	2	3	4
SiO₂	40.65 %	42.86 %	40.43 %
TiO₂		0.14 %
Al₂O₃	19.48 %	17.79 %	20.21 %
FeO	16.77 %		16.59 %
MnO
MgO	7.15 %	14.05 %	6.95 %
CaO	11.92 %	10.99 %	11.18 %
Na₂O	1.39 %	1.86 %	1.94 %
K₂O		0.17 %
P₂O₅		0.02 %
V₂O₃		0.01 %
Cr₂O₃		0.14 %
Mn₂O₃*		0.14 %
Fe₂O₃*		8.83 %
NiO		0.03 %
SrO		0.02 %
H₂O (by stoichiometry)		2.08 %
Total:	97.36 %	99.13 %	97.3 %

Empirical formulas:

Sample ID	Empirical Formula
1	A(Na_0.29K_0.08)_?=0.37 B(Ca_1.69Fe²⁺_0.11Mn²⁺_0.02Na_0.18)_?=2.00C(Fe²⁺_1.84Mg_1.54Al_1.33Fe³⁺_0.24V³⁺_0.01Ti_0.04)_?=5.00 T(Si_6.15Al_1.85)_?=8.00O₂₂
2	Na_0.28 (Na_0.12Ca_1.88)_Σ2.00 ( Mg_1.57Fe²⁺_1.58Fe³⁺_0.49Al_1.37)_Σ5.00(Al_2.02Si_5.98)_Σ8.00O₂₂OH₂
3	(Na_0.18K_0.03◻_0.79)(Ca_1.67Na_0.33)(Mg_2.97Al_1.04Fe³⁺_0.94Mn³⁺_0.02Cr_0.02Ti_0.02)[Si_6.07Al_1.93O₂₂]([OH]_1.97O_0.03)
4	Na_0.31 (Na_0.24Ca_1.76)_Σ2.00 ( Mg_1.52Fe²⁺_1.50Fe³⁺_0.54Al_1.44)_Σ5.01(Al_2.06Si_5.94)_Σ8.00O₂₂OH₂

Sample references:

ID	Type	Locality	Reference	Notes
1	Type Specimen	B.G.P. Granite quarry, La Clarté, Perros-Guirec, Lannion, Côtes-d'Armor, Brittany, France	Oberti, Roberta, Boiocchi, Massimo, Hawthorne, Frank C., Ciriotti, Marco E. (2018) Ferro-tschermakite from the Ploumanac'h granitic complex, Brittany, France: mineral description. European Journal of Mineralogy, 30 (1) 171-176 doi:10.1127/ejm/2018/0030-2700
2	54/rim	Kovalo eclogites, Kechros, Arriana, Rhodope, Eastern Macedonia and Thrace, Greece	Mposkos, E.; Baziotis, I.; Proyer, A. (2011) Pressure–temperature evolution of eclogites from the Kechros complex in the Eastern Rhodope (NE Greece). International Journal of Earth Sciences, 101 (4). 973-996 doi:10.1007/s00531-011-0699-2	EMPA analysis of an kelyphitic amphibole from a retrogressed eclogite.
3	pt. 16	Corundum locality, Anavoha South, Fotadrevo, Ampanihy District, Atsimo-Andrefana, Madagascar	Frank K. Mazdab Collection	corundum-bearing amphibolite (tschermakite+anorthite); amphibole normalized to 13eCNK; as a result of the normalization scheme, Fe and minor Mn calculated as Fe2O3 and Mn2O3 to satisfy charge balance. W-site O calculated as 2*normalized Ti.
4	46/Kel-rim	Kovalo eclogites, Kechros, Arriana, Rhodope, Eastern Macedonia and Thrace, Greece	Mposkos, E.; Baziotis, I.; Proyer, A. (2011) Pressure–temperature evolution of eclogites from the Kechros complex in the Eastern Rhodope (NE Greece). International Journal of Earth Sciences, 101 (4). 973-996 doi:10.1007/s00531-011-0699-2	EMPA analysis of an kelyphitic amphibole from a retrogressed eclogite.

Crystallography of Ferrotschermakite-Tschermakite SeriesHide

Crystal System:

Monoclinic

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)
0006297	Tschermakite	Abdu Y A, Hawthorne F C (2009) Crystal structure and Mossbauer spectroscopy of tschermakite from the ruby locality at Fiskenaesset, Greenland The Canadian Mineralogist 47 917-926		2009	Fiskenaesset, Greenland	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Tschermakite'
loop_
_publ_author_name
'Abdu Y A'
'Hawthorne F C'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 47 
_journal_year 2009
_journal_page_first 917
_journal_page_last 926
_publ_section_title
;
 Crystal structure and Mossbauer spectroscopy of tschermakite from the ruby
 locality at Fiskenaesset, Greenland
;
_database_code_amcsd 0006297
_chemical_compound_source 'Fiskenaesset, Greenland'
_chemical_formula_sum 'Na.88 K.1 Mg3.66 Fe.47 Al2.37 Cr.2 Ca1.8 Si6.44 O24 H2'
_cell_length_a 9.8059
_cell_length_b 17.9721
_cell_length_c 5.3012
_cell_angle_alpha 90
_cell_angle_beta 105.063
_cell_angle_gamma 90
_cell_volume 902.144
_exptl_crystal_density_diffrn      3.139
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-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
NaA2   0.50000  -0.02800   0.00000   0.28000   0.02400
NaAm   0.52100   0.00000   0.05600   0.13000   0.02400
KAm   0.52100   0.00000   0.05600   0.05000   0.02400
MgM1   0.00000   0.08899   0.50000   0.93000   0.00840
FeM1   0.00000   0.08899   0.50000   0.07000   0.00840
MgM2   0.00000   0.17630   0.00000   0.48000   0.00630
AlM2   0.00000   0.17630   0.00000   0.38000   0.00630
CrM2   0.00000   0.17630   0.00000   0.10000   0.00630
FeM2   0.00000   0.17630   0.00000   0.04000   0.00630
MgM3   0.00000   0.00000   0.00000   0.84000   0.00760
AlM3   0.00000   0.00000   0.00000   0.05000   0.00760
FeM3   0.00000   0.00000   0.00000   0.11000   0.00760
CaM4   0.00000   0.27940   0.50000   0.90000   0.01250
NaM4   0.00000   0.27940   0.50000   0.03000   0.01250
FeM4   0.00000   0.27940   0.50000   0.07000   0.01250
SiT1   0.28110   0.08569   0.30170   0.67000   0.00770
AlT1   0.28110   0.08569   0.30170   0.33000   0.00770
SiT2   0.29140   0.17326   0.81360   0.94000   0.00850
AlT2   0.29140   0.17326   0.81360   0.06000   0.00850
O1   0.10660   0.08940   0.21360   1.00000   0.01190
O2   0.11890   0.17360   0.73570   1.00000   0.01060
O3   0.10999   0.00000   0.71460   1.00000   0.01130
O4   0.36840   0.25100   0.79180   1.00000   0.01340
O5   0.35095   0.14020   0.11140   1.00000   0.01380
O6   0.34330   0.11830   0.60450   1.00000   0.01400
O7   0.33680   0.00000   0.28090   1.00000   0.01730
H   0.21300   0.00000   0.78200   1.00000   0.06000
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
MgM1 0.01010 0.00880 0.00710 0.00000 0.00350 0.00000
FeM1 0.01010 0.00880 0.00710 0.00000 0.00350 0.00000
MgM2 0.00660 0.00670 0.00590 0.00000 0.00200 0.00000
AlM2 0.00660 0.00670 0.00590 0.00000 0.00200 0.00000
CrM2 0.00660 0.00670 0.00590 0.00000 0.00200 0.00000
FeM2 0.00660 0.00670 0.00590 0.00000 0.00200 0.00000
MgM3 0.00880 0.00670 0.00700 0.00000 0.00160 0.00000
AlM3 0.00880 0.00670 0.00700 0.00000 0.00160 0.00000
FeM3 0.00880 0.00670 0.00700 0.00000 0.00160 0.00000
CaM4 0.01330 0.01370 0.01210 0.00000 0.00640 0.00000
NaM4 0.01330 0.01370 0.01210 0.00000 0.00640 0.00000
FeM4 0.01330 0.01370 0.01210 0.00000 0.00640 0.00000
SiT1 0.00740 0.00810 0.00760 -0.00100 0.00190 -0.00040
AlT1 0.00740 0.00810 0.00760 -0.00100 0.00190 -0.00040
SiT2 0.00820 0.00940 0.00800 0.00000 0.00240 0.00080
AlT2 0.00820 0.00940 0.00800 0.00000 0.00240 0.00080
O1 0.01010 0.01670 0.00920 -0.00200 0.00310 -0.00100
O2 0.00730 0.01250 0.01130 0.00040 0.00150 0.00140
O3 0.01050 0.01250 0.01120 0.00000 0.00320 0.00000
O4 0.01550 0.01190 0.01440 -0.00250 0.00670 0.00030
O5 0.01130 0.01710 0.01220 0.00070 0.00150 0.00410
O6 0.01130 0.01740 0.01350 0.00190 0.00360 -0.00460
O7 0.01470 0.01500 0.02190 0.00000 0.00410 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.

Internet Links for Ferrotschermakite-Tschermakite SeriesHide

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References for Ferrotschermakite-Tschermakite SeriesHide

Reference List:

44(1): 1-21.

Hawthorne, F. C., Oberti, R. (2006) On the classification of amphiboles. The Canadian Mineralogist, 44 (1) 1-21 doi:10.2113/gscanmin.44.1.1

Localities for Ferrotschermakite-Tschermakite SeriesHide

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 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.


Antarctica
East Antarctica Queen Maud Land Humboldt Mountains ⓘ Calc-Silicate Rocks	[Tschermakite] - (n.d.)

Australia
New South Wales Murchison Co. Upper Bingara ⓘ ~~Ruby Hill Fossicking Reserve~~	[Tschermakite] Sutherland et al. (2003)
Yancowinna Co. ⓘ Acacia Vale (Lakes Grave)	[Ferro-tschermakite]
ⓘ Black Hill prospect	[Ferro-tschermakite] Gulson et al. (1985)
Victoria City of Greater Shepparton Dookie ⓘ Dookie Mineralogical Reserve quarry ?	[Ferro-tschermakite] Morvell (1976) +1 other reference
Western Australia Coolgardie Shire Coolgardie ⓘ Greenfields Mine (Caledonia Gold Mine; Three Mile Hill)	[Tschermakite] Geological Society of Australia WA Div.
ⓘ Kalgoorlie-Boulder Shire	[Ferro-tschermakite] Steadman et al. (2014)
Mount Monger Goldfield ⓘ Randalls	[Ferro-tschermakite] Steadman et al. (2014)
Upper Gascoyne Shire Glenburgh Station ⓘ Glenburgh Project ?	[Tschermakite] Roche (2016)

Bangladesh
Chittagong Division ⓘ Meghna River	[Tschermakite] Rahman et al. (2022)

Brazil
Bahia Caetité Maniaçu ⓘ Espírito Santo deposit	[Ferro-tschermakite] [[1]]Santos et al. (2020)
Espírito Santo Cachoeiro de Itapemirim Itaoca ⓘ Paraíba do Sul complex	[Tschermakite] Mesquita et al. (2017)
Goiás ⓘ Crixás gold field	[Ferro-tschermakite] Jost et al. (2001)
Crixás Mine III ⓘ Orebody IV	[Tschermakite] Campos et al. (2022)
Minas Gerais ⓘ Perdões	[Tschermakite] Jour. of South American Earth Sci. ...
Pará Canaã dos Carajás ⓘ Jatobá deposit	[Ferro-tschermakite] Campo Rodriguez et al. (2024)
ⓘ Carajás mineral province	[Ferro-tschermakite] Revista Brasileirade Geociências 30 (3)
Paraíba Catingueira Itajubatiba ⓘ Itajubatiba skarn deposit	[Ferro-tschermakite] Souza Neto et al. (2008)
Rio Grande do Sul Vila Nova do Sul ⓘ Bossoroca quarry	[Tschermakite] Massuda et al. (2020)

Bulgaria
Blagoevgrad Province Bansko Municipality ⓘ Obidim eclogite	[Tschermakite] Janák et al. (2011)

Canada
Manitoba Lynn Lake District ⓘ Agassiz Mine (MacLellan Mine)	[Ferro-tschermakite] Samson I M et al. (1999)
Newfoundland and Labrador Newfoundland ⓘ Steel Mountain anorthosite massif	[Tschermakite] Pe-Piper et al. (2024)
Ontario Algoma District McMurray Township ⓘ George W. MacLeod mine	[Tschermakite] www.venuewest.com/8IKC/s1post.htm.
Greater Sudbury Denison Township ⓘ Vermilion Mine	[Ferro-tschermakite] Szentpeteri et al. (2003)
Levack Township ⓘ Fraser Mine	[Ferro-tschermakite] McCormick et al. (1999)
Kenora District Balmer Township ⓘ Campbell Mine (Placer Dome)	[Tschermakite] Charles A. Tarnocai et al. (1997) +1 other reference
Thunder Bay District Bomby Township Hemlo gold deposit ⓘ Williams Mine (Page Williams Mine)	[Ferro-tschermakite] Kuhns et al. (1994)
Timiskaming District Boston Township ⓘ Boston Creek Flow deposit	[Ferro-tschermakite] Econ Geol (1993)
Québec Nord-du-Québec Jamésie Baie-James ⓘ Joe Mann mine	[Ferro-tschermakite] Guha et al (1991)

China
Anhui Anqing Taihu County Lake Hualiangting ⓘ Huangzhen-Zhujiachong area	[Tschermakite] Franz et al. (2001)
Yuexi County Wumiao Marble quarry ⓘ Calc-silicate outcrops	[Tschermakite] Lemanski (n.d.)
Wuhu Nanling County ⓘ Yaojialing Zn-Au deposit	[Tschermakite] Xiong et al. (2024)
Fujian Sanming Taining County ⓘ Gutian porphyry Cu-Mo deposit	[Tschermakite] Tian et al. (2023)
Gansu Jinchang Jinchuan District ⓘ Jinchuan Ni-Cu-PGE deposit (Baijiajuzi Ni-Cu-PGE deposit)	[Tschermakite] Porter (Mike)
Guangdong Yangjiang Yangchun Co. ⓘ Shilu Mine	[Tschermakite] Zheng et al. (2015)
Henan Pingdingshan Lushan County ⓘ Yaochang Fe deposit	[Tschermakite] Dongyang Zhang et al. (2010)
Inner Mongolia Baotou City (Baotou Prefecture) Bayan Obo mining district Bayan Obo ⓘ Bayan Obo deposit	[Ferro-tschermakite] Li et al. (2022)
Chifeng City (Ulanhad League; Chifeng Prefecture) Bairin Left Banner (Balin Zuoqi) ⓘ Haobugao Cu-polymetallic deposit	[Ferro-tschermakite]
Hexigten Banner (Keshiketeng Co.) ⓘ Huanggang Fe-Sn deposit	[Ferro-tschermakite] Yiming Zhao and Daxin Li (2003) +1 other reference
Shanxi Xinzhou Dai Co. ⓘ Yanmenguan	[Tschermakite] Bai et al. (2018)
Xinjiang Bayin'gholin Autonomous Prefecture Qiemo Co. (Qerqen Co.; Cherchen Co.) ⓘ Dalaku’an intrusion	[Tschermakite]
Hami Prefecture (Kumul Prefecture; Qumul Prefecture) Yizhou District Huangshan-Jing'erquan ore belt ⓘ Tula'ergen Cu-Ni-(Co) deposit (Tulargen Cu-Ni-(Co) deposit)	[Tschermakite] Weidong Hui et al. (2011)
Yunnan Dêqên Autonomous Prefecture Shangri-La County ⓘ Hongniu-Hongshan Cu deposit	[Tschermakite] Wang et al. (2022)
Honghe Gejiu City ⓘ Gejiu Sn-polymetallic ore field	[Ferro-tschermakite] Yiming Zhao and Daxin Li (2003)

Czech Republic
Olomouc Region Jeseník District Javorník Horní Hoštice ⓘ Iron deposit	[Ferro-tschermakite] Zimák (2008)
Šumperk District Loučná nad Desnou ⓘ Kyzový důl (Schwarzenthal)	[Tschermakite] Mücke et al. (2002)
Staré Město Malé Vrbno ⓘ Magnetite occurrence	[Ferro-tschermakite] Mücke et al. (2006)
Vernířovice ⓘ Kosaře	[Tschermakite] Mücke et al. (2002)
ⓘ Rudná hora	[Tschermakite] Mücke et al. (2002)
ⓘ Švagrov	[Tschermakite] Mücke et al. (2002)
ⓘ Sylvani-Zeche	[Tschermakite] Mücke et al. (2002)
ⓘ Zadní Hutisko	[Tschermakite] Zimák et al. (2018)
Plzeň Region Klatovy District ⓘ Tětice	[Tschermakite] Cílek et al. (západočeské svrchní proterozoikum)
Vysočina Region Havlíčkův Brod District Golčův Jeníkov ⓘ Jezuitský rybník	[Ferro-tschermakite] Dolníček Z et al. (2020)
Krucemburk ⓘ Staré Ransko	[Tschermakite] Ackerman et al. (2025)

Egypt
Red Sea Governorate ⓘ Hafafit	[Ferro-tschermakite] Mona Kabesh (2012)

Eurasian Plate
ⓘ Bundelkhand Craton	[Ferro-tschermakite] Rout et al. (2025)

Finland
Lapland Enontekiö ⓘ ~~Halti-Ridnitsohkka~~	[Ferro-tschermakite] Sipilä
North Savo Leppävirta ⓘ Kotalahti	[Tschermakite] Papunen
Southwest Finland Pargas ⓘ Ahvensaari	[Tschermakite] Laitakari (1916)

France
Bourgogne-Franche-Comté Haute-Saône Lure Mélisey Château-Lambert Saint-Maurice-sur-Moselle ⓘ Gabbro-dioritic outcrops	[Tschermakite] F. André and J. Béhien
Brittany Côtes-d'Armor Lannion Perros-Guirec La Clarté ⓘ B.G.P. Granite quarry	[Ferro-tschermakite] Hålenius et al. (2017) +1 other reference
New Caledonia Northern Province Poya North Népoui ⓘ Boninite outcrop	[Tschermakite] T. Sameshima et al.
Occitanie Aveyron Millau Saint-Beauzély ⓘ Azinières	[Tschermakite] Bull. Soc. Franç. Minéralo. ...
Viala-du-Tarn ⓘ La Rode bridge	[Tschermakite] Arliguie M collection
Tarn Castres Lacaune ⓘ Lacaune-les-Bains	[Ferro-tschermakite] Eur. J. Mineral.

Germany
Bavaria ⓘ Lower Bavaria	[Ferro-tschermakite] Christian Rewitzer (personal collection/dealer)
Hesse Darmstadt Bergstraße Bensheim Auerbach ⓘ Linck marble works	[Tschermakite] Weiß (1990)

Greece
Eastern Macedonia and Thrace Rhodope Arriana Kechros ⓘ Kovalo eclogites	[Ferro-tschermakite] Mposkos et al. (2011)
Xanthi Myki ⓘ Thermes ore field	[Tschermakite] Liati et al. (1994)

Greenland
Sermersooq Nuuk ⓘ Qeqertarsuatsiaat area	[Tschermakite] Petersen et al. (1993)

Hungary
Baranya County Komló District Komló ⓘ Macskalik Quarry	[Tschermakite] Harangi
Fejér County Gárdony District ⓘ Sukoró	[Tschermakite] Sándor et al. (2005)
Heves County Eger District Szarvaskő ⓘ Újhatár Valley	[Tschermakite] Sándor et al. (2005)
Pétervására District Mátraderecske ⓘ Kanázsvár	[Tschermakite] Sándor et al. (2005)

India
Karnataka Kolar District Kolar Gold Fields ⓘ Sakarsanahalli	[Tschermakite] Narayanan Kutty et al. (1977)
Odisha Sundargarh District (Sundergarh District) ⓘ Sargipalli Mines	[Tschermakite] Chowdhury (2007) +1 other reference
Rajasthan Jaipur district Sikar District ⓘ Rohil	[Tschermakite] Rout et al. (2022)

Indonesia
ⓘ Merapi Volcano	[Tschermakite] Knuever et al. (2023)

Iran
East Azerbaijan Province Varzaqan county ⓘ Sungun Mine (Songun Mine)	[Tschermakite] Kamali et al. (2018) +1 other reference

Italy
Aosta Valley Champdepraz ⓘ Mont Avic	[Tschermakite] Lecacheur et al. (2024)
Campania Metropolitan City of Naples Ercolano San Vito ⓘ San Vito Quarry	[Tschermakite] Russo et al. (2004)
Lazio Metropolitan City of Rome Capital ⓘ Alban Hills	[Tschermakite] Knuever et al. (2023)
Sardinia Sassari Province Golfo Aranci ⓘ Montiggiu Nieddu	[Tschermakite] Gamboni et al. (2006)
Tuscany Massa-Carrara Province Comano ⓘ Canale dell'Acqua Torbida (Lama dell'Ospitalaccio; Lama dello Spedalaccio)	Tucci (1988)
Fivizzano Sassalbo ⓘ Ospedalaccio Pass	Tucci (1988)

Madagascar
Atsimo-Andrefana Ampanihy District Fotadrevo Anavoha South ⓘ Corundum locality (Ianavoha)	[Tschermakite] Frank K. Mazdab collection
Benenitra District Ianapera ⓘ Ianapera emerald deposit (Sakalava)	[Tschermakite] Andrianjakavah et al. +1 other reference

Mexico
Chihuahua Pueblito de Allende ⓘ Allende meteorite	[Tschermakite] Ma et al. (2009)

Namibia
Khomas Region Windhoek Rural Aris ⓘ Aris Quarries ?	[Ferro-tschermakite] www.excaliburmineral.com/mind-j.htm.

New Zealand
Southland Region Invercargill City ⓘ Greenhills	[Tschermakite] Mossman et al. (2000)
ⓘ Steep Head	[Tschermakite] Mossman et al. (2000)

Norway
Agder Froland Lyngrott ⓘ Seljeåsen Nickel Prospect	[Tschermakite] Brickwood (1986)
Nordland Vefsn Husvika ⓘ Husvika Deposit	[Tschermakite] Birkeland et al. (1993)
Vestland Stad Selje Årsheim ⓘ Årsheimneset eclogite pod	[Tschermakite] Smith (1988)

Oman
Dhofar Governorate ⓘ Dhofar 925 Lunar meteorite (Dho 925)	[Tschermakite] - (2004, July)

Pacific Ocean
ⓘ Yap arc	[Tschermakite] Yan et al. (2024)

Pakistan
Gilgit-Baltistan Roundu District Haramosh Mountains ⓘ Tormiq Valley	[Tschermakite] Rolfo et al. (1997)
ⓘ Skardu Area	[Tschermakite] imported from Rondu District +1 other reference
Khyber Pakhtunkhwa Province Mohmand District ⓘ Warsak Intrusions	[Tschermakite] DH&Z +1 other reference

Philippines
Luzon Cordillera Administrative Region Benguet Province ⓘ Baguio	[Tschermakite] Cao et al. (2018)

Poland
Lower Silesian Voivodeship Dzierżoniów County Gmina Niemcza Gilów ⓘ Gilów talc deposit	[Ferro-tschermakite] Gil et al. (2022)
Kamienna Góra County Gmina Marciszów Wieściszowice ⓘ Amphibolite quarry	[Tschermakite] Oberc-Dziedzic et al. (2011)
Świdnica County ⓘ Gmina Strzegom	[Ferro-tschermakite] DHZ

Romania
Bistrița-Năsăud County Rodna Valea Vinului ⓘ Valea Vinului Mine	[Tschermakite] Papp et al. (2005)

Russia
Bashkortostan Uchalinsky District ⓘ Mindyak massif	[Tschermakite] Gottman et al. (2018)
Buryatia Okinsky District ⓘ Ulan-Sar’dag Ophiolite	[Tschermakite] Kiseleva et al. (2022)
Chelyabinsk Oblast Miass ⓘ Pit No. 418	[Tschermakite] Sorokina et al. (2019)
Verkhny Ufaley Ufaley District (Ufalei District) ⓘ Itkul' Lake	[Tschermakite] ...
Irkutsk Oblast Uda–Biryusa district ⓘ Ognit complex	[Tschermakite] Barkov et al. (2019)
Kamchatka Krai Ust-Bolsheretsky District Dukuk Complex (Dukuk Massif) ⓘ Annabergitovaya Schel	[Tschermakite] Novakov et al. (2021)
ⓘ Kvinum-1 occurrence	[Tschermakite] Tararin et al. (2007)
ⓘ Kvinum-2 occurrence	[Tschermakite] Tararin et al. (2007)
Murmansk Oblast Kolsky District ⓘ Tepsi ultrabasic body	[Tschermakite]
Olenegorsk ⓘ Olenegorskoe Fe deposit	[Ferro-tschermakite] Bazai et al. (2009)
Republic of Karelia Loukhsky District ⓘ Khit Ostrov (Khit Island)	[Tschermakite] Nikolay Serebryakov data
Oulanka plutonic complex Olanga River (Oulanka River) ⓘ Lukkulaisvaara ultrabasic Massif (Lukkulaisvaara pluton; Lukkulaisvaara layered intrusion)	[Tschermakite] A. Yu. Barkov et al.
Tedino Dyadino lake ⓘ Dyadina Gora	[Tschermakite] Pavel.M. Kartashov (n.d.)
Pryazhinsky District ⓘ Novye Peski deposit	[Ferro-tschermakite] Ivashchenko et al. (2018, June)
Sakha Verkhoyansk District Yana River Basin Yana-Adycha Region ⓘ Arga-Ynnakh-Khaya granite Massif	[Tschermakite] Trunilina et al. (2024)
ⓘ Syum-Keu Ophiolite Massif	[Ferro-tschermakite] Shabutdinov et al. (2024)

Slovakia
Banská Bystrica Region Lučenec District Čamovce ⓘ Unnamed stone quarry	[Tschermakite] [[1]]Reato
Poltár District Breznička ⓘ Breznička asbestos deposit	[Ferro-tschermakite] Spišak J.
Bratislava Region Bratislava Bratislava I Staré Mesto ⓘ Calvary (Okánikova street)	[Tschermakite] Ozdín et al. (2007)
Košice Region Gelnica District Prakovce Zimná Voda valley ⓘ Trohanka (Trochánka)	[Ferro-tschermakite] Myšľan et al. (2021)
Rožňava District ⓘ Dobšiná	[Tschermakite] Spišák
Prešov Region Prešov District Fintice ⓘ Fintice quarry	[Tschermakite] Ďuďa

South Korea
Gyeonggi Province Pocheon City ⓘ Gwanin magnetite mine	[Tschermakite] Lee et al. (2022)

Spain
Castile-La Mancha Guadalajara Atienza Alpedroches ⓘ Alpedroches andesite quarry	[Tschermakite] Majarena Serrano (2015)
Galicia Pontevedra A Cañiza ⓘ A Franqueira	[Tschermakite] Martin-Izard et al. (1995)

Sweden
Norrbotten County Gällivare ⓘ Tjårrojåkka apatite-iron deposit	[Tschermakite] Edfelt et al. (2006)
ⓘ Tjårrojåkka copper(-gold) deposit	[Tschermakite] Edfelt et al. (2006)
Kiruna Kiruna Town Mining District ⓘ Pahtohavare Cu-Au deposit ?	[Ferro-tschermakite] Valentin Alain (2014)

Switzerland
Grisons Maloja Region Bregaglia Upper Val Bregaglia Löbbia ⓘ Piz Lizun	[Tschermakite] Stalder et al. (1998)
Ticino Blenio Blenio Valley Santa Maria Valley Acquacalda ⓘ Frodalera	[Tschermakite] Stalder et al. (1998)
Leventina Quinto Piora Valley ⓘ Cadagno di Dentro	Taddei (1937) +1 other reference
Valais Goms Obergoms Ulrichen Ägene Valley (Äginen Valley; Aeginen Valley) Gries lake area ⓘ Gries lake	[Ferro-tschermakite] Stalder et al. (1998)

Tanzania
Arusha Region Longido District ⓘ ~~Mundarara Mine~~	[Tschermakite] Simonet (2000)

UK
ⓘ Scotland	[Tschermakite] Tindle (2008)
Highland Fort William and Ardnamurchan Ballachulish ⓘ Allt Guibhsachain	[Tschermakite] Ferry (1996)
South Ayrshire ⓘ Knockormal Hill	[Tschermakite] Smellie et al. (1984)
ⓘ Strathclyde	[Tschermakite] www.minsocam.org
Wales Conwy Caerhun ⓘ Tal y Fan	[Tschermakite] Bevins et al. (1993)

USA
Alaska Kenai Peninsula Borough Kachemak Bay Seldovia ⓘ Red Mountain pluton	[Tschermakite] Geological Society of America Bulletin
Arizona Santa Cruz County Tyndall Mining District ⓘ Blue Jay Mine (Blue Jay prospect)	[Tschermakite] Anthony et al. (1995)
California Siskiyou County Little Mount Hoffman ⓘ Unnamed Tschermakite occurrence [1]	[Tschermakite] Mertzman (1978) +1 other reference
Colorado Gunnison County Ruby Mining District (Elk Mountain Mining District; Irwin Mining District) ⓘ Standard Mine	[Ferro-tschermakite] Caine et al. (2010)
Georgia Rabun County ⓘ Laurel Creek complex	[Tschermakite] Helms et al. (1987)
Kentucky Calloway County ⓘ Murray meteorite	[Tschermakite] Ma et al. (2009)
New York St. Lawrence County Fowler ⓘ Emeryville	[Ferro-tschermakite] Mineralogical Society of America - ...
North Carolina ⓘ Alleghany County	[Tschermakite] Stapor
ⓘ Ashe County	[Tschermakite] Stapor
Clay County ⓘ Buck Creek	[Tschermakite] Lang
Davie County ⓘ Farmington Gabbro-Metagabbro Pluton	[Tschermakite] McSween et al. (1984)
Haywood County ⓘ Dellwood Metabasite site	[Tschermakite] Anderson et al. (2009)
Jackson County ⓘ Willets-Ochre Hill-Addite complex	[Tschermakite] Nathan Clay Collins (2011)
Macon County ⓘ Carroll Knob complex	[Tschermakite] Nathan Clay Collins (2011)
Cowee Valley Ellijay Mining District Franklin ⓘ Winding Stair Gap Roadcut	[Tschermakite] EL-Shazley et al. (2011)
ⓘ Tathams Creek	[Tschermakite] Collins (2011)
Mecklenburg County ⓘ Mecklenburg Gabbro-Metagabbro Complex	[Tschermakite] McSween Jr et al. (1984)
Mitchell County Bakersville ⓘ Honeycutt Branch	[Tschermakite] Page (2005)
ⓘ Lick Ridge	[Tschermakite] Page (2005)
Rowan County ⓘ Barber Gabbro-Metagabbro Pluton	[Tschermakite] McSween et al. (1984)
ⓘ Watauga County	[Tschermakite] Stapor
Texas Llano County ⓘ Packsaddle Mountain	[Tschermakite] in the collection of Jennifer Cindrich
Virginia Pittsylvania County James River-Roanoke River Mn-Fe-Ba Mining District ⓘ Hutter Mine (Herter Magnetite Mine)	[Ferro-tschermakite] Tracy et al. (2003) +1 other reference

Vietnam
Yên Bái Province ⓘ Lục Yên District	[Tschermakite] Xu et al. (2023)

Zimbabwe
Midlands Shurugwi District ⓘ Unki Mine	[Tschermakite] Chaumba (2017)

The Moon	[Tschermakite]

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