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Galkhaite

A valid IMA mineral species
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About GalkhaiteHide

Formula:
(Hg5Cu)CsAs4S12
Originally assumed to be HgAsS2.
Colour:
Dark orange-red
Lustre:
Adamantine, Vitreous
Hardness:
3
Specific Gravity:
5.4
Crystal System:
Isometric
Member of:
Name:
For the the Gal-Khaya As-Hg-Sb deposit, Russia, one of the co-type localities.
Isostructural with:
The Cs analogue of vorontsovite and Cs-Hg analogue of ferrovorontsovite.


Unique IdentifiersHide

Mindat ID:
1643
Long-form identifier:
mindat:1:1:1643:4

IMA Classification of GalkhaiteHide

Classification of GalkhaiteHide

2.GB.20

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
3.4.14.1

3 : SULFOSALTS
4 : ø = 3
5.4.5

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
4 : Sulpharsenites etc. of Zn and Hg

Mineral SymbolsHide

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

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

Physical Properties of GalkhaiteHide

Adamantine, Vitreous
Transparency:
Opaque
Colour:
Dark orange-red
Streak:
Orange-yellow
Hardness:
Hardness:
VHN100=186 - 202 kg/mm2 - Vickers
Tenacity:
Brittle
Fracture:
Irregular/Uneven, Conchoidal
Density:
5.4 g/cm3 (Measured)    5.44 g/cm3 (Calculated)

Optical Data of GalkhaiteHide

Reflectivity:
WavelengthR1 (%)
400nm30.5%
420nm29.7%
440nm29.3%
460nm28.8%
480nm28.0%
500nm26.8%
520nm26.6%
540nm24.6%
560nm23.8%
580nm23.1%
600nm22.6%
620nm22.2%
640nm21.9%
660nm21.6%
680nm21.4%
700nm21.2%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 30.5%.

Chemistry of GalkhaiteHide

Mindat Formula:
(Hg5Cu)CsAs4S12

Originally assumed to be HgAsS2.
Element Weights:
Element% weight
Hg53.239 %
S20.425 %
As15.908 %
Cs7.055 %
Cu3.373 %

Calculated from ideal end-member formula.
Common Impurities:
Fe,Se

Crystallography of GalkhaiteHide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3m
Cell Parameters:
a = 10.365(3) Å
Unit Cell V:
1,113.55 ų (Calculated from Unit Cell)
Z:
12
Morphology:
Crystals to 1cm, granular aggregates.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005182GalkhaiteChen T T, Szymanski J T (1981) The structure and chemistry of galkhaite, a mercury sulfosalt containing Cs and Tl The Canadian Mineralogist 19 571-581Image1981Getchell mine, Humboldt County, Nevada, USA0293
0014754GalkhaiteDivjakovic V, Nowacki W (1975) Die kristallstruktur von galchait [Hg0.76(Cu,Zn)0.24]12Tl0.96(AsS3)8 Neues Jahrbuch fur Mineralogie, Monatshefte 1975 291-2931975Getchell mine, Humboldt County, Nevada, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.01 Å(100)
2.78 Å(80)
4.27 Å(70)
7.40 Å(50)
1.841 Å(50)
2.604 Å(29)
1.569 Å(29)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Geological Setting:
Hydrothermal Hg-Au deposits

Type Occurrence of GalkhaiteHide

Synonyms of GalkhaiteHide

Other Language Names for GalkhaiteHide

Dutch:Galkhaiet
Simplified Chinese:硫砷铊汞矿
Spanish:Galkhaita

Relationship of Galkhaite to other SpeciesHide

Member of:
Other Members of Galkhaite Group:
Ferrovorontsovite(Fe5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m
Vorontsovite(Hg5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m

Common AssociatesHide

Associations Based on Photo Data:
17 photos of Galkhaite associated with QuartzSiO2
4 photos of Galkhaite associated with FluoriteCaF2
3 photos of Galkhaite associated with OrpimentAs2S3
3 photos of Galkhaite associated with Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
3 photos of Galkhaite associated with RealgarAs4S4
2 photos of Galkhaite associated with PyriteFeS2
2 photos of Galkhaite associated with GalenaPbS
2 photos of Galkhaite associated with CalciteCaCO3
1 photo of Galkhaite associated with GetchelliteAsSbS3
1 photo of Galkhaite associated with StibniteSb2S3

Related Minerals - Strunz-mindat GroupingHide

2.GB.'Polybasite-Tac'[Ag6Sb2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.Kenoargentotetrahedrite-(Zn)[Ag6]4+(Cu4Zn2)Sb4S12Iso. 4 3m : I4 3m
2.GB.Argentotetrahedrite-(Hg)Ag6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Annivite-(Zn)Cu6(Cu4Zn2)Bi4S12SIso. 4 3m : I4 3m
2.GB.Pošepnýite(Cu+33)(Hg2+4Cu+2)Sb4Se12(Se0.50.5)Iso. 4 3m : I4 3m
2.GB.Tennantite-(Cu)Cu6(Cu4Cu2)As4S12SIso. 4 3m : I4 3m
2.GB.Argentopolybasite[Ag6Sb2S7][Ag9AgS4]Trig. 3 2 : P3 2 1
2.GB.Tennantite-(Mn)Cu6(Cu4Mn2)As4S12SIso. 4 3m : I4 3m
2.GB.Argentotetrahedrite-(Cd)Ag6(Cu4Cd2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Stibioústalečite(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12SeIso. 4 3m : I4 3m
2.GB.Stibiogoldfieldite(Cu4Cu2)(Cu4Cu+2)(Sb2Te2)S12SIso. 4 3m : I4 3m
2.GB.Argentotetrahedrite-(Zn)Ag6(Cu4Zn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Cd)Cu6(Cu4Cd2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Arsenogoldfieldite(Cu4Cu2)(Cu4Cu+2)(As2Te2)S12SIso. 4 3m : I4 3m
2.GB.Arsenoústalečite(Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12SeIso. 4 3m : I4 3m
2.GB.Tennantite-(In)Cu6(Cu4(In3+Cu+))As4S12SIso. 4 3m : I4 3m
2.GB.Zvěstovite-(Fe)Ag6(Ag4Fe2+2)As4S12SIso. 4 3m : I4 3m
2.GB.Hakite-(Fe)Cu6(Cu4Fe2+2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Tennantite-(Cd)Cu6(Cu4Cd2)As4S12SIso. 4 3m : I4 3m
2.GB.XKenorozhdestvenskayaite-(Fe)[Ag6]4+(Ag4Fe2+2)Sb4S12Iso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Cu)Cu6(Cu4Cu2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Hakite-(Zn)Cu6(Cu4Zn2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Zvěstovite-(Zn)Ag6(Ag4Zn2)As4S12SIso.
2.GB.Hakite-(Cd)Cu6(Cu4Cd2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.Kenoargentotennantite-(Fe)[Ag6]4+(Cu4Fe2)As4S12Iso. 4 3m : I4 3m
2.GB.Tennantite-(Hg)Cu6(Cu4Hg2)As4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Mn)Cu6(Cu4Mn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.Tennantite-(Ni)Cu6(Cu4Ni2)As4S12SIso. 4 3m : I4 3m
2.GB.Tetrahedrite-(Ni)Cu6(Cu4Ni2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Hakite-(Hg)Cu6(Cu4Hg2)Sb4Se12SeIso. 4 3m : I4 3m
2.GB.05Rozhdestvenskayaite-(Zn)Ag6(Ag4Zn2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Argentotennantite-(Zn)Ag6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
2.GB.05Argentotennantite-(Fe)Ag6(Cu4Fe2)As4S12SIso. 4 3m : I4 3m
2.GB.05Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1Iso. 4 3m : I4 3m
2.GB.05Tennantite SubgroupCu6(Cu4C2+2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tennantite-(Zn)Cu6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Zn)Cu6(Cu4Zn2)Sb4S12SIso. 4 3m : F4 3m
2.GB.05Tetrahedrite SubgroupCu6(Cu4C2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Tennantite-(Fe)Cu6(Cu4Fe2+2)As4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Fe)Cu6(Cu4Fe2+2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Tetrahedrite-(Hg)Cu6(Cu4Hg2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Kenoargentotetrahedrite-(Fe)[Ag6]4+(Cu4Fe2+2)Sb4S12Iso. 4 3m : I4 3m
2.GB.05Giraudite-(Zn)Cu6(Cu4Zn2)As4Se12SeIso. 4 3m : I4 3m
2.GB.05Argentotetrahedrite-(Fe)Ag6(Cu4Fe2)Sb4S12SIso. 4 3m : I4 3m
2.GB.05Goldfieldite(Cu42)(Cu4Cu+2)Te4S12SIso. 4 3m : I4 3m
2.GB.05'UM1992-21-S:AgFeSb'Ag6(Ag4Fe2+2)Sb4S12SIso.
2.GB.10SelenostephaniteAg5SbSe4Orth. 2 2 2 : P21 21 21
2.GB.10StephaniteAg5SbS4Orth. mm2 : Cmc21
2.GB.15'UM2003-14-S:AgBiFeTe'Ag16FeBiTe3S8
2.GB.15'UM1979-17-S:BiCuFe'~Cu18Fe4BiS16
2.GB.15Pearceite[Ag6As2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.15ArgentopearceiteAg16As2S11Trig. 3 2 : P3 2 1
2.GB.15Cupropolybasite[Cu6Sb2S7][Ag9CuS4]Trig. 3m : P3 1m
2.GB.15Fengruiite[Ag6Sb2S7][Ag9CuS2Te2]Trig. 3m (3 2/m) : P3m1
2.GB.15Auropearceite [Ag9AuS4][Ag6As2S7]Trig. 3 2 : P3 2 1
2.GB.15Selenopolybasite[(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2]Trig. 3m (3 2/m) : P3m1
2.GB.15Polybasite[Ag6Sb2S7][Ag9CuS4]Mon. 2/m : B2/m
2.GB.15Auropolybasite[Ag9AuS4][Ag6Sb2S7]Trig. 3 2 : P3 2 1
2.GB.15Cupropearceite[Cu6As2S7][Ag9CuS4]Trig. 3m (3 2/m) : P3m1
2.GB.20Vorontsovite(Hg5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m
2.GB.20Ferrovorontsovite(Fe5Cu)Σ6TlAs4S12Iso. 4 3m : I4 3m

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 GalkhaiteHide

References for GalkhaiteHide

Reference List:

Localities for GalkhaiteHide

Showing 20 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the Image symbol to view information about a locality. The Image symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

Image - This locality has map coordinates listed. Image - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. Image - Good crystals or important locality for species. Image - 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.
Canada
 
  • Ontario
    • Thunder Bay District
      • Bomby Township
G.S.C.Misc.Rep.49 +1 other reference
Sabina (1991)
Barrick Gold Corporation
China
 
  • Guizhou
    • Qianxinan
      • Zhenfeng County
        • Huijiabao gold field
Xie et al. (2018)
Iran
 
  • West Azerbaijan Province
    • Takab County
Mehrabi et al. (1999) +2 other references
Italy
 
  • Piedmont
    • Metropolitan City of Turin
      • Oulx
        • Signols
- (n.d.) +1 other reference
Kyrgyzstan (TL)
 
  • Batken Region
    • Kadamjay District
      • Aydarken
Grudzen et al. (1972) +2 other references
Kolesar et al. (1993) +1 other reference
Russia (TL)
 
  • Sakha
    • Ust-Yansky District
DAN-SSSR (1972) +3 other references
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2021)
USA
 
  • Nevada
    • Elko County
      • Independence Mountains Mining District
Castor et al. (2004)
    • Eureka County
      • Lynn Mining District
        • Elko
Rota (1989)
Barrick Gold Corporation
Barrick Gold Corporation
    • Humboldt County
      • Osgood Mountains
        • Potosi Mining District
          • Adam Peak
Jungles (1974) +2 other references
- (2005)
- (2005)
Barrick Gold Corporation
- (2005)
          • Twin Creeks Mine
            • Mega Pit
Colorado School of Mines museum ...
 
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