Periclase

Periclase

Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase

Castelli Romani bypass road, Albano Laziale, Metropolitan City of Rome Capital, Lazio, Italy

Periclase

Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase

Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase

Castelli Romani bypass road, Albano Laziale, Metropolitan City of Rome Capital, Lazio, Italy

Periclase

Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase

Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase

Castelli Romani bypass road, Albano Laziale, Metropolitan City of Rome Capital, Lazio, Italy

About PericlaseHide

Formula:

MgO

Colour:

Colorless, grayish white, yellow, brownish yellow, green, black

Lustre:

Sub-Vitreous

Hardness:

5½

Specific Gravity:

3.55 - 3.57

Crystal System:

Isometric

Member of:

Periclase Group

Name:

Named by Arcangelo Scacchi in 1841 from the Greek περικλάω, to break around, in allusion to the cleavage.

Type Locality:

ⓘ Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy

Periclase Group.

Periclase is a rare magnesium oxide mineral. It is usually found as a component of metamorphosed dolomitic limestones. May be associated with pyrometamorphism (e.g., coal fires). It can hydrate and alter to Brucite and other magnesium minerals by action of the humidity in normal atmospheric conditions.

Periclase is possibly dimorphous with 'Unnamed (Orthorhombic Polymorph of Magnesium Oxide)' known from inclusions in some Brasilian diamonds.

Visit gemdat.org for gemological information about Periclase.

Unique IdentifiersHide

IMA Classification of PericlaseHide

Classification of PericlaseHide

Mineral SymbolsHide

Pronunciation of PericlaseHide

Physical Properties of PericlaseHide

Optical Data of PericlaseHide

Chemistry of PericlaseHide

Crystallography of PericlaseHide

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)
0000501	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	297
0000502	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	297
0000503	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	423
0000504	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	573
0000505	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	723
0000506	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	878
0000507	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	1026
0000508	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	1188
0000509	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	1315
0000510	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	293
0000511	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	77
0000512	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	293
0000513	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	293
0000514	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		1.7	293
0000515	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		2.4	293
0000516	Periclase	Hazen R M (1976) Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase American Mineralogist 61 266-271		1976		0	293
0020747	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	0	300
0020748	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	10.62	300
0020749	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	17.63	300
0020750	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	24.85	300
0020751	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	30.25	300
0020752	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	35.19	300
0020753	Periclase	Matsui M, Ito E, Yamazaki D, Yoshino T, Guo X, Shan S, Higo Y, Funakoshi F I (2012) Static compression of (Mg0.83,Fe0.17)O and (Mg0.75,Fe0.25)O ferropericlase up to 58 GPa at 300, 700, and 1100 K American Mineralogist 97 176-183		2012	synthetic	39.4	300

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Periclase' loop_ _publ_author_name 'Hazen R M' _journal_name_full 'American Mineralogist' _journal_volume 61 _journal_year 1976 _journal_page_first 266 _journal_page_last 271 _publ_section_title ; Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase T = 24 C, P = 1 atm, standard mount ; _database_code_amcsd 0000501 _chemical_formula_sum 'Mg O' _cell_length_a 4.211 _cell_length_b 4.211 _cell_length_c 4.211 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 74.672 _exptl_crystal_density_diffrn 3.585 _symmetry_space_group_name_H-M 'F m 3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' 'z,-x,y' 'z,1/2-x,1/2+y' '1/2+z,-x,1/2+y' '1/2+z,1/2-x,y' '-y,z,-x' '-y,1/2+z,1/2-x' '1/2-y,z,1/2-x' '1/2-y,1/2+z,-x' 'x,-y,z' 'x,1/2-y,1/2+z' '1/2+x,-y,1/2+z' '1/2+x,1/2-y,z' '-z,x,-y' '-z,1/2+x,1/2-y' '1/2-z,x,1/2-y' '1/2-z,1/2+x,-y' 'y,-z,x' 'y,1/2-z,1/2+x' '1/2+y,-z,1/2+x' '1/2+y,1/2-z,x' '-x,y,-z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2-z' '1/2-x,1/2+y,-z' 'x,-z,-y' 'x,1/2-z,1/2-y' '1/2+x,-z,1/2-y' '1/2+x,1/2-z,-y' '-z,y,x' '-z,1/2+y,1/2+x' '1/2-z,y,1/2+x' '1/2-z,1/2+y,x' 'y,-x,-z' 'y,1/2-x,1/2-z' '1/2+y,-x,1/2-z' '1/2+y,1/2-x,-z' '-x,z,y' '-x,1/2+z,1/2+y' '1/2-x,z,1/2+y' '1/2-x,1/2+z,y' 'z,-y,-x' 'z,1/2-y,1/2-x' '1/2+z,-y,1/2-x' '1/2+z,1/2-y,-x' '-y,x,z' '-y,1/2+x,1/2+z' '1/2-y,x,1/2+z' '1/2-y,1/2+x,z' 'x,z,y' 'x,1/2+z,1/2+y' '1/2+x,z,1/2+y' '1/2+x,1/2+z,y' '-z,-y,-x' '-z,1/2-y,1/2-x' '1/2-z,-y,1/2-x' '1/2-z,1/2-y,-x' 'y,x,z' 'y,1/2+x,1/2+z' '1/2+y,x,1/2+z' '1/2+y,1/2+x,z' '-x,-z,-y' '-x,1/2-z,1/2-y' '1/2-x,-z,1/2-y' '1/2-x,1/2-z,-y' 'z,y,x' 'z,1/2+y,1/2+x' '1/2+z,y,1/2+x' '1/2+z,1/2+y,x' '-y,-x,-z' '-y,1/2-x,1/2-z' '1/2-y,-x,1/2-z' '1/2-y,1/2-x,-z' 'z,x,-y' 'z,1/2+x,1/2-y' '1/2+z,x,1/2-y' '1/2+z,1/2+x,-y' '-y,-z,x' '-y,1/2-z,1/2+x' '1/2-y,-z,1/2+x' '1/2-y,1/2-z,x' 'x,y,-z' 'x,1/2+y,1/2-z' '1/2+x,y,1/2-z' '1/2+x,1/2+y,-z' '-z,-x,y' '-z,1/2-x,1/2+y' '1/2-z,-x,1/2+y' '1/2-z,1/2-x,y' 'y,z,-x' 'y,1/2+z,1/2-x' '1/2+y,z,1/2-x' '1/2+y,1/2+z,-x' '-x,-y,z' '-x,1/2-y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,z' '-z,x,y' '-z,1/2+x,1/2+y' '1/2-z,x,1/2+y' '1/2-z,1/2+x,y' 'y,-z,-x' 'y,1/2-z,1/2-x' '1/2+y,-z,1/2-x' '1/2+y,1/2-z,-x' '-x,y,z' '-x,1/2+y,1/2+z' '1/2-x,y,1/2+z' '1/2-x,1/2+y,z' 'z,-x,-y' 'z,1/2-x,1/2-y' '1/2+z,-x,1/2-y' '1/2+z,1/2-x,-y' '-y,z,x' '-y,1/2+z,1/2+x' '1/2-y,z,1/2+x' '1/2-y,1/2+z,x' 'x,-y,-z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' '-x,z,-y' '-x,1/2+z,1/2-y' '1/2-x,z,1/2-y' '1/2-x,1/2+z,-y' 'z,-y,x' 'z,1/2-y,1/2+x' '1/2+z,-y,1/2+x' '1/2+z,1/2-y,x' '-y,x,-z' '-y,1/2+x,1/2-z' '1/2-y,x,1/2-z' '1/2-y,1/2+x,-z' 'x,-z,y' 'x,1/2-z,1/2+y' '1/2+x,-z,1/2+y' '1/2+x,1/2-z,y' '-z,y,-x' '-z,1/2+y,1/2-x' '1/2-z,y,1/2-x' '1/2-z,1/2+y,-x' 'y,-x,z' 'y,1/2-x,1/2+z' '1/2+y,-x,1/2+z' '1/2+y,1/2-x,z' '-x,-z,y' '-x,1/2-z,1/2+y' '1/2-x,-z,1/2+y' '1/2-x,1/2-z,y' 'z,y,-x' 'z,1/2+y,1/2-x' '1/2+z,y,1/2-x' '1/2+z,1/2+y,-x' '-y,-x,z' '-y,1/2-x,1/2+z' '1/2-y,-x,1/2+z' '1/2-y,1/2-x,z' 'x,z,-y' 'x,1/2+z,1/2-y' '1/2+x,z,1/2-y' '1/2+x,1/2+z,-y' '-z,-y,x' '-z,1/2-y,1/2+x' '1/2-z,-y,1/2+x' '1/2-z,1/2-y,x' 'y,x,-z' 'y,1/2+x,1/2-z' '1/2+y,x,1/2-z' '1/2+y,1/2+x,-z' '-z,-x,-y' '-z,1/2-x,1/2-y' '1/2-z,-x,1/2-y' '1/2-z,1/2-x,-y' 'y,z,x' 'y,1/2+z,1/2+x' '1/2+y,z,1/2+x' '1/2+y,1/2+z,x' '-x,-y,-z' '-x,1/2-y,1/2-z' '1/2-x,-y,1/2-z' '1/2-x,1/2-y,-z' 'z,x,y' 'z,1/2+x,1/2+y' '1/2+z,x,1/2+y' '1/2+z,1/2+x,y' '-y,-z,-x' '-y,1/2-z,1/2-x' '1/2-y,-z,1/2-x' '1/2-y,1/2-z,-x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Mg 0.00000 0.00000 0.00000 0.00431 O 0.50000 0.50000 0.50000 0.00469

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Type Occurrence of PericlaseHide

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Periclase in petrologyHide

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Localities for PericlaseHide

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.

Algeria
In Salah Province In Salah District Foggaret Ezzaouia ⓘ Acfer 094 meteorite	Greshake et al. (1996)
Angola
Huíla Province Quilengues ⓘ Mount Bonga	Amores-Casals et al. (2019)
Austria
Burgenland Mattersburg District Sieggraben Auwiesenbach valley ⓘ Peridotite outcrop	Exel (1993)
Styria Südoststeiermark District Klöch ⓘ Basalt quarry	Exel (1993) +1 other reference
Bangladesh
Chittagong Division Noakhali District ⓘ Hatiya Island	Uddin et al. (2022)
Brazil
Mato Grosso Juína ⓘ Juininha river	Cid et al. (2014)
ⓘ São Luis river alluvials	Ragozin +4 other references
ⓘ Sorriso river	Kaminsky et al. (2022) +1 other reference
ⓘ Chicória farm	Kaminsky et al. (2015) +2 other references
Juína kimberlite field ⓘ Juina-5 kimberlite pipe	Thomson et al. (2014)
Bulgaria
Pazardzhik Province Panagyurishte Municipality ⓘ Momin Skok ore occurrence	Chavdarova et al. (2022)
Canada
Northwest Territories Lac de Gras Diavik Mine ⓘ A154 South pit	Donnelly (2007)
Ekati Mine ⓘ Mark Kimberlite	Abersteiner et al. (2020)
ⓘ Panda pit	Tappert et al. (2005)
Ontario ⓘ Bancroft area	162-165. +1 other reference
Greater Sudbury Levack Township ⓘ Strathcona Mine	Royal Ontario Museum
Hastings County Town of Bancroft Dungannon Township York River area ⓘ York River skarn	MSC Report 39
Québec Laurentides Deux-Montagnes RCM ⓘ Oka complex	Gold (1969)
Nord-du-Québec Nunavik ⓘ West Clearwater Lake impact crater	Daniel F. Rosa and Robert F. Martin (2010)
Outaouais Les Collines-de-l'Outaouais RCM La Pêche Wakefield ⓘ Maxwell quarry	Hull-Maniwaki +1 other reference
China
Anhui Huaibei Suixi Co. Sanpu ore field ⓘ Qianchang Mine	Yiming Zhao et al. (1999)
ⓘ Qinlou Mine	Yiming Zhao et al. (1999)
ⓘ Sanpu Cu-Fe deposit	Yiming Zhao et al. (1999) +1 other reference
Fujian Nanping Yanping District ⓘ Qinshan diopside deposit	Jianchang Yu (1994)
Hong Kong New Territories Sha Tin District Ma On Mountain (Ma On Shan) ⓘ Ma On Shan Mine	Li (2008)
Jilin Tonghua Ji'an Co. ⓘ Jian forsterite jade deposit	Peng et al. (2022)
Qinghai Hainan Xinghai County ⓘ Saishitang Mine (Saishentang Mine; Sashitang Mine)	Jianhui Wu et al. (2010)
Shanxi Linfen Yicheng Co. ⓘ Zhangjiapo Fe deposit (Erfengshan Fe deposit)	Yiming Zhao and Daxin Li (2003)
Tibet Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Qusum Co. (Qusong Co.) ⓘ Luobusha ophiolite ("Luobusa ophiolite")	Wenji Bai et al. (2001)
Kangjinla Cr deposit ⓘ Orebody CR-11	Xiangzhen et al. (2009)
Czech Republic
South Moravian Region Brno-Country District Oslavany ⓘ Rosice-Oslavany coalfield	Hršelová et al. (2013)
France
Occitanie Pyrénées-Orientales Céret Prats-de-Mollo-la-Preste ⓘ Costabonne mines (Costabona mines)	Dubru. M (1986)
Germany
Lower Saxony Goslar District Bad Harzburg Radau valley ⓘ Gabbro Quarry	Quakenack (1967)
Rhineland-Palatinate Mayen-Koblenz Mayen Seekante ⓘ Xenolith CS-020	Skrzyńska et al. (2023)
Vordereifel Ettringen ⓘ Caspar quarry	[Hentschel et al. (5)
ⓘ E-2011 xenolith	Sharygin (2012)
ⓘ Xenolith CS-050	in the collection of Christof Schäfer
Vulkaneifel Gerolstein Walsdorf Zilsdorf ⓘ Arensberg	Beyer
Thuringia Greiz District Kauern ⓘ Lichtenberg Absetzer dump	XRD and SEM-EDX analysis (T. Witzke)
ⓘ Ronneburg U deposit	tw.strahlen.org (2007) +1 other reference
Guinea
Kankan Region ⓘ Kankan diamond District	McCammon et al. (2004)
Hungary
Fejér County Székesfehérvár District Kőszárhegy ⓘ Kőszárhegy Quarry	Szakáll: Minerals of Szár Hill
Heves County Pétervására District Recsk ⓘ Györke-tető	Mineral Species of Hungary
ⓘ Kalapos Hill	Mineral Species of Hungary
India
Gujarat Chhota Udaipur District ⓘ Amba Dongar complex	Deans et al. (1972) +8 other references
Indonesia
ⓘ Merapi Volcano	Knuever et al. (2023)
Israel
Southern District (HaDarom District) Tamar Regional Council ⓘ Hatrurim Basin	Galuskin et al. (2015)
ⓘ Aravaite type locality	doi:10.3390/min8030109. +2 other references
Italy
Campania Naples ⓘ Somma-Vesuvius Complex	Knuever et al. (2023)
ⓘ Mount Somma (TL)	Scacchi (1841)
Ercolano San Vito ⓘ San Vito Quarry	Luigi Chiappino data
Pollena Trocchia ⓘ Lagno di Pollena	Carati M.
Sant'Anastasia ⓘ Lagno Amendolare	www.gmgn.it (n.d.)
ⓘ Mount Vesuvius	Massimo Russo (2023)
Salerno Nocera Inferiore ⓘ Fiano tuff quarries	Carati (1988)
Emilia-Romagna Ferrara Province Vigarano Mainarda Vigarano Pieve ⓘ Vigarano meteorite (Cariani; Ferrara; Mainardi; Morandi; Parish; Pieve; Vigarano Mainarda; Vigarano Pieve; Vigarno; Vigarvano; Vigavano [NHM cat.])	Zinner et al. (1989)
Lazio Metropolitan City of Rome Capital Alban Hills ⓘ Albano Lake crater	Pucci R. (2008)
Albano Laziale ⓘ Castelli Romani bypass road (Via Appia Bis)	Pucci (2004 a)
ⓘ Ariccia	De Michele (1974)
Cerveteri ⓘ Pianciano carbonatite	Stoppa et al. (2019)
Lombardy Sondrio Province Chiesa in Valmalenco ⓘ Sissone Valley	AA. VV.
Valfurva Cedec Valley ⓘ Bottiglia Pass (Königsjoch)	Tomasi (1950)
Piedmont Verbano-Cusio-Ossola Province ⓘ Premosello-Chiovenda	Piccoli et al. (2007)
Sardinia South Sardinia Province Teulada ⓘ Giovanni Matta quarry	Peruzzi (1905)
Trentino-Alto Adige (Trentino-South Tyrol) Trento Province (Trentino) ⓘ Monzoni Mountains	AA. VV.
ⓘ Predazzo	AA. VV.
Japan
Gifu Prefecture Motosu City Neo area ⓘ Nogohakusan (Nogo-Hakusan)	Go Ito specimen
Jordan
Amman Governorate Transjordan Plateau Daba-Siwaqa complex Hashem region Lisdan-Siwaga Fault Siwaga ⓘ Tulul al Hammam	Khoury et al. (2015) +2 other references
ⓘ Unnamed marble quarries	Sokol +9 other references
Mafraq Governorate ⓘ Tulayl Al-Hasna	Yaseen (2014)
Lesotho
Mokhotlong District ⓘ Letseng Diamond Mine	Field et al. (2008)
Middle East
ⓘ Hatrurim Formation	Gross (1977)
Myanmar
Mandalay Region Pyin-Oo-Lwin District ⓘ Mogok Township	Myint Myat Phyo et al. (2019)
Norway
Telemark Nome ⓘ Fen Complex ?	Sæther (1957)
Pakistan
Balochistan ⓘ Bela ophiolite	Bashir et al. (2009)
Palestine
West Bank Bethlehem Governorate ⓘ Nahal Darga	Galuskina et al. (2019)
Quds Governorate ⓘ Jebel Harmun (Jabel Harum)	Galuskin et al. (2015)
Poland
Lesser Poland Voivodeship Olkusz County ⓘ Bukowno	Ref.: Kucha H.
Lower Silesian Voivodeship Kłodzko County Gmina Nowa Ruda Przygórze Bolesław Mine ⓘ Przygórze heap	Kruszewski et al. (2012)
Świdnica County Gmina Marcinowice Wirki ⓘ 'Wiry' magnesite mine	Sułkowski J. (1967)
Zgorzelec County Gmina Zgorzelec Gronów ⓘ Gronów IG-1 borehole	Lis et al. (1986)
Silesian Voivodeship Siemianowice Śląskie ⓘ Dąbrowka Wielka	Kruszewski L. 2006: Oldhamite-periclase-portlandite-fluorite assemblage and coexisting minerals of burnt dump in Siemianowice Śląskie - Dąbrówka Wielka area (Upper Silesia, Poland)
Romania
Bihor County Pietroasa ⓘ Pestera din Valea Rea	Onac et al. (1995)
Russia
Aldan Shield Chara and Tokko Rivers Confluence ⓘ Murunskii Massif	[Lapis 1993:4 p.13-20]
Chelyabinsk Oblast ⓘ Chelyabinsk coal basin	Cesnokov et al. (1998)
ⓘ Kopeysk	Cesnokov et al. (1998)
ⓘ Coal mine No. 44	Pekov (1998)
ⓘ Coal mine No. 45	Pekov (1998)
Korkinsky District Korkino ⓘ Korkinskii coal quarry	Am Min 90:1556-1562
Irkutsk Oblast Lake Baikal area ⓘ Tazheranskii Massif	Starikova et al. (2017)
Kabardino-Balkaria Baksan Valley Upper Chegem volcanic caldera (Verkhnechegemskaya caldera) ⓘ Lakargi Mountain	A. E. Zadov data
ⓘ Xenolith no. 3	Galuskin et al. (2011)
Khabarovsk Krai Ayan-Maya district ⓘ Konder alkaline-ultrabasic massif	Lennikov et al. (2004)
Republic of Karelia Pitkyaranta mining district (Pitkäranta mining district) ⓘ Hopunvaara mine	Aleksandrov et al. (2009)
ⓘ Izvestkoyvi quarry	Aleksandrov et al. (2009)
Sakha Anabarsky District ⓘ Ebelyakh River basin	Logvinova et al. (2019)
Mirninsky District Daldyn ⓘ Udachnaya open-pit mine (Udachnaya-Vostochnaya pipe; Udachnaya pipe)	N. Sobolev et al. et al. (47)
Sverdlovsk Oblast Sysertsky District Dvurechensk ⓘ Klyuchevskii Zavod slag locality	Victor V. Sharygin analytical data
Yamalo-Nenets Autonomous Okrug ⓘ Rai-Iz Ophiolite Massif	6th orogenic lherzolite conference 2014 ... +1 other reference
Slovakia
Banská Bystrica Region Žiar nad Hronom District Kremnica ⓘ Kremnica Au-Ag deposit	Ďuďa (1993)
South Africa
Free State Xhariep District Municipality Letsemeng Local Municipality Koffiefontein ⓘ Koffiefontein Mine	Field et al. (2008)
Limpopo Waterberg District Municipality Mogalakwena Local Municipality Mogalakwena Mokopane Turfspruit farm ⓘ Flatreef deposit	Grobler et al. (2019)
ⓘ Uitloop Farm	Cairncross et al. (1995)
Mpumalanga Gert Sibande District Municipality Chief Albert Luthuli Local Municipality Waterval Uitkomst Complex ⓘ Nkomati Mine	Guenther et al. (2012)
Spain
Andalusia Málaga Igualeja ⓘ El Robledal Mine (Cañuelo skarn)	González-Pérez et al. (2023)
Mijas ⓘ Sierra de Mijas	Romero Silva (2003)
Sweden
Dalarna County Ludvika ⓘ Tennberget	Wilke (1976)
Smedjebacken ⓘ Snösjö
Uppsala County Östhammar ⓘ Söderby mines
Värmland County Filipstad Långban Ore District ⓘ Långban Mine	Holtstam et al. (1999)
Nordmark mining district Jakobsberg ore field ⓘ Jakobsberg Mine	Gatedal (n.d.)
Nordmark Odal Field ⓘ Kitteln Mine	Dana 6: 207.
Persberg ore district ⓘ Gåsgruvan ore field	Sandström et al. (2009)
ⓘ Gåsgruvan	Sandström et al. (2009)
ⓘ Gåsgruvan Quarry
Västernorrland County Sundsvall ⓘ Alnö Complex	Sandström et al. (2010)
ⓘ Stolpås	Eckermann (1974)
Tanzania
Arusha Region Monduli District Kerimasi volcano ⓘ Trig Point Hill flow	Mitchell et al. (2021)
Tonga
Southern Lau Basin ⓘ Mariner vent field	Wendt (2013)
Uganda
Western Region Kabarole ⓘ Fort Portal	Barker et al. (1989)
UK
England Derbyshire Bolsover District Hodthorpe and Belph ⓘ Whitwell Quarry	Peter J. Briscoe et al. (2021)
Scotland Highland Caol and Mallaig Isle of Muck ⓘ Camas Mor Intrusion	Tilley (1947)
Eilean á Chèo Isle of Skye ⓘ Beinn an Dubhaich	HOLNESS (1992)
Fort William and Ardnamurchan Ballachulish ⓘ Allt Guibhsachain	Ferry (1996)
Ukraine
Donetsk Oblast Donetsk Kalinin coal mine ⓘ Burned coal dumps	Шарыгин (2015)
USA
Arizona Cochise County ⓘ Tombstone Mining District	Anthony et al. (1995)
Maricopa County ⓘ Phoenix area	- (n.d.) +1 other reference
Mohave County Black Mountains Oatman Mining District ⓘ Unnamed Mg occurrence [1]	Anthony et al. (1995)
Arkansas ⓘ Pike County	Howard (2007)
California Riverside County Jurupa Valley Crestmore Crestmore quarries Chino Hill Chino Quarry ⓘ Chino underground mine	Woodford et al. (1941)
Sky Blue Hill ⓘ Commercial Quarry	Woodford et al. (1941)
ⓘ Wet Weather Quarry	Rogers (1918b) +2 other references
Jurupa Mountains ⓘ Jensen Quarry	Van Nostrand Reinholt Press: 145 +3 other references
Riverside ⓘ New City Quarry (Victoria Avenue quarry)	Van Nostrand Reinholt Press: 145. +3 other references
ⓘ Old City Quarry (City Quarry; North Hill Quarry; Quarry Hill; Fairmount)	Van Nostrand Reinholt Press: 145. +2 other references
Colorado Larimer County ⓘ State Line Kimberlite Mining District	Eckel et al. (1997)
Kentucky Hardin County ⓘ Tiptop	Goldstein (2006)
Nevada Nye County Gabbs Mining District Gabbs ⓘ Sierra Magnesite Mine	Castor et al. (2004)
New Mexico Doña Ana County Organ Mountains Organ Mining District ⓘ South Canyon Mining District	Am Min (1937) +1 other reference
ⓘ South Canyon Magnesite Deposits	Dunham (1935)
ⓘ Target Range Canyon	Am Min (1937)
New York Putnam County Town of Southeast ⓘ Brewster	NY State Museum spec. no. 19294
Texas Culberson County Apache Peak area ⓘ Marble Canyon Mine (Texas Agricultural Aggregates Quarry)	Rocks & Minerals: 66 (3) +1 other reference
Sierra Diablo ⓘ Cave Peak deposit	Smith (1991)
Utah Juab County Fish Springs Mountains Fish Springs Mining District ⓘ Crypto Mineral Deposit	Staargaard (2009)
Salt Lake County Big Cottonwood Mining District Brighton Great Western Mine Group ⓘ Big Cottonwood Mine	Bullock (1981)
ⓘ Mountain Lake Mine (Jack Mine)	Bullock (1981)
ⓘ Clayton Peak stock	Bullock (1981)
ⓘ Little Cottonwood Mining District	Bullock (1981)
ⓘ Alta	AmerJrnSci. 276: 502-524. (1976)
ⓘ Albian Basin	Woodford et al. (2001)
Utah County Alpine-Silver Lake Mining District ⓘ Deer Creek	Bullock (1981)
ⓘ Silver Creek	Bullock (1981)
Washington County Mineral Mountain Mining District ⓘ Emma Mine	Bullock (1981)
Uzbekistan
Samarqand Zirabulak Mountain (Zirabulakskie Mountain) ⓘ Ingichka Mine (Ingichke Mine)	Evseev (1995)
Venezuela
Bolívar ⓘ Guaniamo	Canadian Mineralogist (2000)
Zimbabwe
Matabeleland South Beitbridge District ⓘ River Ranch Mine	Kopylova et al. (1997)