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Native Osmium

A valid IMA mineral species - grandfathered

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Photos of Native Osmium (52)Discuss Native Osmium

Native Osmium Gallery Search Photos of Native Osmium

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Native Osmium, etc.

Adamsfield, Derwent Valley municipality, Tasmania, Australia

Native Osmium

Neiva River alluvials, Alapayevsk Urban Okrug, Sverdlovsk Oblast, Russia

Iridosmine

Miass River, Chelyabinsk Oblast, Russia

Native Osmium, etc.

Adamsfield, Derwent Valley municipality, Tasmania, Australia

Native Osmium

Neiva River alluvials, Alapayevsk Urban Okrug, Sverdlovsk Oblast, Russia

Iridosmine

Miass River, Chelyabinsk Oblast, Russia

Native Osmium, etc.

Adamsfield, Derwent Valley municipality, Tasmania, Australia

Native Osmium

Neiva River alluvials, Alapayevsk Urban Okrug, Sverdlovsk Oblast, Russia

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About Native OsmiumHide

Formula:

(Os,Ir,Ru)

Colour:

White

Lustre:

Metallic

Hardness:

6 - 7

Specific Gravity:

22.48

Crystal System:

Hexagonal

Name:

After the Greek for odor, for its pungent and irritating odor when heated in air.

The Os analogue of hexaferrum, hexamolybdenum, garutiite, and ruthenium.

Unique IdentifiersHide

Mindat ID:

3037

Long-form identifier:

mindat:1:1:3037:9

IMA Classification of Native OsmiumHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA status notes:

Redefined by the IMA

IMA Formula:

Approval history:

Redefined 1991 s.p.: Harris and Cabri (1991).

Classification of Native OsmiumHide

Strunz-mindat (2025):

1.AF.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
F : Platinum group elements

Dana 7th ed.:

1.2.2.1

Dana 8th ed.:

1.2.2.1

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys

Hey's CIM Ref.:

1.76

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

Mineral SymbolsHide

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

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

Symbol	Source	Reference
Os	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Os	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Native OsmiumHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

White

Streak:

Grey

Hardness:

6 - 7 on Mohs scale

Hardness:

VHN₂₅=1206 - 1246 kg/mm² - Vickers

Density:

22.48 g/cm³ (Measured) 22.59 g/cm³ (Calculated)

Optical Data of Native OsmiumHide

Anisotropism:

Strong, reddish orange

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
420nm	62.7%	63.9%
460nm	63.9%	64.6%
500nm	63.3%	63.8%
540nm	62.1%	62.7%
580nm	60.9%	61.4%
620nm	59.9%	60.2%
660nm	59.3%	59.9%
700nm	59.4%	60.0%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 64.6%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

White with bluish gray tint

Pleochroism:

Weak

Chemistry of Native OsmiumHide

Mindat Formula:

(Os,Ir,Ru)

Element Weights:

Element	% weight
Os	100.000 %

Calculated from ideal end-member formula.

Elements listed:

Ir, Os, Ru - search for minerals with similar chemistry

Common Impurities:

Pt,Rh,Pd

Crystallography of Native OsmiumHide

Crystal System:

Hexagonal

Class (H-M):

6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal

Space Group:

P6₃/mmc

Cell Parameters:

a = 2.7341 Å, c = 4.3197 Å

Ratio:

a:c = 1 : 1.58

Unit Cell V:

27.96 Å³ (Calculated from Unit Cell)

Morphology:

Prismatic inclusions.

Crystal StructureHide

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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

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CIF File Best | x | y | z | a | b | c

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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)
0011188	Native Osmium	Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Hexagonal closest packed, hcp, structure Crystal Structures 1 7-83	1963		293
0016737	Native Osmium	Levy C, Picot P (1961) Nouvelles donnees sur les composes iridium-osmium. Existence de l'osmium natif _cod_database_code 1008870 Bulletin de la Societe Francaise de Mineralogie et de Cristallographie 84 312-317	1961		293
0020238	Native Osmium	Mochalov A G, Dmitrenko G G, Rudashevsky N S, Zhernovsky I V, Boldyreva M M (1998) Hexaferrum (Fe,Ru),(Fe,Os),(Fe,Ir) - a new mineral Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 127 41-51	1998	synthetic	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Osmium'
loop_
_publ_author_name
'Wyckoff R W G'
_journal_name_full 'Crystal Structures'
_journal_volume 1 
_journal_year 1963
_journal_page_first 7
_journal_page_last 83
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
 Hexagonal closest packed, hcp, structure
;
_database_code_amcsd 0011188
_chemical_formula_sum 'Os'
_cell_length_a 2.7352
_cell_length_b 2.7352
_cell_length_c 4.3190
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 27.983
_exptl_crystal_density_diffrn     22.573
_symmetry_space_group_name_H-M 'P 63/m m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Os   0.33333   0.66667   0.25000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.076 Å	(100)
2.367 Å	(35)
2.160 Å	(35)
1.3668 Å	(20)
1.2300 Å	(20)
1.1551 Å	(20)
1.595 Å	(18)

Comments:

Synthetic

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Pre-terrestrial "Ur-minerals"	>4.57
1 : Stellar atmosphere condensates
Stage 1: Primary nebular phases	4.567-4.561
3 : Solar nebular condensates (CAIs, AOAs, URIs)	>4.565
Near-surface Processes
26 : Hadean detrital minerals
Stage 4b: Highly evolved igneous rocks	>3.0
36 : Carbonatites, kimberlites, and related igneous rocks
37 : Layered igneous intrusions and related PGE minerals
Stage 5: Initiation of plate tectonics	<3.5-2.5
38 : Ophiolites

Geological Setting:

From ultramafic rocks and placers.

Synonyms of Native OsmiumHide

Osmium

Platinum-Group Elements (in part)

Other Language Names for Native OsmiumHide

Arabic:أوزميوم

Armenian:Օսմիում

Basque:Osmio

Belarusian:Осмій

Bengali:অসমিয়াম

Bosnian:Osmijum

Bulgarian:Осмий

Catalan:Osmi

Corsican:Osmiu

Croatian:Osmij

Czech:Native Osmium

Danish:Native Osmium

Dutch:Native Osmium

Esperanto:Osmio

Estonian:Native Osmium

Farsi/Persian:اسمیوم

Finnish:Native Osmium

French:Native Osmium

Friulian:Osmi

Galician:Osmio

German:Native Osmium
Osminium

Greek:Όσμιο

Hebrew:אוסמיום

Hungarian:Ozmium

Icelandic:Osmín

Ido:Osmio

Indonesian:Native Osmium

Italian:Osmio

Japanese:オスミウム

Javanese:Native Osmium

Korean:오스뮴

Kurdish (Latin Script):Osmiyûm

Latin:Native Osmium

Latvian:Osmijs

Lithuanian:Osmis

Lojban:Jinmrbosmi

Luxembourgish:Native Osmium

Malayalam:ഓസ്മിയം

Manx:Native Osmium

Norwegian:Native Osmium

Norwegian (Nynorsk):Native Osmium

Occitan:Òsmi

Polish:Osm

Portuguese:Ósmio

Romanian:Osmiu

Russian:Осмий

Serbian:Осмијум

Serbo-Croatian:Osmijum

Sicilian:Òsmiu

Simplified Chinese:自然锇

Slovak:Native Osmium

Slovenian:Osmij

Spanish:Osmio

Swedish:Native Osmium

Thai:ออสเมียม

Traditional Chinese:自然鋨

Turkish:Osmiyum

Ukrainian:Осмій

Varieties of Native OsmiumHide

Iridosmine	A variety of osmium rich in iridium (all natural osmium contains some iridium).
Rhodic Nevyanskite	A variety of Osmium containing Rhodium and Iridium.

Common AssociatesHide

Associated Minerals Based on Photo Data:

18 photos of Native Osmium associated with Native Iridium	(Ir,Os,Ru)
12 photos of Native Osmium associated with Isoferroplatinum	Pt₃Fe
7 photos of Native Osmium associated with Ruthenium	(Ru,Ir)
5 photos of Native Osmium associated with Cuproiridsite	(Cu,Fe)Ir₂S₄
5 photos of Native Osmium associated with Hollingworthite	(Rh,Pt,Pd)AsS
5 photos of Native Osmium associated with Laurite	RuS₂
5 photos of Native Osmium associated with Rutheniridosmine	(Ir,Os,Ru)
4 photos of Native Osmium associated with Native Platinum	Pt
4 photos of Native Osmium associated with Iridarsenite	(Ir,Ru)As₂
3 photos of Native Osmium associated with Sperrylite	PtAs₂

Related Minerals - Strunz-mindat Grouping Hide

1.AF.05	Rutheniridosmine	(Ir,Os,Ru)	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AF.05	Ruthenium	(Ru,Ir)	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AF.10	Rhodium	(Rh,Pt)	Iso. m3m (4/m 3 2/m) : Fm3m
1.AF.10	Native Platinum	Pt	Iso. m3m (4/m 3 2/m) : Fm3m
1.AF.10	Native Palladium	(Pd,Pt)	Iso. m3m (4/m 3 2/m) : Fm3m
1.AF.10	Native Iridium	(Ir,Os,Ru)	Iso. m3m (4/m 3 2/m) : Fm3m

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 Native OsmiumHide

mindat.org URL:

https://www.mindat.org/min-3037.html
Please feel free to link to this page.

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External Links:

Look for Native Osmium on Webmineral

Look for Native Osmium on Wikipedia

Look for Native Osmium on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

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References for Native OsmiumHide

Reference List:

Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.pp.111-113

Harris, D. C., Cabri, L. J. (1973) The nomenclature of the natural alloys of osmium, iridium and ruthenium based on new compositional data of alloys from world-wide occurrences. The Canadian Mineralogist, 12 (2) 104-112

Harris, D. C., Cabri, L. J. (1991) Nomenclature of platinum-group-element alloys: review and revision. The Canadian Mineralogist, 29 (2) 231-237

(2005) Osmium. Handbook of Mineralogy. Mineralogical Society of America

Localities for Native OsmiumHide

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.


Albania
Kukës County Tropojë ⓘ Bregu i Bibes deposit	www.env.duke.edu (n.d.)

Australia
New South Wales Clarke Co. ⓘ Aberfoyle River	Fawns (1905)
ⓘ Oban	Carlo Tortorella
ⓘ Sam river alluvials	Dana's System of Mineralogy
Cunningham Co. ⓘ Platina Lead	Webb (2014)
Kennedy Co. Fifield ⓘ Jerusalem Creek	Pavel.M. Kartashov (n.d.)
ⓘ Owendale Complex	Ma et al. (2023)
Richmond Co. Evans Head ⓘ Beach Deposit	G. A. Albertson Data
Rous Co. ⓘ Ballina	G. A. Albertson Data
	G. A. Albertson Data
ⓘ Shelly Beach	Carlo Tortorella
Tasmania Derwent Valley municipality ⓘ Adamsfield	Bottrill & Baker
ⓘ Halls Open Cut	Bottrill +2 other references
Huon Valley municipality Huon-Channel region Weld river district ⓘ Forster Prospect	Bottrill et al. (2008)
Waratah-Wynyard municipality Corinna-Savage River district Corinna ⓘ Corinna goldfield	Bottrill et al. (2008)
Heazlewood district ⓘ Bald Hill osmiridium field	Bottrill et al. (2008)
ⓘ Heazlewood River	Bottrill & Baker
West Coast municipality Rosebery district ⓘ Wilson River mineral field	Bottrill et al. (2008)
Western Australia Kalgoorlie-Boulder Shire Ora Banda Goldfield ⓘ Ora Banda PGE occurrence	Butt et al. (2003)
Menzies Shire Mount Ida Goldfield ⓘ David Copperfield Gold Mine (Copperfield; Mount Ida)	Simpson (1952)

Austria
Styria Leoben District Sankt Stefan ob Leoben Mitterberg ⓘ Unnamed chromite pit	Malitch et al. (2002)

Brazil
Bahia ⓘ Campo Formoso ultramafic complex	33rd International Geological Congress (2008)
Goiás Niquelândia ⓘ Niquelândia complex	Garuti et al. (2012)

Bulgaria
Blagoevgrad Province Blagoevgrad Municipality ⓘ Blagoevgrad placer deposits	Цинцов (1998)
Burgas Province Kameno Municipality ⓘ Konstantinovo	Atanasov (1990)
Sozopol Municipality ⓘ Varshilo	Anthony et al. (1990)

Canada
British Columbia Atlin Mining Division ⓘ O'Donnel River	Canadian Mineralogist (2005)
ⓘ Spruce Creek	Harris et al. (1973)
Surprise Lake ⓘ Ruby Creek	Anthony et al. (1990)
Cariboo Mining Division Likely ⓘ Bullion Pit	BC Government Mining Report - 1918
Liard Mining Division Dease Lake ⓘ Dease Creek	Canadian Mineralogist (2005)
Lillooet Mining Division ⓘ Fraser River (Lillooet) placer	Peatfield (n.d.)
Similkameen Mining Division Tulameen ⓘ Granite Creek	Harris et al. (1973)
ⓘ Tulameen River	Nixon et al. (1990)
ⓘ Lincoln Mine	Harris et al. (1973)
ⓘ Placer Deposits	Nixon et al. (1990)
Newfoundland and Labrador Newfoundland Baie Verte Peninsula ⓘ Middle Arm Brook prospect	Escayola et al. (2011)
Québec Chaudière-Appalaches Les Appalaches RCM Thetford Mines ⓘ Hall chrome pit	Canadian Mineralogist 28
Robert-Cliche RCM Beauceville ⓘ Rivière des Plantes placer	J.J. O'Neill and H.C. Gunning et al. (Pg. 55)
ⓘ Rivière-du-Loup	Traill (1983)
ⓘ Rivière Linière	Traill (1983)
Yukon Watson Lake mining district ⓘ Wolverine Creek	Fedortchouk et al. (eds.)
Whitehorse mining district Kluane District ⓘ Florence Creek	Barkov et al. (2008)

Chile
Araucanía Cautín Province ⓘ La Cabaña	González-Jiménez et al. (2016)
ⓘ La Cabaña serpentinites	Galdames et al. (2010)

China
Hebei Chengde Chengde County Gaositai ⓘ Gaositai Cr-PGE deposit (Gao District; Gaotai village)	Bilun Luo (1979) +1 other reference
ⓘ Kashinite occurrence	Yu Zuxiang (1985)
ⓘ Maying village	Yu Zuxiang (1998)
Hunan Huaihua Yuanling Co. Yuan river placers (Yuanjiang placers) ⓘ Yuanjiangite locality	Chen Lichang et al. (1994)
Inner Mongolia Hohhot City (Huhehaote Prefecture) Wuchuan County ⓘ Xiaonanshan Cu-Ni-(Pt-Pd) deposit	Chen Keqiao et al. (1981)
ⓘ Qinghai	Dianhao Huang et al. (1995)
Tibet Nagqu Amdo Co. (Anduo Co.) ⓘ Anduo Cr deposit	Anthony et al. (1990)
Dongqiao ophiolite (Donqiao ophiolite) ⓘ Dongqiao Cr-PGE deposit	Shi et al. (2006)
Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Nêdong Co. (Naidong Co.; Zedang Co.) ⓘ Zedang ophiolite	Guo et al. (2016) +1 other reference
Qusum Co. (Qusong Co.) ⓘ Luobusha ophiolite ("Luobusa ophiolite")	Wenji Bai et al. (2004)
Xinjiang Changji Autonomous Prefecture (Sanji Autonomous Prefecture) Manasi Co. (Manas Co.) ⓘ Manasi river placers	Jianxun Bai (1987)
Yunnan Chuxiong Yuanmou County ⓘ Zhubu Ni-Cu deposit	Shen (n.d.)
Dali Midu County ⓘ Jinbaoshan Pt-Pd-Ni-Cu deposit (Jingbaoshan Pt-Pd-Ni-Cu deposit)	Min Liu (2002)

Colombia
Cauca Department Guapí ⓘ Río Pilpe	Min Mag (1997)
Chocó Department Condoto ⓘ Alto Condoto intrusion	Aiglsperger et al. (2017)

Costa Rica
Guanacaste Province Nicoya Canton ⓘ Santa Elena ultramafic Nappe	Federica Zaccarini et al. (2010)

Czech Republic
Hradec Králové Region Trutnov District Dolní Olešnice Vestřev ⓘ Vestřev alluvial placer deposit	Pašava et al. (2015)

Ecuador
Carchi Province Awa Indian Preserve ⓘ Camumbi River gold placer	Barron et al. (2024)
Esmeraldas Province ⓘ Santiago River placers	Weiser et al. (1993)

Ethiopia
Benishangul-Gumuz Region Asosa Zone ⓘ Tumet river	Pavel.M. Kartashov (n.d.)
Oromia Region West Welega Zone Gimbi ⓘ Yubdo District (Joubdo District; Youbdo District; Joubda District)	Kebede H. Belete +2 other references
ⓘ Bir Bir River	Stanley et al. (2005)
ⓘ Joubdo Stream	Cabri et al. (1981)

Finland
ⓘ Lapland	Törroos Ragnar +1 other reference
Keminmaa ⓘ Kemi Mine	Stanislav S. Gornostayev (2000)

France
Auvergne-Rhône-Alpes Ain Belley Loyettes ⓘ Loyettes quarry	Ducluzaux (2022)
Murs-et-Gélignieux ⓘ Courdan gravel pit	Ducluzaux (2018)
Bourg-en-Bresse Lescheroux ⓘ Reyssouze River placer	Lorand et al. (2018)
Rhône Lyon Saint-Pierre-de-Chandieu ⓘ Cheval Blanc quarry	Ducluzaux (2022)
Savoie Chambéry Marcieux ⓘ Marcieux quarry	Ducluzaux (2021) +1 other reference
New Caledonia Southern Province Pirogues River ⓘ Pirogues ophiolite	Economic Geology: 89: 1454-1468 +1 other reference
Yaté ⓘ Ni River estuary	Auge et al. (1995)
Provence-Alpes-Côte d'Azur Bouches-du-Rhône Aix-en-Provence Peyrolles-en-Provence ⓘ Durance river alluvial deposits	Y. Moëlo : "Compte-rendu de la ... +2 other references
Istres Port-Saint-Louis-du-Rhône ⓘ Napoléon beach	Ducluzaux (2022)

Germany
Bavaria Lower Bavaria Straubing ⓘ Danubian fluvial placer (Donauplatin placer)	Dill et al. (2009)
ⓘ Unnamed placers	Dill et al. (2021)
Rhineland-Palatinate Germersheim Jockgrim Rheinzabern ⓘ Holcim gravel pit	Oberthür et al. (2016)

Greece
Central Macedonia Kilkis Kilkis ⓘ Vathi	www.researchgate.net (n.d.) +1 other reference
Eastern Macedonia and Thrace Evros Orestiada ⓘ Milia	Economou-Eliopoulos et al. (2019)
Thessaly Trikala Meteora ⓘ Pefki	Kapsiotis et al. (2011)
Western Macedonia Grevena Grevena ⓘ Aetoraches Mine	Auge (1985) +1 other reference
ⓘ Voidolakkos	Kapsiotis et al. (2006)
Kozani Voio ⓘ Vourinos Mine	Auge (1985)

India
Odisha Keonjhar District ⓘ Baula Complex	Canadian Mineralogist 40:277-309
ⓘ Nuasahi Complex	Prichard et al. (2018)

Indonesia
South Kalimantan Province Banjar Regency ⓘ Tanah Laut (Pontijn)	Frank Keutsch specimen +1 other reference

Iran
Kerman Province Jiroft County Esfandaqeh ⓘ Sikhuran Mine	Jannessary et al. (2012)

Japan
Ehime Prefecture Uchiko ⓘ Iyoki	Nishio-Hamane et al. (2018)
Hokkaidō Prefecture Kamikawa Subprefecture Shibetsu City ⓘ Soeushinai PGE deposit	- (2005)
ⓘ Teshio gold-PGM placers	Urashima et al (1972) +1 other reference
Uryu District ⓘ Uryugawa	Masutomi Museum specimen (Kyoto)
ⓘ Horokanai placer	Robert C. Smith II Ph.D. P.G.
ⓘ Tadoshi	Suzuki (1953)
Rumoi Subprefecture Obira (Rumoi District) ⓘ Kamikinenbetsu River	NISHIO–HAMANE et al. (2022)
ⓘ Obirashibe River	Dr Daisuke Nishio-Hamane +1 other reference
ⓘ Obira coast	NISHIO–HAMANE et al. (2022)
Tomamae District Haboro ⓘ Ainusawa River	NISHIO–HAMANE et al. (2022)
ⓘ Moshosanbetsu River	NISHIO–HAMANE et al. (2022)
Shosanbetsu ⓘ Minamichiyoda	NISHIO–HAMANE et al. (2022)
Tomamae ⓘ Tomamae coast	NISHIO–HAMANE et al. (2022)
Sorachi Subprefecture Numata ⓘ Numatapongawa	Dr Daisuke Nishio-Hamane +1 other reference
Yubari District ⓘ Yubari placers	Sadanaga et al. (1974)
Sōya Subprefecture Esashi District ⓘ Peichan river	Mitsubishi Corporation mineral ...
ⓘ Tomarinaigawa River	Sadanaga et al. (1974)
Kumamoto Prefecture Shimomashiki District Misato ⓘ Haraigawa	NISHIO–HAMANE et al. (2019)

Kazakhstan
Aktobe Region Kargaly District ⓘ Kempirsai Cr deposit	doi.org (n.d.) +2 other references
Main ore field Dzharlybutak Ore Group ⓘ Almaz-Zhemchuzhina deposit	Saveliev et al. (2023)
ⓘ Geofizicheskoe-VII deposit	Saveliev et al. (2023)

Morocco
Drâa-Tafilalet Region ⓘ Bou Azzer mining district	S. Weiß: Lapis 31 (7/8)

Myanmar
Sagaing Region Monywa District ⓘ Chindwin river	Hagen et al. (1990) +1 other reference

New Zealand
Tasman Region Collingwood ⓘ Ironstone Creek	Christie et al. (1994)

Norway
Trøndelag Leka ⓘ Leka Island	Pedersen et al. (1993) +1 other reference
Røros ⓘ Østhammeren (Osthammeren)	Nilsson (1990)
Vestland Vik ⓘ Raudberg Talc deposits	Nilsson et al. (1998)

Oman
Al Buraimi Governorate Northern Oman Ophiolite ⓘ Wadi Hilti	Ahmed et al. (2003)

Papua New Guinea
Central Province Port Moresby area ⓘ Brown River	www.minport.com (n.d.)
Enga Province ⓘ Kompiam-Ambum District	Mineralogy and Petrology 68:159-176 (2000)
Oro Province ⓘ Aikora River	[AmMin 85:1325] +1 other reference

Philippines
Visayas Eastern Visayas Region Samar Island Eastern Samar ⓘ Llorente river	Oberthür et al. (2017)

Russia
Altai Republic Turochaksky District ⓘ Kaurchak River	Nesterenko +4 other references
Amur Oblast ⓘ Dambuki ore cluster	Stepanov et al. (2007)
Bashkortostan Burzyansky District Kraka ophiolite ⓘ 33 prospect	Garuti et al. (2021)
Uchalinsky District ⓘ Unspecified gold placer	Pavel M. Kartashov analytical data 2018
Buryatia Baunt District Vitim Plateau ⓘ Aunik River	Airiyants et al. (2020)
Okinsky District ⓘ Ulan-Sar’dag Ophiolite	Kiseleva +3 other references
ⓘ Kitoy River placers	Airiyants et al. (2021)
Chelyabinsk Oblast Bredinsky District Gogino ⓘ Kazan Au-bearing placers	E.V. et al. (2025)
Chebarkulsky District Nepryakhino ⓘ Ingul gold-bearing placer	E.V. et al. (2025)
ⓘ Miass River	Pavel.M. Kartashov (n.d.)
ⓘ Kialim placer	Zaykov et al. (2017)
ⓘ Maly Iremel placer	Zaykov et al. (2017)
Chukotka Autonomous Okrug Bilibinsky District Kolyma area ⓘ Bol'shoi Anyui River Basin	Razin et al. (1989)
Baimka River Aluchinskii Massif (Aluchin horst) ⓘ Baimka placer deposit	Gornostayev et al. (1999)
Pekul'ney Range (Pekul'nei Range) Northern Pekul'ney River (Northern Pekul'nei River; Northern Pekul'neyveem River) ⓘ Placer deposit	Pekov (1998)
Jewish Autonomous Oblast ⓘ Poperechny Fe-Mn deposit	Nevstruev et al. (2019) +2 other references
Kamchatka Krai Koryak Okrug ⓘ Chirynaisky Massif	Mandarino (2000)
Karaginsky District ⓘ Pustaya River	Tolstykh et al. (2000)
Olyutorsky district ⓘ Epilchik mafic-ultramafic complex	Sidorov et al. (2021)
Korf ⓘ Gal'moenan ultrabasic massif	Sidorov et al. (2004) +3 other references
ⓘ Ledyanoy Creek placer	Vlasov et al. (2002)
ⓘ Levtyrinyvayam River placer	Tolstykh et al. (2004) +1 other reference
ⓘ Penisty Creek placer	Tolstykh et al. (2004)
ⓘ Matysken complex	Cabri et al. (2022)
ⓘ Matysken River	Kutyrev et al. (2020) +1 other reference
ⓘ Prizhimny Creek	Kutyrev et al. (2018)
Ust'-Bel'skii ultrabasic Massif ⓘ Tolovka River placer	Razin et al. (1981)
Sobolevsky District ⓘ Maior River (Brook)	Подлипский et al. (1999)
ⓘ Mount Filipp	Pekov (1998) +1 other reference
Ust-Kamchatsky District ⓘ Olkhovaya–1 River placer	Tolstykh et al. (2009)
ⓘ Unspecified Pt-Au placer
Kemerovo Oblast ⓘ Koura River	Nesterenko +7 other references
Khabarovsk Krai Ayano-Maysky district ⓘ Chad Massif	Pekov (1998) +2 other references
ⓘ Konder alkaline-ultrabasic massif	Laflamme et al. (1997)
Pravo-Sooliysk gold-bearing ore-placer cluster ⓘ Bolotisty deposit	Lavrik et al. (2020)
Khanty-Mansi Autonomous Okrug ⓘ Bolshaya Polya River	Novgorodova et al. (1995) +1 other reference
ⓘ Krasnoyarsk Krai	...
Lysanskiy dunite-peridotite-gabbro complex ⓘ Sisim Placer Zone	Barkov et al. (2018) +1 other reference
ⓘ River Ko placer deposit	Barkov et al. (2021) +1 other reference
Maimecha and Kotui Rivers Basin ⓘ Bor-Uryakh massif	Malitch K.N. et al. (2001) +1 other reference
ⓘ Gulinskii massif (Guli)	Pavel.M. Kartashov (n.d.) +1 other reference
ⓘ Burlakovsky placer	Merkle et al. (2012)
ⓘ Ingaringda placer	Merkle et al. (2012)
Taymyrskiy Autonomous Okrug Taimyr Peninsula ⓘ Kunar placer deposit	Malitch et al. (2022)
ⓘ Unga placer deposit	Malitch et al. (2022)
Western Sayan range ⓘ Dunzhugur Ophiolite Massif	Kiseleva et al. (2024)
ⓘ Kizir-Burluksky massif	Yurichev et al. (2021)
Yermakovsky District ⓘ Bolshoy Khailyk River placers	Barkov et al. (2019) +1 other reference
ⓘ River Rudnaya	Barkov et al. (2018)
ⓘ Moscow Oblast	Feklichev et al. (1998)
Murmansk Oblast Monche tundra intrusion ⓘ Nud II mine
ⓘ Monchegorsk	Yury L. Voytekhovsky (2008)
ⓘ Nyud-2 deposit	Chashchin et al. (2021)
ⓘ Sopcheozerskoe deposit (Sopcheozero)	Neradovsky et al. (2008)
Serpentinite Belt ⓘ Pados-Tundra Complex	Barkov +4 other references
Primorsky Krai Dalnegorsk Urban District Dalnegorsk ⓘ Maiskoe deposit	ROGULINA et al. (2004)
Khanka lake ⓘ Zolotaya river placers	Shcheka et al. (2004)
ⓘ Sakha	[World of Stones 12:49]
Aldan ⓘ Inagli Massif	Pekov (1998) +2 other references
Anabar River basin ⓘ Mayat-Vodorazdel’nyi	Okrugin et al. (2023) +1 other reference
Sayan Mountains ⓘ Il’chir ophiolite belt	Kiseleva et al. (2014)
Sverdlovsk Oblast Alapayevsk Urban Okrug ⓘ Neiva River alluvials	Pavel.M. Kartashov (n.d.)
Kachkanar ⓘ Svetloborsky intrusion	Stepanov et al. (2023)
ⓘ Veresovoborsky intrusion	Stepanov et al. (2019) +1 other reference
Nizhneserginsky District ⓘ Nizhne Sergi area	Sharygin et al. (2022)
Nizhnii Tagil ⓘ Nizhnetagilskii massif (Nizhne-Tagilskii)	Anikina et al. (2014)
Nizhnyaya Tura ⓘ Is River	Pavel.M. Kartashov (n.d.)
Svetly Bor ⓘ Glubokinskoe placer	Stepanov et al. (2019)
ⓘ Travyanistyi placer	Stepanov et al. (2019)
ⓘ Vershinniy placer	Stepanov et al. (2019)
ⓘ Veresovka River	Stepanov et al. (2019)
ⓘ Veresovyi Bor	Stepanov et al. (2020)
Novolyalinsky District ⓘ Kytlym complex (Kytlym massif)	Garuti et al. (2002)
Novouralsk ⓘ Verkhneivinsk
Prigorodny District ⓘ Soloveva Mountain	Johan (2006)
ⓘ Aleksandrov Log Pt deposit	Pekov (1998)
ⓘ Sysertsky District	Pavel.M. Kartashov (n.d.)
Yekaterinburg ⓘ Uktus complex	Garuti et al. (2002) +2 other references
ⓘ Syum-Keu Ophiolite Massif	Shabutdinov et al. (2024)
Tuva Kaa-Khemsky District Kaakhem ophiolite belt ⓘ Kundus placer	Oidup et al. (2012) +1 other reference
Yamalo-Nenets Autonomous Okrug ⓘ Rai-Iz Ophiolite Massif	Seltmann et al. (2010)

Serbia
Central Serbia Rasina District Trstenik Veluće ⓘ Veluce ophiolite complex	Krstic et al. (1997)

Sierra Leone
Western Area Freetown layered complex ⓘ Big Water	Bowles et al. (2018)

Slovakia
Košice Region Košice-okolie District Jasov ⓘ Serpentinite outcrops	Radvanec et al. (2016)

South Africa
Limpopo Sekhukhune District Municipality Fetakgomo Tubatse Local Municipality ⓘ Driekop Mine	Melcher et al. (2007)
Steelpoort ⓘ Onverwacht Mine	Oberthür et al. (2021)
ⓘ Witwatersrand goldfield	Cairncross et al. (1995)

Tanzania
Njombe Region ⓘ Nkenga complex	Evans et al. (2012)

Turkey
Hatay Province Arsuz ⓘ Kizildag ophiolite	Kozlu et al. (2010)
Muğla Province Menteşe District Muğla ophiolite ⓘ Chromitite occurrence	Uysal et al. (2009)

UK
Scotland Shetland Islands ⓘ Fetlar	Anthony et al. (1990)
ⓘ Unst	Anthony et al. (1990)
ⓘ Cliff Quarry	Prichard et al. (1988)
ⓘ Harold's Grave Quarry	Prichard et al. (1988) +1 other reference

USA
Alaska Bethel Census Area Goodnews Bay ⓘ Salmon River - Red Mountain District	Canadian Mineralogist: 22: 543-552.
ⓘ Clara Creek	Snetsinger (1973)
ⓘ Dowry Creek mine	USGS Open-File Report 01-269 +1 other reference
ⓘ Fox Gulch	Anthony et al. (1990)
ⓘ Platinum Creek	USGS Open-File Report 01-269
Ketchikan Gateway Borough ⓘ Continental; Chevelle; Cannery Creek Prospects	- (2008)
ⓘ Jaguar Prospect	- (2008)
ⓘ Lexus Prospect	- (2008)
ⓘ Mount Burnett Zone Prospect	- (2008)
ⓘ North Zone Prospect	- (2008)
ⓘ West Cobra; East Cobra Prospects	- (2008)
California Butte County Cherokee Mining District ⓘ Cherokee	Silliman et al. (1873c) +1 other reference
Calaveras County East Belt Mokelumne Hill Mining District Mokelumne Hill ⓘ Buffalo-What-Cheer Mines	- (2005)
Del Norte County Coastal Range ⓘ Lower Klamath River	Hittell (1868) +1 other reference
Humboldt County Eureka Humboldt Bay ⓘ Unspecified PGE deposit [2]	Richthofen (1865) +1 other reference
Klamath Mountains Willow Creek Mining District Willow Creek (China Flat) China Flat ⓘ Unnamed PGE occurrence [1]	Horton (1912) +1 other reference
Mariposa County West Belt Hornitos Mining District Quartzburg Quartzburg School ⓘ Burns Creek Mine	Min Mag (1997)
Mendocino County Coastal Range Calpella ⓘ Unnamed PGE placer deposit [2]	Logan (1919) +2 other references
Nevada County North San Juan Mining District North San Juan ⓘ Yuba River placers	Sjoberg et al. (1980) +2 other references
Placer County Emigrant Gap Mining District (Blue Canyon Mining District) Texas Hill ⓘ North Fork American River placer	Genth (1852) +2 other references
Plumas County Edmanton Mining District (Meadow Valley Mining District) Gopher Hill ⓘ Silver Creek	Crawford (1894) +1 other reference
Sacramento County Folsom Mining District Folsom ⓘ American River	Sjoberg et al. (1980) +2 other references
Shasta County Cottonwood Creek ⓘ Cottonwood Creek headwaters area	Mining and Scientific Press (1901) +1 other reference
Klamath Mountains Harrison Gulch Mining District Platina ⓘ Olympia Placer Mine	- (2005) +2 other references
Trinity County Klamath Mountains Junction City Mining District Junction City ⓘ Main Channel Trinity River	Horton (1912) +1 other reference
ⓘ Placer Development Company Mine	- (2005) +1 other reference
Salmon Mountains North Fork Mining District ⓘ North Fork Trinity River Canyon	Petrov (n.d.) +1 other reference
Weaverville District Douglas City ⓘ Trinity River placer	Sjoberg et al. (1980) +2 other references
Willow Creek Mining District Salyer ⓘ Koon Ranch placer deposit	- (2005)
Tuolumne County Stanislaus ⓘ Unnamed Stanislaus River Au-PGE placers [1]	Genth (1852) +2 other references
Yuba County Hammonton Mining District (Yuba River Mining District) Hammonton ⓘ Yuba River placers (Yuba Mine)	Sjoberg et al. (1980) +2 other references
Nevada Clark County New York Mountains Crescent Mining District ⓘ Gingerload prospect	NBMG ofr 88-1
New Mexico Sierra County Hillsboro Mining District ⓘ Wicks Gulch placers	- (2005)
ⓘ Las Animas Placer District	- (2005)
Oregon Coos County ⓘ Coos Bay	Bird et al. (1980)
Curry County Beach Area ⓘ Meek's Placer (Eckis)	- (2005)
Sixes River Mining District ⓘ Corbin Property	- (2005)
ⓘ Divelbiss No. 2	- (2005)
Jackson County Applegate Mining District ⓘ Kubli Ranch placer	Lyon et al. (1997)
Josephine County Josephine Creek Mining District ⓘ Josephine Creek placers	...
Pennsylvania Lancaster County ⓘ Fulton Township	Smith et al. (2008) +1 other reference
Washington Clallam County ⓘ Shi Shi Beach Placer	Derkey et al. (1990, November) +1 other reference

Zimbabwe
Midlands Shurugwi District ⓘ Umtebekwe River	Oberthür et al. (2013)

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Native Osmium

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