Auroselenide
A valid IMA mineral species
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Formula:
AuSe
Colour:
bluish-gray
Lustre:
Metallic
Specific Gravity:
9.750 (Calculated)
Crystal System:
Monoclinic
Name:
Named for its composition of gold (Latin: aurum) and selenium.
Known synthetic analogue (β-AuSe).
The most simple natural gold selenide (status in 2022).
Compare maletoyvayamite. Also see Unnamed (Au-Telluride-Selenide-Sulphide)
The most simple natural gold selenide (status in 2022).
Compare maletoyvayamite. Also see Unnamed (Au-Telluride-Selenide-Sulphide)
Unique Identifiers
Mindat ID:
470407
Long-form identifier:
mindat:1:1:470407:8
GUID
(UUID V4):
(UUID V4):
c3f22346-a792-4ab8-85b9-d91345cbbf27
IMA Classification of Auroselenide
Approved
Approval year:
2022
First published:
2023
Type description reference:
Classification of Auroselenide
2.CB.
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 : 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.
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Ause | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Auroselenide
Metallic
Transparency:
Opaque
Colour:
bluish-gray
Streak:
gray
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
9.750 g/cm3 (Calculated)
Optical Data of Auroselenide
Anisotropism:
strong, with bluish to brownish rotation tints
Bireflectance:
very weak
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
470nm | 28.4% | 31.5% |
546nm | 30.2% | 33.3% |
589nm | 31.9% | 34.9% |
650nm | 34.3% | 37.3% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 37.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:
gray with a bluish shade
Internal Reflections:
no
Pleochroism:
Non-pleochroic
Chemistry of Auroselenide
Mindat Formula:
AuSe
Elements listed:
Chemical Analysis
Empirical formulas:
Sample ID | Empirical Formula |
---|---|
1 | (Au0.98Ag0.01)?0.99(Se0.79S0.17Te0.05)?1.01 |
Sample references:
ID | Locality | Reference | Notes |
---|---|---|---|
1 | Gaching occurrence, Maletoyvayam ore field, Karaginsky District, Koryak Okrug, Kamchatka Krai, Russia | by electron microprobe; empirical formula basis: 2 atoms pfu |
Crystallography of Auroselenide
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 8.319(1) Å, b = 3.616(1) Å, c = 6.276(2) Å
β = 104.54(2)°
β = 104.54(2)°
Ratio:
a:b:c = 2.301 : 1 : 1.736
Unit Cell V:
182.75 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.015 Å | (54) |
3.033 Å | (25) |
2.780 Å | (100) |
2.172 Å | (20) |
1.911 Å | (16) |
1.811 Å | (25) |
1.653 Å | (13) |
1.513 Å | (14) |
Comments:
From Type Description.
Type Occurrence of Auroselenide
General Appearance of Type Material:
anhedral grains, up to 0.05 x 0.02 mm; intergrowths, up to 0.06 mm
Place of Conservation of Type Material:
Type material is deposited in the collections of Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Central Siberian Geological Museum, Akademika Koptyuga 3, Novosibirsk 630090, Russia, catalogue number IV-6/1
Associated Minerals at Type Locality:
Synonyms of Auroselenide
Related Minerals - Strunz-mindat Grouping
2.CB. | Agmantinite | Ag2MnSnS4 |
2.CB. | Richardsite | Zn2CuGaS4 |
2.CB. | Gachingite | Au(Te1-xSex) |
2.CB. | Tolstykhite | Au3S4Te6 |
2.CB. | Hanswilkeite | KFeS2 |
2.CB. | Ruizhongite | (Ag2◻)Pb3Ge2S8 |
2.CB. | Okruginite | Cu2SnSe3 |
2.CB.05a | Coloradoite | HgTe |
2.CB.05a | Hawleyite | CdS |
2.CB.05a | Metacinnabar | HgS |
2.CB.05c | Polhemusite | (Zn,Hg)S |
2.CB.05b | Sakuraiite | (Cu,Zn,Fe)3(In,Sn)S4 |
2.CB.05a | Sphalerite | ZnS |
2.CB.05a | Stilleite | ZnSe |
2.CB.05a | Tiemannite | HgSe |
2.CB.05 | UM1998-15-S:CuFeZn | Cu2Fe3Zn5S10 |
2.CB.05a | Rudashevskyite | (Fe,Zn)S |
2.CB.05a | Ishiharaite | (Cu,Ga,Fe,In,Zn)S |
2.CB.07a | Shenzhuangite | NiFeS2 |
2.CB.07a | Unnamed (Cu-Mn-Sn Sulpide) | Cu2MnSnS4 |
2.CB.10a | Chalcopyrite | CuFeS2 |
2.CB.10a | Eskebornite | CuFeSe2 |
2.CB.10a | Gallite | CuGaS2 |
2.CB.10b | Haycockite | Cu4Fe5S8 |
2.CB.10a | Lenaite | AgFeS2 |
2.CB.10b | Mooihoekite | Cu9Fe9S16 |
2.CB.10b | Putoranite | Cu1.1Fe1.2S2 |
2.CB.10a | Roquesite | CuInS2 |
2.CB.10b | Talnakhite | Cu9(Fe,Ni)8S16 |
2.CB.10a | Laforêtite | AgInS2 |
2.CB.10a | Unnamed (Cu-Zn-In Sulphide) | CuZn2InS4 |
2.CB.10a | UM1984-30-S:CuFeSn | Cu2Fe2Sn3S7 |
2.CB.10c | Omariniite | Cu8Fe2ZnGe2S12 |
2.CB.15a | Černýite | Cu2(Cd,Zn,Fe)SnS4 |
2.CB.15a | Ferrokësterite | Cu2FeSnS4 |
2.CB.15a | Hocartite | Ag2(Fe2+,Zn)SnS4 |
2.CB.15a | Idaite | Cu5FeS6 |
2.CB.15a | Kësterite | Cu2ZnSnS4 |
2.CB.15a | Kuramite | Cu3SnS4 |
2.CB.15b | Mohite | Cu2SnS3 |
2.CB.15a | Pirquitasite | Ag2ZnSnS4 |
2.CB.15a | Stannite | Cu2FeSnS4 |
2.CB.15c | Stannoidite | Cu+6Cu2+2(Fe2+,Zn)3Sn2S12 |
2.CB.15a | Velikite | Cu2HgSnS4 |
2.CB.15c | UM2006-11-S:CuFeGeZn | Cu8(Fe,Zn)3Ge2S12 (?) |
2.CB.17a v | Arsenic-bearing Renierite | Cu11GeAsFe4S16 |
2.CB.20 | Chatkalite | Cu6FeSn2S8 |
2.CB.20 | Mawsonite | Cu6Fe2SnS8 |
2.CB.30 | Argyropyrite | near Ag2Fe7S11 |
2.CB.30 | Colusite | Cu13VAs3S16 |
2.CB.30 | Germanite | Cu13Fe2Ge2S16 |
2.CB.30 | Germanocolusite | Cu26V2(Ge,As)6S32 |
2.CB.30 | Nekrasovite | Cu26V2(Sn,As,Sb)6S32 |
2.CB.30 | Stibiocolusite | Cu13V(Sb,Sn,As)3S16 |
2.CB.30 | Ovamboite | Cu20(Fe,Cu,Zn)6W2Ge6S32 |
2.CB.30 | Maikainite | Cu20(Fe,Cu)6Mo2Ge6S32 |
2.CB.30 | Frieseite | Ag2Fe5S8 (?) |
2.CB.35a | Hemusite | Cu6SnMoS8 |
2.CB.35a | Kiddcreekite | Cu6SnWS8 |
2.CB.35a | Polkovicite | (Fe,Pb)3(Ge,Fe)1-xS4 |
2.CB.35a | Renierite | (Cu1+,Zn)11Fe4(Ge4+,As5+)2S16 |
2.CB.35a | Vinciennite | Cu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16 |
2.CB.35a | Morozeviczite | (Pb,Fe)3Ge1-xS4 |
2.CB.35b | Catamarcaite | Cu6GeWS8 |
2.CB.40 | Lautite | CuAsS |
2.CB.42 | Lingbaoite | AgTe3 |
2.CB.45 | Cadmoselite | CdSe |
2.CB.45 | Greenockite | CdS |
2.CB.45 | Wurtzite | (Zn,Fe)S |
2.CB.45 | Rambergite | MnS |
2.CB.45 | Buseckite | (Fe,Zn,Mn)S |
2.CB.45 | Maletoyvayamite | Au3Se4Te6 |
2.CB.47 | Murchisite | Cr5S6 |
2.CB.50 | Zincselenide | ZnSe |
2.CB.50 | Wassonite | TiS |
2.CB.52 | Dzhezkazganite | ReMoCu2PbS6 ? |
2.CB.55a | Cubanite | CuFe2S3 |
2.CB.55b | Isocubanite | CuFe2S3 |
2.CB.60 | Picotpaulite | TlFe2S3 |
2.CB.60 | Raguinite | TlFeS2 |
2.CB.65 | Argentopyrite | AgFe2S3 |
2.CB.65 | Sternbergite | AgFe2S3 |
2.CB.70 | Sulvanite | Cu3VS4 |
2.CB.75 | Vulcanite | CuTe |
2.CB.80 | Empressite | AgTe |
2.CB.85 | Muthmannite | AuAgTe2 |
Other Information
Notes:
Raman bands [cm-1]: 93, 171, 200, 210, 325
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 Auroselenide
mindat.org URL:
https://www.mindat.org/min-470407.html
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External Links:
References for Auroselenide
Localities for Auroselenide
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Miyawaki et al. (2022) +2 other references |