano City ⓘ Dainichi mine	[Piemontite] Mineralogical Journal Vol. 17 (1994)
Kochi Prefecture Agawa District Ino ⓘ Kamoyama mine	[Piemontite] Nishio-Hamane et al. (2016)
ⓘ Asemi-gawa River area	[Piemontite] Masaki Enami (1986)
Nankoku city Ananai mine ⓘ Fukinaro deposit	[Piemontite] Nakagawa et al. (2009)
ⓘ Honomori deposit	[Piemontite] Nakagawa et al. (2009)
ⓘ Nagakawara deposit	[Piemontite] Nakagawa et al. (2009)
Nagasaki Prefecture Nagasaki City Kinkai-Tone-machi ⓘ Tone mine	[Piemontite] Masutomi Museum specimens +3 other references
Nishisonogi District ⓘ Muramatsu-mura	[Piemontite] Mem. Fac. Sci. et al. (1957)
Saitama Prefecture Chichibu City ⓘ Oyahana	[Piemontite] - (n.d.)
Chichibu District ⓘ Nagatoro	[Piemontite] - (n.d.)
ⓘ Sanbagawa metamorphic belt	[Piemontite] Banno (2000) +1 other reference
Shimane Prefecture Ochi District ⓘ Dohgamaru mine	[Piemontite] Chihiro Fukuda and Masahide Akasaka (2005)
Shizuoka Prefecture ⓘ Shizuoka City	[Zoisite var: Thulite] Nunes (n.d.)
Tokushima Prefecture ⓘ Hakuryu mine	[Piemontite] MINAKAWA et al. (1987)
Tokushima City ⓘ Bizan (Otakiyama)	[Piemontite] Masutomi Museum specimens +1 other reference
ⓘ Otakiyama manganese deposit	[Piemontite] Sadanaga et al. (1974)
Yoshinogawa City ⓘ Yamakawa-cho	[Piemontite] Yuuki Hasegawa specimen
Yamaguchi Prefecture Iwakuni City ⓘ Nishiki-cho	[Piemontite] Nishimura (1971)
Yamanashi Prefecture Minami-Alps City Kohsai ⓘ Ochiai mine	[Piemontite] A. Kato et al.

Kazakhstan
Akmola Region Bulandy District ⓘ Raigorodok deposit	[Piemontite] Kovalev et al. (2018)
Ulytau Region Karazhal ⓘ Ushkatyn deposits (Ushkatan)	[Piemontite] Evseev (1995)

Kosovo
Ferizaj District Štrpce (Shtërpcë) ⓘ Brezovica	[Piemontite] ABRAHAM et al. (1976)

Madagascar
Amoron'i Mania Ambatofinandrahana District Mangataboahangy ⓘ Volonandrongo (Volonondrongo)	[Zoisite var: Thulite] Collection Collection Musée National ...

Morocco
Drâa-Tafilalet Region Zagora Province Agdz Cercle Tansifte Caïdat ⓘ Tachgagalt Mine	[Piemontite] FAVREAU G. & DIETRICH J.E. (2006)

New Zealand
Otago Region Queenstown-Lakes District Arrow Junction ⓘ Arrow Junction Quarry	[Piemontite] C. Lemanski (6782CL) +1 other reference
Arrow River (Arrow Valley) ⓘ Manganese occurrences	[Piemontite] Hutton (1957)
Southland Region Invercargill City ⓘ Bluff	[Zoisite var: Thulite] Service (1937)
Tasman Region Cobb Valley ⓘ Cobb Asbestos Mine	[Zoisite var: Thulite] Stott (pers. notes)
Pikikiruna Range ⓘ Rameka Creek	[Zoisite var: Thulite] Thornton
West Coast Region Westland District ⓘ Haast River	[Piemontite] Cooper (1971)

North Macedonia
Čaška Municipality ⓘ Nežilovo	[Piemontite] Estep (1977) +1 other reference
Jakupica Mountains Babuna Valley ⓘ Babunaite-(Nd) type locality	[Piemontite] Galuskina et al. (2026)
ⓘ Kalugeri Hill	[Piemontite] Bermanec et al +2 other references
Prilep Municipality ⓘ Vitolište	[Piemontite] Altherr et al. (2017)

Norway
Agder ⓘ Arendal	[Zoisite var: Thulite] Mason (1976)
Øyestad ⓘ Klodeborg Mines	[Zoisite var: Thulite] Berlin (1850)
Birkenes Herefoss ⓘ Unnamed pegmatite	[Piemontite] Morton et al. (1963) +1 other reference
Bykle ⓘ Hovden	[Piemontite] Larsen (1978)
ⓘ Breivevatnet Pump Station	[Piemontite, Zoisite var: Thulite] Knut Edvard Larsen collection # MM-3779
ⓘ Hovdenuten manganese deposit	[Piemontite] Nordrum et al. (1981) +1 other reference
Grimstad Landvik ⓘ Hafsåsen	[Piemontite] Neumann (1985)
Innlandet Lom ⓘ Grotågjelet	[Zoisite var: Thulite] Garmo et al. (2017)
Otta River ⓘ Søre Lia Quarry	[Piemontite, Zoisite var: Thulite] Raade (1972) +2 other references
ⓘ Søre Illåbreen	[Zoisite var: Thulite] Garmo (1974)
ⓘ Store Memurutind	[Zoisite var: Thulite] Wilke (1976)
ⓘ Viki	[Zoisite var: Thulite] - (n.d.)
Skjåk Dønfoss ⓘ Øyberget Hydropower Station	[Piemontite] Garmo (2006)
Stange ⓘ Gåsvann Thulite Occurrence	[Zoisite var: Thulite] Rui (1992)
ⓘ Orrkjølen	[Piemontite, Zoisite var: Thulite] Rui (1991)
Møre og Romsdal Fjord Norddal Tafjord ⓘ Jimdalen	[Zoisite var: Thulite] Ålesund Geologiforening collection (seen by Knut Edvard Larsen 24-05-2016)
Kristiansund ⓘ Frei	[Piemontite] Garmo et al. (2017)
Vanylven ⓘ Rindeteigsvegen	[Zoisite var: Thulite] Larsen (2019)
Nordland Hamarøy ⓘ Sørfjord I Hydropower Station	[Piemontite] Garmo et al. (2017)
ⓘ Rødøy	[Zoisite var: Thulite] Wiik (1989)
Østfold Halden Fjell ⓘ Korsetgangen Mine ?	[Piemontite] Hansen (1985)
Rogaland Lund Heskestad ⓘ ~~Askekor~~	[Piemontite] Morton et al. (1963)
Sandnes Seldal ⓘ Piemontite occcurrence	[Piemontite] Knut Edvard Larsen collection # 726 (analyzed, Tony Doré pers.com May 1985)
Telemark Hjartdal Sauland Kleppan ⓘ Øvstebø	[Piemontite, Zoisite var: Thulite] Neumann et al. (1955)
Notodden Heddal ⓘ Roadcut	[Zoisite var: Thulite] Larsen (2016)
Tokke Botnedal ⓘ Brandsnuten manganese deposit	[Piemontite] van der Wel (1999)
Tjostolvflaten ⓘ Roadcut near Tjostolvflaten	[Piemontite, Zoisite var: Thulite] Garmo et al. (2017)
Trøndelag Indre Fosen Leksvik Hindremseter ⓘ Leksvik Thulite Quarry	[Piemontite, Zoisite var: Thulite] Nordrum (2005)
Lierne ⓘ Austre Brandsfjellet	[Zoisite var: Thulite] Garmo et al. (2017) +1 other reference
Oppdal ⓘ Åmotsdalen	[Piemontite, Zoisite var: Thulite] Witsø (1995)
ⓘ Drivdalen	[Zoisite var: Thulite] Witsø (1995)
ⓘ Lønset	[Piemontite] Witsø (1995)
Orkland Snillfjord Åstfjorden ⓘ Mjønes Tunnel	[Piemontite, Zoisite var: Thulite] Størseth (2019)
ⓘ Trondheim	[Zoisite var: Thulite] Mason (1976)
Vestland Luster Ornes ⓘ Piemontite locality	[Piemontite] Dalen et al. (2008)
Sunnfjord Jølster ⓘ Skei	[Zoisite var: Thulite] Nordrum (2005)

Pacific Ocean
Conical Seamount ⓘ Deep Sea Drilling Project Hole 779A	[Zoisite var: Thulite] Fryer et al. (1992)

Poland
Lower Silesian Voivodeship Kłodzko County Gmina Bystrzyca Kłodzka ⓘ Marcinków ?	[Piemontite] Lis et al. (1986)
Świdnica County Gmina Marcinowice Wirki ⓘ 'Wiry' magnesite mine	[Zoisite var: Thulite] Harańczyk C. (1970)
Wrocław County Gmina Sobótka Nasławice ⓘ Serpentinite quarry	[Zoisite var: Thulite] Galuskin et al. (2003)
Zgorzelec County Gmina Zgorzelec ⓘ Zgorzelec ?	[Piemontite] Lis et al. (1986)

Romania
Caraş-Severin County Brebu ⓘ Delineşti deposit	[Piemontite] Hîrtopanu et al. (2003)
Maramureș County Târgu Lăpuș ⓘ Răzoare	[Piemontite] Udubasa et al. (1996) +1 other reference

Russia
Bashkortostan ⓘ Bikkulovskoe deposit	[Piemontite] Brusnitsyn et al. (2009)
Sibay ⓘ Yuzhno-Faizulinskoe Mn deposit (South Faizuly deposit; South Faizulino deposit)	[Piemontite] Brusnitsyn (2006)
Khakassia (Republic of Khakassia) Askizsky Rayon Askiz ore district ⓘ Chapsordag deposit	[Piemontite] Kassandrov et al. (2009)
ⓘ Malosyrsky deposit	[Piemontite] Kassandrov et al. (2009)
Khanty-Mansi Autonomous Okrug Berezovo district Saranpaul ⓘ Dodo Mine	[Piemontite] Burlakov (1995)
Komi Republic Kozhim River Basin Maldynyrd range (Maldy-nyrd range) ⓘ Al'kesvozh river canyon (Al'kes-vozh)	[Piemontite] Pavel M. Kartashov (n.d.)
ⓘ Chudnoe Pd-Au deposit	[Piemontite] Pavel M. Kartashov (n.d.)
Grubependity Lake ⓘ Grubependity Lake cirque	[Piemontite] Pavel M. Kartashov (n.d.)
ⓘ Sakha	[Piemontite] [World of Stones 12:49]
Tyumen Oblast Tel'pos-Iz Mt ⓘ Nyarta-Syu-Yu River	[Piemontite] Pekov (1998)
Ural Mountains ⓘ Polar Urals	[Piemontite] Hyršl (1992)

Slovakia
Košice Region Spišská Nová Ves District Rudňany ⓘ RHV-1 borehole	[Piemontite] Myšľan et al. (2026)

South Africa
Gauteng City of Tshwane Metropolitan Municipality ⓘ Mamelodi Quarry	[Piemontite] Wilson
Limpopo Mopani District Municipality Ba-Phalaborwa Local Municipality Murchison Range Gravelotte ⓘ Consolidated Murchison Mines	[Piemontite] Jako Schonken Collection
ⓘ Murchison Mine	[Piemontite] Jako Schonken specimen
Vhembe District Municipality Musina Local Municipality ⓘ Musina	[Piemontite] Cairncross (1991)
ⓘ Messina Mine	[Piemontite] Cairncross et al. (1995)
Northern Cape John Taolo Gaetsewe District Municipality Joe Morolong Local Municipality Hotazel ⓘ Hotazel Mine	[Piemontite] Wilson et al. (1978)
ⓘ Wessels Mine	[Piemontite] Cairncross et al. (1995)
ZF Mgcawu District Municipality Tsantsabane Local Municipality Postmasburg ⓘ Kolomela Mine	[Piemontite] Kumba Iron Ore
ⓘ Unnamed borehole	[Piemontite] Costin et al. (2014) +1 other reference

South Korea
Gangwon Province Samchok City Puksam-myon ⓘ Samhwa Mine ?	[Zoisite var: Thulite] Kinosaki (1941)

Spain
Andalusia Huelva Los Marines ⓘ Sierra de Aracena	[Piemontite] Jiménez-Millán et al. (1993) +1 other reference
Málaga ⓘ Ojén	[Piemontite] www.lrz.de (n.d.)
Canary Islands Santa Cruz de Tenerife Province Tenerife Granadilla de Abona ⓘ ~~La Mareta~~	[Piemontite] Dill et al. (2023)
Community of Madrid ⓘ Somosierra ?	[Zoisite var: Thulite] ANGEL ORTIZ MAELLAS AOM

Sweden
Gävleborg County Ljusdal ⓘ Los	[Piemontite]
Norrbotten County Jokkmokk ⓘ Ultevis	[Piemontite] Roy (1972)
ⓘ Rakten	[Piemontite] Collection of Naturhistoriska Riksmuseet i Stockholm (The Natural History Museum)
ⓘ Sörhårås	[Piemontite] Ödman (1950)
ⓘ Stuor-Njåske	[Piemontite] Wilke Band 4 Skandinavien
ⓘ Upper manganese ravine	[Piemontite] Sandström (1997)
ⓘ Tjaktjajaure	[Piemontite] Augsten (2010)
ⓘ Tjålme	[Piemontite] Wilke Band 4 Skandinavien
Tjatisvare ⓘ Tjatjisvaratj beach	[Piemontite] Nysten et al. (2021)
Örebro County Hällefors Grythyttan ⓘ Sjögruvan	[Piemontite]
Lindesberg Nyberget ⓘ Nyberget ore field	[Piemontite] Roy (1972)
ⓘ Mangruvan	[Piemontite]
ⓘ Slöjdartorp	[Piemontite] Koark (1970)
Skåne County Bromölla Näsum ⓘ Västanå Iron Mine (Westanå Mine)	[Piemontite] Gatedal (n.d.)
Uppsala County Östhammar Dannemora ⓘ Dannemora Mine	[Piemontite] Åberg (2015)
Värmland County Filipstad Långban Ore District ⓘ Långban Mine	[Piemontite] Holtstam et al. (1999)
ⓘ Garden dump	[Piemontite] Nysten (2003)
Nordmark mining district Jakobsberg ore field ⓘ Jakobsberg Mine	[Piemontite] Holtstam et al. (1993)
Västernorrland County Kramfors ⓘ Berghamn	[Piemontite] Sandström (1999)
ⓘ Norrklippen	[Piemontite] Alan Goldstein photo & specimen (collected by Axel Österlöf)
Västmanland County Skinnskatteberg ⓘ Kockgruvan ?	[Zoisite var: Thulite] Jansson (1991)
Västra Götaland County Stenungsund ⓘ E6 Road cut	[Zoisite var: Thulite] Lyckberg (1990)

Switzerland
Grisons Albula Region Surses Tinizong (Tinzen) ⓘ Alp digl Plaz deposit	[Piemontite] Geiger T. (1948) +1 other reference
Err valley ⓘ Parsettens Alp	[Piemontite] Stalder et al. (1998)
ⓘ Falotta	[Piemontite, Piemontite var: Strontium-bearing Piemontite] Roth et al. (2013)
Maloja Region Bregaglia Upper Val Bregaglia Maroz Valley ⓘ Piz Cam	[Piemontite] Wenk et al. (1978) +2 other references
Val Forno ⓘ Pizzi dei Rossi	[Piemontite] Stalder et al. (1998)
Plessur Region Arosa Langwies ⓘ Litzirüti	[Piemontite] Geiger T. (1948)
Viamala Region Rheinwald Splügen ⓘ Tanatz Alp	[Piemontite] Roth et al. (2011)
Ticino Vallemaggia Cerentino ⓘ Maurino Quarry	[Piemontite, Zoisite var: Thulite] Stalder et al. (1998)
Cevio ⓘ Pizzo Alzasca	[Piemontite] ...
Valais Entremont Val de Bagnes Charmotane ⓘ Mt. Durand	[Piemontite] Ansermet et al. (2025)
Mauvoisin ⓘ Lancey bridge	[Piemontite] Stalder et al. (1998)
Goms Binn Gischi glacier (incl. Gischihorn) ⓘ Gischi glacier REE-mineralization	[Piemontite] Cuchet et al. (2023)
Visp Saas-Fee Fee Glacier ⓘ Felskinn	[Piemontite] Stalder et al. (1998)
Täsch Täsch Valley ⓘ Sparrenflue	[Piemontite] Stalder et al. (1998)

Tajikistan
Sughd Mastchoh District Altyn-Topkan ore field (Zarnisor ore field) ⓘ Altyn-Topkan deposit (Altyntopkan deposit; Altyn-Topkan Mine; Zarnisor deposit; Zarnisori Shimoli deposit; Northern Zarnisor deposit)	[Piemontite] Xinjiang Tacheng International Resources Ltd.

Tanzania
Dodoma Region Kongwa District Kongwa ⓘ Mautia Hill	[Piemontite] ...

Turkey
Bursa Province Harmancık District ⓘ Bektaşlar	[Piemontite] Okay (1997)
Denizli Province Tavas Ulukent ⓘ Ulukent Mn deposit	Öztürk (1997)
Kütahya Province Emet District Kayi Köy ⓘ Mn deposit	[Piemontite] Müller (1954)
Niğde Province Ulukisla District ⓘ Horoz	[Piemontite] Sunkari et al. (2025)

UK
Wales Gwynedd Aberdaron Rhiw ⓘ Benallt Mine	[Piemontite] BMS Collection
Llanddeiniolen ⓘ Dinorwic Quarry ?	[Piemontite]

USA
Alabama Lee County ⓘ Whatley Mill gneiss	[Zoisite var: Thulite] Cook et al. (1982)
Arizona Cochise County ⓘ Ash Canyon	[Piemontite] Garske (n.d.)
Cochise Mining District Gunnison Copper Project Johnson Camp ⓘ Republic Mine	[Zoisite var: Thulite] Cooper (1957) +2 other references
Sulphur Springs Valley Pearce area ⓘ Pat Hills	[Piemontite] Lausen (1927) +2 other references
Gila County Banner Mining District Christmas ⓘ Christmas Mine	[Zoisite var: Thulite] Perry (1969) +1 other reference
Hayden area Chilito ⓘ 79 Mine	[Zoisite var: Thulite] Anthony et al. (1995)
Maricopa County Phoenix Phoenix Mountains ⓘ Piestewa Peak area	[Piemontite] Anthony et al. (1995)
Pima County Comobabi Mountains Kovaya Hills ⓘ Kovaya Hills area	[Piemontite] Bideaux et al. (1960) +1 other reference
ⓘ Northern Comobabi Mountains	[Piemontite] Bideaux et al. (1960) +1 other reference
Old Baldy Mining District ⓘ Madera Canyon area	[Piemontite] Guild (1935) +2 other references
Tucson Mountains Amole Mining District ⓘ Tucson Mountain Park	[Piemontite] Guild (1935) +2 other references
ⓘ Juan Santa Cruz picnic grounds	[Piemontite] Guild (1935) +1 other reference
Vail ⓘ Vail area	[Piemontite] Anthony et al. (1995)
Pinal County Casa Grande Mining District Casa Grande ⓘ Casa Grande area	[Piemontite] Anthony et al. (1995)
Yavapai County Bradshaw Mountains (Bradshaw Range) Prescott Mining District ⓘ Prescott - NW of	[Piemontite] Krieger (1965) +1 other reference
California Inyo County Panamint Range (Panamint Mountains) Cottonwood Mountains Ubehebe Mining District Ubehebe Peak ⓘ Unnamed Thulite occurrence [1]	[Zoisite var: Thulite] McAllister (1955) +2 other references
Saline Valley ⓘ Unnamed Thulite occurrence [2]	[Zoisite var: Thulite] Murdoch et al. (1936) +3 other references
White Mountains Black Mountain ⓘ Westgard prospect	[Zoisite var: Thulite] - (n.d.)
Kern County Lost Hills (Lost Hill) ⓘ Lazard area [1]	[Piemontite] Reed (1927) +2 other references
ⓘ Lazard area [2]	[Piemontite] Reed (1927) +1 other reference
Lassen County Haskell Peak ⓘ Unspecified Mn occurrence [2]	[Piemontite] Murdoch (1966)
ⓘ Los Angeles County	[Piemontite] AmMin 20:737
Big Pines Mine Gulch ⓘ Unnamed Mn occurrence	[Piemontite] Sharp (1959) +3 other references
Mount Baldy District Big Pines San Gabriel River Prairie Fork ⓘ Unnamed ravine	[Piemontite] Murdoch (1966) +2 other references
Newhall ⓘ Bouquet Canyon-Texas Canyon junction area	[Piemontite] Simonson (1935) +1 other reference
Santa Catalina Island Escondido Canyon ⓘ North of Orizaba Peak (Mount Orizaba)	[Piemontite] Bailey (1940) +3 other references
Madera County Agnew Meadows Olaine Lake ⓘ Agnew Meadow Mine (Agnew Meadow Manganese prospect/deposit; Mammoth Lakes)	[Piemontite] Trask (1950) +2 other references
Ritter Range Garnet Lake ⓘ Unnamed Mn-Garnet occurrence (1)	[Piemontite] Murdoch (1966) +2 other references
Minarets Mining District (Mountain Mining District; Raymond Mining District; Minaret Mining District) ⓘ Shadow Lake	[Piemontite] Am Min 18:493
ⓘ Unnamed Mn-Asbestos-Zeolite occurrence (1)	[Piemontite] Mayo (1932) +4 other references
ⓘ Unnamed Mn occurrence (2)	[Piemontite] Mayo (1932) +2 other references
Mariposa County West Belt Granite Springs Mining District Granite Springs ⓘ Caldwell Mine (Daly Mine)	[Piemontite] Taliaferro (1943a) +3 other references
Mono County Mount Baldwin ⓘ Unspecified W occurrence (1)	[Zoisite var: Thulite] Kerr (1946) +1 other reference
Monterey County ⓘ Monterey Bay	[Piemontite] Bradley (1933) +1 other reference
Orange County San Juan Capistrano ⓘ San Juan Capistrano Point area	[Piemontite] its nature and origin: University of ... +2 other references
Plumas County Moccasin ⓘ Lakeview Valley VI Mine (Western Manganese Mine; Noble lease; EW; Braito Mine; Dixie Creek; Feather River; Iron Dyke Mine)	[Piemontite] Taliaferro (1943) +4 other references
Riverside County Big Maria Mountains Black Hill ⓘ Lion's Den Copper claim (Little Mountain claims)	[Piemontite] CDMG OFR 94-11 " Mineral Land ...
Jurupa Valley Crestmore Crestmore quarries Sky Blue Hill ⓘ Commercial Quarry	[Zoisite var: Thulite] Woodford et al. (1941)
Jurupa Mountains ⓘ Jensen Quarry	[Zoisite var: Thulite] Cooney (1956) +3 other references
ⓘ Palen Mountains	[Piemontite] Alfors (1964) +3 other references
Palm Springs ⓘ Garnet Hill	[Zoisite var: Thulite] Alfredo Petrov specimens (PXRD pattern = zoisite)
Whitewater (White Water) Painted Hill ⓘ Unnamed Mn occurrence [3]	[Piemontite] Bradley (1942) +3 other references
ⓘ Unnamed Piemontite occurrence [1] (San Gorgonio Pass)	[Piemontite] Smith et al. (1967)
San Bernardino County Belleville Mining District Rodman Mountains Sidewinder Mountain ⓘ Unnamed Mn occurrence [4]	[Piemontite] Bowen et al. (1954) +2 other references
Cajon Cajon Pass ⓘ Unnamed Mn occurrence [13]	[Piemontite] Webb (1939) +2 other references
Lucerne Valley Limestone District Lucerne Valley ⓘ White Knob Quarry	[Piemontite] Howard H. J. (2011)
Lytle Creek District Lytle Creek [town] Coldwater Canyon ⓘ Unnamed Mn occurrence [2]	[Piemontite] Mayo (1933) +3 other references
Victorville East of Victorville ⓘ Unspecified Mn occurrence [3]	[Piemontite] Bowen et al. (1954) +1 other reference
San Diego County ⓘ Pacific Beach	[Piemontite] Rogers (1912) +1 other reference
Tulare County Lindsay ⓘ East of Lindsay [2 miles]	[Piemontite] Alfors (1964) +1 other reference
ⓘ East of Lindsay [2½ miles]	[Piemontite] Alfors (1964) +1 other reference
Colorado Boulder County Wallstreet ⓘ Unnamed pegmatite	[Piemontite] Eckel et al. (1997)
Fremont County Cotopaxi Mining District Cotopaxi Mine Gulch ⓘ Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill)	[Zoisite var: Thulite] Eckel et al. (1997)
Guffey Mining District (Freshwater Mining District) Currant Creek Area ⓘ Four Claim Group	[Zoisite var: Thulite] - (2005)
Gunnison County Dorchester Mining District Taylor Park ⓘ Italian Mountain	[Piemontite] Eckel et al. (1997)
White Earth Mining District (Powderhorn Mining District) ⓘ Iron Hill deposit	[Piemontite] Larsen (1942)
Jefferson County Bergen Park area ⓘ Creswell Mine	[Piemontite] Eckel et al. (1997)
Ouray County ⓘ Idarado Mine	[Piemontite, Zoisite var: Thulite] Rocks & Min.:59:34 & 64:144.
Sneffels Mining District Imogene Basin ⓘ Camp Bird Mine	[Piemontite] Rocks & Min.:62:9 +3 other references
Park County Guffey Mining District ⓘ Copper King Mine (Copper Queen Mine)	[Zoisite var: Thulite] Eckel et al. (1997)
ⓘ Guffey District; West Occurrence	[Zoisite var: Thulite] - (2005)
Tarryall Springs Mining District (Puma City) ⓘ Victory Prospect (Victory Group)	[Zoisite var: Thulite] Eckel et al. (1997)
Routt County Clark ⓘ Greenville Mine (Greenville Shaft prospect)	[Piemontite] Eckel et al. (1997)
Connecticut Hartford County Burlington ⓘ ~~State Route 179 road cut (State Route 4 road cut Collinsville)~~	[Zoisite var: Thulite] Januzzi et al. (1976) +1 other reference
Litchfield County Thomaston ⓘ Reynolds Bridge	[Zoisite var: Thulite] Yedlin (1964)
Middlesex County Haddam Haddam Neck ⓘ Connecticut Yankee atomic power plant	[Zoisite var: Thulite] Weber et al. (1995)
ⓘ Hazen quarry (Epidote locality)	[Piemontite] Davis (1901) +1 other reference
ⓘ Thulite locality	[Zoisite var: Thulite] Foye (1926)
ⓘ District of Columbia (Washington D.C.)	[Piemontite] Bernstein (1976)
Georgia ⓘ DeKalb County	[Zoisite var: Thulite] Ransom (1974)
Stone Mountain-Lithonia Mining District ⓘ Ethel quarry	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Gwinnett County	[Piemontite] gamineral.org (2000)
Maryland Baltimore City Stony Run ⓘ Wright Quarry	[Zoisite var: Thulite] Ostrander et al. (1940)
Montgomery County Rockville ⓘ Hunting Hill Quarry	[Zoisite var: Thulite] Jack Nelson et al. (See descriptive notes for quarry for reference citations)
ⓘ Washington County	[Piemontite] Stuart Herring Collection
Massachusetts Middlesex County ⓘ Newton	[Piemontite] Gleba (2008)
Norfolk County ⓘ Brookline	[Piemontite] Gleba (2008)
Missouri Iron County Annapolis ⓘ Annapolis Roofing Granule Plant	[Piemontite] Sherwood et al. (1998)
Montana Beaverhead County ⓘ Camp Creek Corundum Occurrence	[Zoisite var: Thulite] Am Min 49:430-435
Jefferson County Pipestone Mining District Delmoe Lake Road occurrences ⓘ Delmoe Road skarn	[Zoisite var: Thulite] Gibson (2018)
Nevada Churchill County Westgate Mining District ⓘ Westgate Mine	[Zoisite var: Thulite] Castor et al. (2004)
Douglas County Pine Nut Mountains Red Canyon Mining District ⓘ Four Clovers Mine (Lapis Nevada Quarry; Walker property [?])	[Zoisite var: Thulite] Castor et al. (2004)
Eureka County Eureka Mining District Ruby Hill ⓘ Rogers tunnel	[Zoisite var: Thulite] - (2005)
Humboldt County Osgood Mountains Potosi Mining District Adam Peak ⓘ Getchell Mine	[Piemontite] Castor et al. (2004)
Lyon County Singatse Range Yerington Mining District Ludwig ⓘ Ludwig Gypsum Mine	[Piemontite] Castor et al. (2004)
ⓘ Unnamed prospect [2]	[Zoisite var: Thulite] Castor et al. (2004)
Mineral County Fitting Mining District ⓘ Ryan Canyon	[Zoisite var: Thulite] Castor et al. (2004)
Gabbs Valley Range Santa Fe District ⓘ New York Canyon	[Zoisite var: Thulite] Castor et al. (2004)
Mountain View Mining District ⓘ White Mountain	[Zoisite var: Thulite] Castor et al. (2004)
Rawhide Mining District ⓘ Grutt Brothers mine	[Piemontite] Castor et al. (2004)
Pershing County Black Diablo Mining District ⓘ Black Diablo Mine	[Piemontite] - (2005)
Washoe County Hallelujah Junction area Petersen Mountain ("Peterson Mountain"; Hallelujah Junction [sic]) ⓘ Unnamed Piemontite occurrence (1)	[Piemontite] Castor et al. (2004)
Peavine Mining District Peavine Peak (Peavine Mountain) ⓘ Yuba Cañon (Yuba Canyon)	[Piemontite] Mineralogical Society of America - ... +1 other reference
White Pine County Ward Mining District ⓘ Ward Mine	[Zoisite var: Thulite] - (2005)
White Pine Mining District ⓘ Copper Belt	[Zoisite var: Thulite] - (1976)
ⓘ Mount Hamilton	[Zoisite var: Thulite] Castor et al. (2004)
New Jersey Sussex County Ogdensburg Sterling Hill ⓘ Sterling Mine	[Piemontite] Jenkins et al. (1) +1 other reference
New Mexico Grant County ⓘ Hanover-Fierro Mining District	[Piemontite] Northrop et al. (1996)
Sierra County ⓘ Iron Mountain No. 2 District	[Piemontite, Zoisite var: Thulite] Northrop et al. (1996)
ⓘ Discovery Gulch	[Zoisite var: Thulite] Northrop et al. (1996)
Taos County ⓘ Glenwoody District	[Piemontite, Zoisite var: Thulite] Northrop et al. (1996)
ⓘ Picuris Mountains	[Zoisite var: Thulite] Northrop et al. (1996)
Pilar ⓘ Pilar Cliffs	[Piemontite] New Mexico Bureau of Geology Mineral ...
ⓘ Picuris District	[Zoisite var: Thulite] Northrop et al. (1996)
ⓘ Harding Mine	[Piemontite, Zoisite var: Thulite] Northrop et al. (1996)
ⓘ Pilar Wall Mine	[Piemontite] New Mexico Bureau of Geology Mineral ...
ⓘ North Carolina	[Piemontite]
Avery County Banner Elk ⓘ May-Meade Quarry	[Zoisite var: Thulite] Wilson et al. (1978)
ⓘ Emmons Knob Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Meadow Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Slippery Elm Mine	[Zoisite var: Thulite] Lesure (1968)
Chatham County Chestnut Hill Quarry ⓘ Silk Hope zone	[Piemontite] Stoddard
Haywood County ⓘ Putnam Mine	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Macon County	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Mitchell County	[Zoisite var: Thulite] Mason (1976)
Cane Creek Section Bakersville Pizzle Mtn ⓘ Cloudland Mine	[Zoisite var: Thulite] Schaller et al. (1942)
Crabtree Creek ⓘ Bearden Mine (Bear Rock; Murphy Falls Mine)	[Zoisite var: Thulite] - (2005)
ⓘ Carolina Mineral Company No. 29 Mine	[Zoisite var: Thulite] - (2005)
ⓘ Carolina Mineral Company No. 6 Mine	[Zoisite var: Thulite] - (2005)
ⓘ George Young Mine	[Zoisite var: Thulite] - (2005)
ⓘ Glenn Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Hall and Boone Mine	[Zoisite var: Thulite] - (2005)
ⓘ Silvers Ridge Mine	[Zoisite var: Thulite] - (2005)
ⓘ Davis Mine	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Flat Rock Mine (Flat Rock pegmatite)	[Zoisite var: Thulite] Dana 6:515 +1 other reference
ⓘ Googrock Mine	[Zoisite var: Thulite] Roger Howell Collection
ⓘ Gouges Creek Mine	[Zoisite var: Thulite] Lesure (1968)
Hawk-Bakersville ⓘ Hawk Mine	[Zoisite var: Thulite] Dana 6:1077 +1 other reference
ⓘ Jase Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ No.12 Mine	[Zoisite var: Thulite] American Mineralogist 27 (7) +1 other reference
Penland ⓘ Deer Park Mine	[Zoisite var: Thulite] Streeter (2003)
ⓘ ~~Deer Park No. 2 Mine~~	[Zoisite var: Thulite] Richard C. Erd
ⓘ Deer Park No. 5 Mine	[Zoisite var: Thulite] American Mineralogist 24 (7) +1 other reference
ⓘ Peterson Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Pine Mountain (Pine Mountain Mine)	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Pink Mine	[Zoisite var: Thulite] - (n.d.)
ⓘ Press Buchanan Mine	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Putman Mica Mine	[Zoisite var: Thulite] American Mineralogist 27 (7) +1 other reference
Spruce Pine ⓘ McKinney Mine (Power Mill Creek Mine)	[Zoisite var: Thulite] - (2005)
ⓘ Smith Mine	[Zoisite var: Thulite] Schaller et al. (1942)
Swain County Bryson City Feldspar Mining District ⓘ Carson Kaolin and Feldspar Mines (Hill Mine)	[Zoisite var: Thulite] - (2005)
Yancey County Burnsville Hurricane Mountain ⓘ Little Ray Mica Mine	[Zoisite var: Thulite] Richard James Jacquot
ⓘ Ray Mica Mine ?	[Zoisite var: Thulite] Richard James Jacquot et al. (1968)
Celo ⓘ Charlie Young Mine	[Zoisite var: Thulite] - (2005)
ⓘ Gibb's Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Henry Grindstaff No. 1 Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ John Edge Mine	[Zoisite var: Thulite] - (2005)
Micaville ⓘ Fanny Gouge Mine ?	[Zoisite var: Thulite] Richard C. Erd
ⓘ Old Charles Mine	[Zoisite var: Thulite] Rocks & Min.: 60:99.
ⓘ Sally Knob Mine	[Zoisite var: Thulite] - (2005)
ⓘ Spider Mine	[Zoisite var: Thulite] Schaller et al. (1942)
ⓘ Woody's Ridge Mine	[Zoisite var: Thulite] - (2005)
Crabtree Creek ⓘ Buckeye Mine	[Zoisite var: Thulite] - (2005)
ⓘ James Mine	[Zoisite var: Thulite] - (2005)
Day Book ⓘ Green Mountain Mine	[Zoisite var: Thulite]
ⓘ Johnson's Cove Mine	[Zoisite var: Thulite] Lesure (1968)
ⓘ Tolley Bend Mine	[Zoisite var: Thulite] Lesure (1968)
Pennsylvania Adams County Hamiltonban Township ⓘ Glatfelter Farm	[Piemontite] A.Mathauser collection
ⓘ Culp Ridge	[Piemontite] Stuart Herring
ⓘ Russel and Bechtel Mines	[Piemontite] Peter Cristofono collection
Iron Springs ⓘ Pine Mountain	[Piemontite] Gordon (1922)
Menallen Township ⓘ Wenksville	[Piemontite] The Geology and Mineral Resources of ...
Delaware County Ridley Township Leiperville ⓘ Deshong's Quarry	[Zoisite var: Thulite] Rocks & Min.:59:109-120.
Philadelphia County Philadelphia ⓘ Fairmount Park	[Zoisite var: Thulite] Gordon (1922)
Rhode Island Providence County Burrillville Harrisville ⓘ Spring Lake	[Zoisite var: Thulite] Miller (1971)
Oakland ⓘ State Route 102 road cut	[Zoisite var: Thulite]
ⓘ Cumberland	[Piemontite] Miller (1971)
ⓘ San Juan Mountains	[Piemontite] Eckel et al. (1997)
South Dakota Lawrence County Galena Mining District Roubaix ⓘ Obsidian	[Piemontite] Roberts et al. (1965)
Texas Llano County ⓘ Horse Mountain	[Piemontite] Smith (1991)
Utah Beaver County Granite Mining District ⓘ Miller Mine	[Zoisite var: Thulite] Bullock (1981)
Virginia Bedford County Moneta-Forest Egypt Mines ⓘ Seaboard Mine (Newman Mine)	[Zoisite var: Thulite] Rocks & Min.: 60:165.
ⓘ Nance Mine	[Zoisite var: Thulite] Dietrich (1990)
Otter Hill ⓘ Mitchell Mine (Hottinger Mine)	[Zoisite var: Thulite] Dietrich (1990)
ⓘ Wheatley Pegmatite Mine (Big Hicks Mine; Moneta Mine)	[Zoisite var: Thulite] Rocks & Min.: 60: 165.
Halifax County ⓘ Hyco Formation	[Piemontite] Dietrich (1990)
Nelson County Piney River ⓘ Piney River Quarry	[Zoisite var: Thulite] Dietrich (1990)
Washington King County Snoqualmie Mining District Hansen Creek area ⓘ Scout Patrol Peak	[Piemontite] self collected
Kittitas County ⓘ Felsman	[Zoisite var: Thulite] - (2005)
Okanogan County ⓘ Tunk Creek	[Zoisite var: Thulite] Cannon (1975) +1 other reference
Pend Oreille County Metaline Mining District ⓘ Metaline Falls	[Zoisite var: Thulite] Schaller et al. (1942)
Wisconsin Dodge County ⓘ Waterloo quarry (Michels Materials Waterloo quarry; Portland Quarry)	[Zoisite var: Thulite] William S. Cordua collection

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