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Sternbergite

A valid IMA mineral species - grandfathered
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About SternbergiteHide

08553510014946661368904.jpg
Kaspar Maria von Sternberg
Formula:
AgFe2S3
Colour:
Golden brown, tarnishes violet-blue
Lustre:
Metallic
Hardness:
1 - 1½
Specific Gravity:
4.101 - 4.215
Crystal System:
Orthorhombic
Name:
Named after Count Caspar Maria Sternberg (1761-1838), botanist and a founder of the National Museum of Prague (Czech Republic).
Dimorph of:
A rare mineral occurring in Pinchbeck brown (yellowish brown with metallic lustre), flexible(!), mm-sized tabular crystals. It and its dimorph argentopyrite are often pseudomorphed to iron oxides which collapse to dust when poked with a needle. On the way to the oxide replacements, partial pseudomorphs of pyrite or marcasite after either dimorph confused early workers.


Unique IdentifiersHide

Mindat ID:
3767
Long-form identifier:
mindat:1:1:3767:5
GUID
(UUID V4):
de7bdc44-d95f-4979-aa2e-0ef68c1b337c

IMA Classification of SternbergiteHide

Approved, 'Grandfathered' (first described prior to 1959)
First published:
1827

Classification of SternbergiteHide

2.CB.65

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
2.9.12.1

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
3.2.16

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
2 : Sulphides etc. of Ag

Mineral SymbolsHide

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

SymbolSourceReference
SrnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of SternbergiteHide

Metallic
Transparency:
Opaque
Colour:
Golden brown, tarnishes violet-blue
Streak:
Black
Hardness:
1 - 1½ on Mohs scale
Hardness:
VHN50=31 - 44 kg/mm2 - Vickers
Tenacity:
Flexible
Cleavage:
Perfect
on {001}
Density:
4.101 - 4.215 g/cm3 (Measured)    4.275 g/cm3 (Calculated)

Optical Data of SternbergiteHide

Anisotropism:
Strong, bluish and reddish to lilac, reddish brown to light green with p-urplish pink shades
Reflectivity:
WavelengthR1R2
400nm18.2%30.1%
420nm19.0%31.0%
440nm19.8%32.0%
460nm20.6%33.1%
480nm21.6%34.0%
500nm22.4%34.9%
520nm23.2%35.7%
540nm23.9%36.4%
560nm24.5%37.0%
580nm25.2%37.5%
600nm26.0%38.0%
620nm26.7%38.2%
640nm27.3%38.3%
660nm27.7%38.2%
680nm28.0%38.1%
700nm28.1%37.9%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Light brown
Pleochroism:
Visible
Comments:
In browns

Chemistry of SternbergiteHide

Mindat Formula:
AgFe2S3

Crystallography of SternbergiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 6.615(2) Å, b = 11.639(4) Å, c = 12.693(4) Å
Ratio:
a:b:c = 0.568 : 1 : 1.091
Unit Cell V:
977.26 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Thin pseudohexagonal basal plates, rosettes and fan-like aggregates.
Twinning:
Lamellar on {130}
Comment:
Space group Ccmb (non-standard setting).

Crystallographic forms of SternbergiteHide

Crystal Atlas:
Image Loading
Click on an icon to view
Sternbergite - Tabular {001}
Sternbergite - Contact twin on {130}
3d models and HTML5 code kindly provided by www.smorf.nl.

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Edge Lines | Miller Indices | Axes

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Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014818SternbergitePertlik F (1987) Crystal structure of sternbergite, AgFe2S3 Neues Jahrbuch fur Mineralogie, Monatshefte 1987 458-4641987Medenec, Krusne hory Mts, Czechoslovakia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.780 Å(100)
2.785 Å(70)
3.226 Å(60)
2.616 Å(50)
4.281 Å(30)
1.938 Å(30)
1.893 Å(30)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Geological Setting:
Hydrothermal veins, Co-Ni-Ag assemblage

Type Occurrence of SternbergiteHide

General Appearance of Type Material:
Rose-like aggregates and globules with a drusy surface. Massive material has the habit of coarse grained mica.
Place of Conservation of Type Material:
National Museum, Prague, Czech Republic.

Synonyms of SternbergiteHide

Other Language Names for SternbergiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
26 photos of Sternbergite associated with ProustiteAg3AsS3
11 photos of Sternbergite associated with SilverAg
11 photos of Sternbergite associated with PyriteFeS2
7 photos of Sternbergite associated with XanthoconiteAg3AsS3
5 photos of Sternbergite associated with Goethiteα-Fe3+O(OH)
4 photos of Sternbergite associated with PyrargyriteAg3SbS3
3 photos of Sternbergite associated with AcanthiteAg2S
3 photos of Sternbergite associated with ArgentopyriteAgFe2S3
2 photos of Sternbergite associated with StephaniteAg5SbS4
2 photos of Sternbergite associated with ArsenicAs

Related Minerals - Strunz-mindat GroupingHide

2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.RichardsiteZn2CuGaS4Tet. 4 2m : I4 2m
2.CB.GachingiteAu(Te1-xSex)Orth. mmm (2/m 2/m 2/m)
2.CB.TolstykhiteAu3S4Te6Tric. 1 : P1
2.CB.HanswilkeiteKFeS2Mon. 2/m : B2/b
2.CB.AuroselenideAuSeMon. 2/m : B2/m
2.CB.Ruizhongite(Ag2◻)Pb3Ge2S8Iso. 4 3m : I4 3d
2.CB.OkruginiteCu2SnSe3Mon. m : Bb
2.CB.05aColoradoiteHgTeIso. 4 3m : F4 3m
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05aStilleiteZnSeIso. 4 3m : F4 3m
2.CB.05aTiemanniteHgSeIso. 4 3m : F4 3m
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.05aIshiharaite(Cu,Ga,Fe,In,Zn)SIso. 4 3m : F4 3m
2.CB.07aShenzhuangiteNiFeS2Tet. 4 2m : I4 2d
2.CB.07aUnnamed (Cu-Mn-Sn Sulpide)Cu2MnSnS4
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aEskeborniteCuFeSe2Tet. 4 2m : P4 2c
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
2.CB.10bMooihoekiteCu9Fe9S16Tet. 4 2m : P4 2m
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso. m3m (4/m 3 2/m) : Pn3m
2.CB.10aRoquesiteCuInS2Tet. 4 2m : I4 2d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m
2.CB.10aLaforêtiteAgInS2Tet. 4 2m : I4 2d
2.CB.10aUnnamed (Cu-Zn-In Sulphide)CuZn2InS4
2.CB.10aUM1984-30-S:CuFeSnCu2Fe2Sn3S7
2.CB.10cOmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aFerrokësteriteCu2FeSnS4Tet. 4 : I4
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aKësterite Cu2ZnSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet. 4 2m : I4 2m
2.CB.15bMohiteCu2SnS3Mon.
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.CB.15cStannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth. 2 2 2 : I2 2 2
2.CB.15aVelikiteCu2HgSnS4Tet. 4 : I4
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.17a vArsenic-bearing RenieriteCu11GeAsFe4S16
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.30Argyropyritenear Ag2Fe7S11
2.CB.30ColusiteCu13VAs3S16Iso. 4 3m : P4 3n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32Iso. 4 3m : P4 3m
2.CB.30NekrasoviteCu26V2(Sn,As,Sb)6S32Iso. 4 3m : P4 3n
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16Iso. 4 3m : P4 3m
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso. 4 3m : P4 3n
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32Iso. m3m (4/m 3 2/m)
2.CB.30FrieseiteAg2Fe5S8 (?)
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
2.CB.42LingbaoiteAgTe3Trig. 3m : R3m
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.45MaletoyvayamiteAu3Se4Te6Tric. 1 : P1
2.CB.47MurchisiteCr5S6Trig. 3m (3 2/m) : P3 1c
2.CB.50ZincselenideZnSe
2.CB.50WassoniteTiSTrig. 3m (3 2/m) : R3m
2.CB.52DzhezkazganiteReMoCu2PbS6 ?Trig. 3m : R3m
2.CB.55aCubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.55bIsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
2.CB.60PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.CB.60RaguiniteTlFeS2Orth.
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.70SulvaniteCu3VS4Iso. 4 3m : P4 3m
2.CB.75VulcaniteCuTeOrth. mmm (2/m 2/m 2/m)
2.CB.80EmpressiteAgTeOrth. mmm (2/m 2/m 2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

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 SternbergiteHide

References for SternbergiteHide

Localities for SternbergiteHide

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.
Australia
 
  • Queensland
    • Cloncurry Shire
      • Kuridala
Alan Melbournes collection
    • Mareeba Shire
Harris et al. (2003)
    • McKinlay Shire
      • McKinlay
Singer et al. (2009)
Austria
 
  • Carinthia
    • Spittal an der Drau District
      • Reißeck
        • Kolbnitz
Ucik et al. (1970) +1 other reference
  • Tyrol
    • Innsbruck-Land District
      • Axams
Vavtar (1995)
Bosnia and Herzegovina
 
  • Federation of Bosnia and Herzegovina
    • Central Bosnia Canton
      • Gornji Vakuf-Uskoplje
Jurković et al. (1994)
Canada
 
  • British Columbia
    • Atlin Mining Division
Peatfield (n.d.)
Peatfield (n.d.)
    • Greenwood Mining Division
      • Beaverdell
Ingelson et al. (1989)
  • Nunavut
    • Itchen Lake
      • Izok Lake
Harris et al. (1984)
  • Ontario
    • Timiskaming District
      • Cobalt-Gowganda region
        • Cobalt area
          • Coleman Township
Ottawa Citizen +2 other references
China
 
  • Guangdong
    • Zhanjiang
      • Lianjiang Co.
Zuwei Wang and Yongzhang Zhou (2002)
  • Inner Mongolia
    • Hulunbuir City (Hulunbei'er Prefecture)
      • New Barag Right Banner (Xin Barag Youqi)
Dong Zhensheng et al. (1996)
  • Jiangxi
    • Shangrao
      • Wannian Co.
Dong Zhensheng et al. (1996)
  • Liaoning
    • Yingkou
      • Gaizhou City
Qinghua Xu et al. (2014)
  • Shanxi
    • Datong
      • Lingqiu County
Qingrong Zheng et al. (2012)
Jin Chen and Yuelin Tang (1993) +3 other references
Czech Republic
 
  • Central Bohemian Region
    • Příbram District
      • Dubno
C.Auer (2016)
      • Příbram
        • Březové Hory
Škácha P. et al. (2007)
  • Karlovy Vary Region
    • Karlovy Vary District
Am Min 54 (1969)
www.mindat.org (n.d.) +4 other references
www.jgeosci.org (n.d.)
  • Ústí nad Labem Region
    • Chomutov District
Hyrsl et al. (2009)
    • Teplice District
      • Moldava
Finland
 
  • Pirkanmaa
    • Ylöjärvi
Clark Alan H. & Taylor et al. (1)
France
 
  • Brittany
    • Finistère
      • Châteaulin
        • Laz
www.micromineral.org (n.d.)
  • Lorraine
    • Vosges
      • District de La-Croix-aux-Mines
        • La-Croix-aux-Mines
          • La Croix-aux-Mines mines
J.-L. Hohl: "Minéraux et Mines du Massif Vosgien" (Mulhouse)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Lörrach
        • Aitern
Walenta (1992)
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Waidhaus
          • Hagendorf
www.berthold-weber.de (2001) +1 other reference
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • Mühltal
          • Nieder-Beerbach
Belendorff (2021)
  • Lower Saxony
    • Goslar District
      • Braunlage
  • North Rhine-Westphalia
    • Arnsberg
      • Hochsauerlandkreis
        • Bestwig
Wittern (2001)
  • Saxony
    • Erzgebirgskreis
      • Bärenstein
Baumann et al. (2000)
Wittern (2001)
      • Marienberg
        • Lauta
Wittern (2001)
      • Schneeberg
        • Neustädtel
Lapis 30 (7/8)
          • Wolfgangmaßen
Lapis 30 (7/8)
      • Schwarzenberg
Wittern (2001)
      • Wolkenstein
        • Gehringswalde
Ramdohr (1969)
    • Mittelsachsen
Naumann et al. (1898)
        • Zug
90. +1 other reference
Hungary
 
  • Pest County
    • Szob District
      • Márianosztra
Szakáll & Jánosi. Minerals of Hungary
Japan
 
  • Aomori Prefecture
    • Kamikita District
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) +1 other reference
  • Hokkaidō Prefecture
    • Ishikari Subprefecture
      • Chitose City
Yamada (2004)
  • Kagoshima Prefecture
    • Suzuyama mining district
Matsukuma (1962)
  • Miyazaki Prefecture
    • Hyuga City
T. Matsukuma (1958)
Kazakhstan
 
  • East Kazakhstan Region
    • Kurshim District
Глоба В.А. Месторождение Манка - новый геолого-промышленный тип месторождений золота. // Изв. НАН РК et al. (403)
Mexico
 
  • Hidalgo
    • Pachuca Municipality
Panczner (1987)
  • Mexico
    • Temascaltepec Municipality
      • Temascaltepec de González (Temascaltepec)
Camprubi
Morocco
 
  • Drâa-Tafilalet Region
    • Tinghir Province
      • Tinghir Cercle
        • Imiter mining district
Samira
Barral et al. (2008)
  • Marrakesh-Safi Region
    • Marrakech Prefecture
      • Bour Cercle
Félix
  • Souss-Massa Region
    • Taroudant Province
      • Taliouine Cercle
        • Askaouen Caïdat
          • Jebel Siroua
Petruk (1975)
Nigeria
 
  • Plateau
    • Jos Plateau
Wolfgang Hampel
Norway
 
  • Buskerud
    • Kongsberg
      • Overberget Mining Field
Brünnich (1777) +1 other reference
Brünnich (1777) +1 other reference
      • Underberget Mining Field
Cronstedt (1758) +1 other reference
Johnsen (1986)
  • Nordland
    • Hemnes
      • Bleikvasslia
Cook et al. (1998)
  • Oslo
    • St. Hanshaugen
Nilsen et al. (1991)
Peru
 
  • Cajamarca
    • Cajamarca Province
      • Encañada District
        • Michiquillay
Singer et al. (2008)
Poland
 
  • Lower Silesian Voivodeship
    • Karkonosze County
Mochnacka et al. (2015)
Romania
 
  • Maramureș County
    • Baia Mare
Papp et al. (2007)
Russia
 
  • Altai Krai
    • Zmeinogorsky District
Sejkora et al. (2023)
  • Chukotka Autonomous Okrug
    • Okhotsk-Chukotka belt
Kolova et al. (2021)
  • Kamchatka Krai
    • Yelizovsky District
[Der Aufschluss 1995:4 p163-180] +1 other reference
[Der Aufschluss 1995:4 p.163-180] +1 other reference
  • Krasnoyarsk Krai
Kovalev et al. (2023)
    • Maimecha and Kotui Rivers Basin
Sorokhtina et al. (2019)
  • Magadan Oblast
    • Omsukchansky District
Makshakov +2 other references
Kravtsova et al. (2017)
Savva et al. (2007)
  • Primorsky Krai
    • Dalnegorsk Urban District
Grant et al. (2001)
ROGULINA et al. (2004)
Dobrovol’skaya et al. (2008)
South Korea
 
  • North Chungcheong Province
Choi et al. (2005)
Choi et al. (2005)
    • Jincheon County
Choi et al. (2005)
Spain
 
  • Castile-La Mancha
    • Guadalajara
Mineralogical Record (3)
Jordi Fabre +1 other reference
Sweden
 
  • Örebro County
    • Hällefors
      • Grythyttan
Burke et al. (1990)
  • Västerbotten County
    • Malå
Rincon (2022)
    • Skellefteå
      • Skellefte mining district
        • Boliden
UK
 
  • England
    • Cumbria
      • Eden
        • Alston Moor
          • Garrigill
Ixer et al. (1987)
USA
 
  • Arizona
    • Cochise County
      • Dos Cabezas Mountains
        • Dos Cabezas Mining District (Two Heads Mining District)
          • Dos Cabezas
            • LeRoy Mine group
Anthony et al. (1995)
  • California
    • Riverside County
      • Jurupa Valley
        • Crestmore
Murdoch (1966)
  • Colorado
    • Clear Creek County
      • Georgetown District
        • Silver Plume
Eckel et al. (1997)
  • Nevada
    • Lander County
Castor et al. (2004)
    • Storey County
R&M 74:6 p380-390
  • New Mexico
    • Catron County
      • Mogollon Mountains
Northrop et al. (1996)
    • Grant County
Northrop et al. (1996)
    • Socorro County
Northrop et al. (1996)
 
Mineral and/or Locality  
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