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Uytenbogaardtite

A valid IMA mineral species
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About UytenbogaardtiteHide

09790510014946340068981.jpg
Willem Uytenbogaardt
Formula:
Ag3AuS2
Colour:
Greyish-white
Lustre:
Metallic
Hardness:
2
Specific Gravity:
8.40 (Calculated)
Crystal System:
Trigonal
Name:
Named in 1978 by M. D. Barton, C. Kieft, E. A. J. Burke, and I. D. Oen in honor of Willem Uytenbogaardt (July 18, 1918 Amsterdam, The Netherlands - May 25, 2012 Aalsmeer, The Netherlands), professor of geology, Technical University of Delft (The Netherlands).
May form as exsolutions in (originally Au-bearing) acanthite. Structurally different from (stoichiometrically similar) petzite and fischesserite, although forming a series with the latter. Often found in 0.1mm grains, in clusters.

Analogous to Cu-bearing Cu-Au-ordered makotoite.

Chemically similar to petrovskaite; compare UM2002-13-S:AgAuSe.

The structure is based on S-atoms sublattice in distorted bcc arrangement. There are (1) tri-atomic linear S-Au-S groups and (2) Ag atoms bonded to four S atoms (from four different linear groups), in distorted tetrahedral set.


Unique IdentifiersHide

Mindat ID:
4127
Long-form identifier:
mindat:1:1:4127:6
GUID
(UUID V4):
24e4793f-d9b5-495e-aed7-69e0529c0557

IMA Classification of UytenbogaardtiteHide

Classification of UytenbogaardtiteHide

2.BA.75

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
2.4.3.1

2 : SULFIDES
4 : AmBnXp, with (m+n):p = 2:1
3.3.4

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

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

Metallic
Transparency:
Opaque
Comment:
Usually grains are so tiny they are invisible without a microscope
Colour:
Greyish-white
Comment:
Uytenbogaardtite is commonly gray-white metallic, but it tarnishes very easily in bright light. Polished sections, in particular, may show rapid color changes within minutes. Various references report differing iridescence. Tan is commonly observed, but shades of pink to brassy are also observed.
Hardness:
Hardness:
VHN15=20 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Malleable
Cleavage:
Imperfect/Fair
None
Fracture:
Irregular/Uneven, Sub-Conchoidal
Comment:
Considerably more brittle than acanthite
Density:
8.40(5) g/cm3 (Calculated)

Optical Data of UytenbogaardtiteHide

Anisotropism:
Strong; without distinct colors.
Reflectivity:
WavelengthR1R2
470nm33.2%34.6%
546nm30.3%34.6%
589nm31.1%35.2%
650nm30.5%33.3%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 35.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
gray-white
Pleochroism:
Weak
Comments:
Weak to distinct; pale gray to pale gray with a brownish tint.
Comments:
surface changes rapidly on exposure to light

Chemistry of UytenbogaardtiteHide

Mindat Formula:
Ag3AuS2
Common Impurities:
Cu,Se,Te

Crystallography of UytenbogaardtiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Cell Parameters:
a = 13.6952(5) Å, c = 17.0912(8) Å
Ratio:
a:c = 1 : 1.248
Unit Cell V:
2776.1 ų
Z:
8
Morphology:
Not observed in crystals to date. Grains of uytenbogaardtite are rarely larger than 100 microns and magnification is necessary to observe the mineral.
Comment:
Given as P4122 or P1, a= 9.75, c =m9.85, Z=9 by Bideaux (1990). Previously given space group: R-3; originally thought to be tetragonal.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012143UytenbogaardtiteMessien P, Baiwir M, Tavernier B (1966) Structure cristalline du sulfure mixte d'argent et d'or Bulletin de la Societe Royal des Sciences de Liege 35 727-7331966synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.98 Å(80)
4.38 Å(60)
3.99 Å(10)
3.46 Å(20)
3.25 Å(30)
3.09 Å(60)
2.943 Å(30)
2.809 Å(60)
2.731 Å(100)
2.609 Å(90)
2.371 Å(30)
2.319 Å(20)
2.297 Å(10)
2.236 Å(30)
2.147 Å(50)
2.124 Å(80)
2.011 Å(10)
1.992 Å(50)
1.925 Å(40)
1.885 Å(20)
1.907 Å(50)
1.780 Å(40)
1.735 Å(10)
1.669 Å(10)
1.536 Å(20)
1.470 Å(30)
1.406 Å(30)
Comments:
ICDD 33-587 synthetic

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])

Type Occurrence of UytenbogaardtiteHide

General Appearance of Type Material:
Gray-white metallic to tannish gray-white metallic grains. Frequently changes color, especially in polished sections. Iridescence noted varying from metallic tan, to brassy and "metallic pink". The mineral rarely is larger than 100 microns and crystals ar
Place of Conservation of Type Material:
1) Institute of Earth Sciences, Free University of Amsterdam.
2) University of Amsterdam, Amsterdam, The Netherlands
3) National Museum of Natural History (Smithsonian), Washington, D.C., USA, 105328, B239.
Associated Minerals at Type Locality:
Reference:
Barton, M.D., Kieft, C., Burke, E.A.J., Oen, I.S. (1978) Uytenbogaardtite, a new silver-gold sulfide. The Canadian Mineralogist: 16: 651-657.

Synonyms of UytenbogaardtiteHide

Other Language Names for UytenbogaardtiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
8 photos of Uytenbogaardtite associated with AcanthiteAg2S
5 photos of Uytenbogaardtite associated with Electrum(Au,Ag)
3 photos of Uytenbogaardtite associated with GalenaPbS
3 photos of Uytenbogaardtite associated with GoldAu
3 photos of Uytenbogaardtite associated with MalachiteCu2(CO3)(OH)2
2 photos of Uytenbogaardtite associated with QuartzSiO2
2 photos of Uytenbogaardtite associated with SilverAg
2 photos of Uytenbogaardtite associated with StephaniteAg5SbS4
2 photos of Uytenbogaardtite associated with PyriteFeS2

Related Minerals - Strunz-mindat GroupingHide

2.BA.Orileyite(Fe,Cu)2As
2.BA.AlburniteAg8GeTe2S4Iso.
2.BA.DzierżanowskiteCaCu2S2Trig. 3m (3 2/m) : P3m1
2.BA.MakotoiteAg12(Cu3Au)S8Trig. 3m (3 2/m) : R3c
2.BA.XuwenyuaniteAg9Fe3+Te2S4Iso. 4 3m : F4 3m
2.BA.05ChalcociteCu2SMon. 2/m : P21/b
2.BA.05DjurleiteCu31S16Mon. 2/m
2.BA.05GeeriteCu8S5Trig. 3
2.BA.05RoxbyiteCu9S5Tric. 1 : P1
2.BA.10AniliteCu7S4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.10DigeniteCu9S5Trig. 3m (3 2/m) : R3m
2.BA.15BorniteCu5FeS4Orth. mmm (2/m 2/m 2/m) : Pbca
2.BA.20BellidoiteCu2SeTet. 4/m : P42/n
2.BA.20BerzelianiteCu2-xSe (x ≈ 0.12)Iso. m3m (4/m 3 2/m) : Fm3m
2.BA.25AthabascaiteCu5Se4Orth.
2.BA.25UmangiteCu3Se2Tet. 4 2m : P4 21m
2.BA.30RickarditeCu7Te5Orth. mmm (2/m 2/m 2/m) : Pmmn
2.BA.30WeissiteCu2-xTeHex. 6/mmm (6/m 2/m 2/m) : P6/mmm
2.BA.35AcanthiteAg2SMon. 2/m : P21/m
2.BA.35SpryiteAg8(As3+0.5As5+0.5)S6Orth. mm2 : Pna21
2.BA.40MckinstryiteAg5-xCu3+xS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.40StromeyeriteAgCuSOrth. mmm (2/m 2/m 2/m)
2.BA.40dUM2003-13-S:AgAuCuAg6AuCu2S5
2.BA.42HoneaiteAu3TlTe2 Orth. mmm (2/m 2/m 2/m) : Pbcm
2.BA.45JalpaiteAg3CuS2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
2.BA.45KuriliteAg8Te3SeTrig. 3 : R3
2.BA.45SelenojalpaiteAg3CuSe2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
2.BA.47Spiridonovite(Cu1-xAgx)2TeTrig. 3m (3 2/m) : P3c1
2.BA.50EucairiteAgCuSeOrth.
2.BA.50WuyanzhiiteCu2STet. 4 2 2 : P43 21 2
2.BA.52ArgentiteAg2SIso.
2.BA.55AguilariteAg4SeSMon. 2/m
2.BA.55NaumanniteAg2SeOrth. 2 2 2 : P21 21 21
2.BA.60CervelleiteAg4TeSMon. 2/m
2.BA.60HessiteAg2TeMon. 2/m : P21/b
2.BA.60ChenguodaiteAg9Fe3+Te2S4Orth.
2.BA.65Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40 Iso. m3m (4/m 3 2/m) : Fd3c
2.BA.65StütziteAg5-xTe3, x = 0.24-0.36Hex. 6 : P6
2.BA.70ArgyroditeAg8GeS6Orth. mm2 : Pna21
2.BA.70CanfielditeAg8SnS6Orth. mm2
2.BA.70Putzite(Cu4.7Ag3.3)GeS6Iso. 4 3m : F4 3m
2.BA.75FischesseriteAg3AuSe2Iso. 4 3 2 : I41 3 2
2.BA.75Penzhinite(Ag,Cu)4Au(S,Se)4Hex. 6 2 2 : P63 2 2
2.BA.75PetrovskaiteAuAgSMon.
2.BA.75PetziteAg3AuTe2Iso. 4 3 2 : I41 3 2
2.BA.80Bezsmertnovite(Au,Ag)4Cu(Te,Pb)Orth.
2.BA.80BilibinskitePbCu2Au3Te2Iso.
2.BA.80Bogdanovite(Au,Te,Pb)3(Cu,Fe)Iso.

Fluorescence of UytenbogaardtiteHide

Not fluorescent in UV

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 UytenbogaardtiteHide

References for UytenbogaardtiteHide

Localities for UytenbogaardtiteHide

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.
Argentina
 
  • Catamarca Province
    • Belén Department
      • Hualfín
Márquez-Zavalía et al. (2016)
  • La Rioja Province
    • Famatina Department
      • La Mejicana mining area
Brotkorb (2002)
  • Mendoza Province
    • Malargüe Department
      • Agua Escondida District
Ana Cecilia Mugas-Lobos et al. (2011) +1 other reference
  • Santa Cruz Province
DE BRODTKORB +1 other reference
    • Lago Buenos Aires Department
      • Sascha Project
Smith (2009)
    • Magallanes Department
      • El Salado
FERNANDEZ +1 other reference
FERNANDEZ +1 other reference
Bolivia
 
  • Potosí
    • Antonio Quijarro Province
Dill (1998)
Bulgaria
 
  • Haskovo Province
    • Ivaylovgrad Municipality
      • Popsko
Marchev et al. (2005)
Canada
 
  • Newfoundland and Labrador
    • Newfoundland
Junco Rojas (2022)
China
 
  • Heilongjiang
    • Daxing'anling
      • Huma County
Zhiguo Zhang et al. (2008)
  • Jiangxi
    • Ganzhou
      • Yudu Co.
        • Yinkeng polymetallic ore field
Yue et al. (2024)
Yue et al. (2024)
  • Qinghai
    • Haixi Mongol and Tibetan Autonomous Prefecture
      • Madoi County
Wang et al. (2019)
Czech Republic
 
  • Central Bohemian Region
    • Kutná Hora District
      • Kutná Hora
Pažout et al. (2019)
Dominican Republic
 
  • Sánchez Ramírez Province
    • Cotuí
Marchenko et al. (2013)
Egypt
 
  • South Sinai Governorate
Sallam et al. (2014)
Indonesia
 
  • Banten Province
    • Cikotok Gold District
Marcoux et al. (1993) +2 other references
  • Bengkulu Province
    • Rejang Lebong District (Rediang Lebong District)
[Canadian Mineralogist (1978) +2 other references
  • West Java Province
    • Bogor Regency
The Canadian Mineralogist Vol. 41 (2003) +1 other reference
Japan
 
  • Ishikawa Prefecture
    • Hakui District
      • Shika-machi
Hamada et al. (2022)
Malaysia
 
  • Sarawak
    • Kuching Division
      • Bau
Wolfram Dieter Schuh (1993)
Mexico
 
  • Puebla
    • Ixtacamaxtitlán Municipality
www.almadenminerals.com (2018)
New Zealand
 
  • Waikato Region
    • Hauraki District
Fyfe (2014)
    • Thames-Coromandel District
      • Hikuai
Cocker et al. (2013)
Peru
 
  • Arequipa
    • Castilla Province
      • Orcopampa District
Gibson (1992)
      • Shila-Paula mining district
Greffié et al. (2002) +1 other reference
Chauvet et al. (2006)
  • Ayacucho
    • Parinacochas Province
Gamarra-Urrunaga et al. (2013) +1 other reference
Romania
 
  • Alba County
    • Roșia Montană
IATAN et al. (2016)
  • Vâlcea County
Udubaªa et al. (2006) +1 other reference
Russia (TL)
 
  • Altai Krai
    • Zmeinogorsky District
Barton et al. (1978) +2 other references
  • Bashkortostan
    • Uchalinsky District
Vikentyev et al. (2015) +1 other reference
  • Chukotka Autonomous Okrug
    • Anadyrsky District
N.E. Savva et al. (2012) +1 other reference
Zhuravkova et al. (2019)
    • Iultinsky District
      • Iul'tinskiy Mining Complex
Сереткин et al. (2013)
    • Okhotsk-Chukotka belt
Kolova et al. (2021)
  • Kamchatka Krai
    • Bystrinsky District
      • Central Kamchatka mining district
        • Baranyevskoe ore field
Tolstykh et al. (2021)
    • Koryak Okrug
      • Karaginsky District
Zhegunov et al. (2022) +1 other reference
        • Maletoyvayam ore field
Tolstykh et al. (2023)
    • Yelizovsky District
Tolstykh et al. (2022)
  • Krasnoyarsk Krai
    • Sharypovsky district
Pal'Yanova et al. (2015)
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
Proskurnin et al. (2011, December)
Proskurnin et al. (2011, December)
  • Magadan Oblast
    • Omsukchansky District
      • Engteri ore cluster
Пальянова et al. (2016)
Palyanova et al. (2016) +1 other reference
      • Primorskoe deposit
Savva et al. (2019)
Volkov et al. (2018)
Litvinenko Ivan Stepanovych (2020)
    • Severo-Evensky District
Volkov et al. (2021)
Tauson et al. (2017)
Priymenko et al. (2022)
    • Srednekansky District
Сереткин et al. (2013)
    • Susumansky District
Savva et al. (2014)
Сереткин et al. (2013)
Savva et al. (2007)
Pal’yanova et al. (2009)
  • Murmansk Oblast
    • Voron'i Tundry
A. A. Kalinin et al. (2016)
  • Orenburg Oblast
    • Gay
Sergeyev N.B. et al. (1996)
  • Republic of Karelia
    • Pitkyarantsky District
Лавров (2021)
  • Sakha
    • Aldan
      • Ryabinovskoe Cu-Au deposit
Kondratieva et al. (2021)
Kondratieva et al. (2021)
    • Aldansky District
      • Spokoininsky ore cluster
[[1]]Kondratieva et al. (2023)
  • Sverdlovsk Oblast
Safina
  • Tuva
Gas’kov et al. (2006)
    • Sut-Kholsky District
R. V. Kuzhuget et al. (2017)
  • Zabaykalsky Krai
Юргенсон (2022)
Slovakia
 
  • Banská Bystrica Region
    • Banská Štiavnica District
      • Banská Belá
Berkh et al. (2014)
    • Žarnovica District
      • Hodruša-Hámre
Majzlan (2009) +1 other reference
Vlasáč J. et al. (2021)
Berkh et al. (2014)
Majzlan (2009)
sulphosalts from epithermal ... +2 other references
      • Nová Baňa
Majzlan et al. (2017) +1 other reference
      • Rudno nad Hronom
Vlasáč et al. (2021)
    • Žiar nad Hronom District
      • Kremnica
Števko M. et al. (2018)
Vlasáč J. et al. (2021)
South Korea
 
  • South Jeolla Province
    • Jindo County
      • Gasado Island
Ko et al. (2022)
Tajikistan
 
  • Sughd
    • Ghafurov District
      • Adrasmon (Adrasman)
        • East Karamazar ore district
Yatimov et al. (2022)
Turkey
 
  • Balikesir Province
    • Sindirgi District
Blanks et al. (2014)
USA
 
  • Arizona
    • Cochise County
      • Dos Cabezas Mountains
        • Dos Cabezas Mining District (Two Heads Mining District)
Anthony et al. (1995)
  • California
    • San Bernardino County
      • Ivanpah Mining District
        • Ivanpah Mountains
          • Kessler Peak
Ronald Wynn Sheets et al. (1995)
  • Colorado
    • Mineral County
      • Creede Mining District
Eckel et al. (1997)
Foley +4 other references
  • Montana
    • Lewis and Clark County
      • Seven-Up Pete Mining District
Szarkowski (2019)
    • Silver Bow County
      • Butte Mining District (Summit Valley Mining District)
        • Walkerville
Tiffany Ostenburg (2022)
  • Nevada
    • Elko County
      • Ivanhoe Mining District
Cain et al. (2007)
      • Pequop Mining District
Smith et al. (2013)
    • Humboldt County
      • Osgood Mountains
        • Potosi Mining District
          • Adam Peak
Bowell et al. (1999) +1 other reference
    • Lander County
      • Lewis Mining District
Castor et al. (2004)
    • Nye County
      • Bruner Mining District
        • Phonolite
Baldwin (2014)
      • Bullfrog Hills
Canadian Mineralogist Vol. 31
Castor et al. (1993)
Castor et al. (2004)
Tschernich et al. (1992) +1 other reference
          • Rhyolite
Castor et al. (2004)
      • Tolicha Mining District
        • Tolicha Peak
          • Landmark-Life Preserver group
Castor et al. (2004)
    • Storey County
DeMouthe (1985)
        • Virginia City
Forrest Cureton
[Canadian Mineralogist (1978)
  • Washington
    • Ferry County
      • Republic Mining District
Cannon (1991)
Uzbekistan
 
  • Tashkent Region
    • Ohangaron District
Eleonora A. Dunin-Barkovskaya et al. (2005)
GEOCHMISTRY +1 other reference
 
and/or  
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