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Galkhaite

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Big Photo

Getchell Mine, Adam Peak, Potosi District, Humboldt Co., Nevada, USA
© 2004 JBS

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Formula:
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
System:IsometricColour:Dark orange-red
Hardness:3
Name:For the type locality
This page provides mineralogical data about Galkhaite.

Classification of Galkhaite

IMA status:Approved
Strunz 8th edition ID:2/E.11-10
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:3.4.14.1

3 : SULFOSALTS
4 : ø = 3
Hey's CIM Ref.: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
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Type Occurrence of Galkhaite

Co-type Localities:Khaidarkan Sb-Hg deposit (Chaidarkan), Fergana Valley, Alai Range (Alay Range), Osh Oblast, Kyrgyzstan
Gal-Khaya As-Hg-Sb Deposit, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
Place of Conservation of Type Material:Fernsman Museum
Year of Discovery:1972

Occurrences of Galkhaite

Geological Setting:Hydrothermal Hg-Au deposits

Physical Properties of Galkhaite

Lustre:Adamantine, Vitreous
Diaphaneity (Transparency):Opaque
Colour:Dark orange-red
Streak:Orange-yellow
Hardness (Mohs):3
Hardness (Vickers):VHN100=186 - 202 kg/mm2
Tenacity:Brittle
Fracture:Irregular/Uneven, Conchoidal
Density (measured):5.4 g/cm3
Density (calculated):5.44 g/cm3

Crystallography of Galkhaite

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

Chemical Properties of Galkhaite

Formula:
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
Essential elements:As, Cs, Hg, S
All elements listed in formula:As, Cs, Cu, Hg, S, Sb, Tl, Zn
Common Impurities:Fe,Se

Relationship of Galkhaite to other Species

Common Associates:
StibniteRealgarPyriteOrpimentGetchellite
Fluorite
Related Minerals - Nickel-Strunz Grouping):

- +
2.GB.05Argentotennantite
(Ag,Cu)
 
10
(Zn,Fe)
 
2
(As,Sb)
 
4
S
 
13
2.GB.05Freibergite
(Ag
 
4+2x
Cu
 
2-2x
)[(Cu, Ag)
 
4
(Fe, Zn)
 
2
]Sb
 
4
S
 
12
S
 
1-x
 (0 < x < 1)
2.GB.05Giraudite
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
2.GB.05Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
2.GB.05Hakite
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13
2.GB.05Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
2.GB.05Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
2.GB.10Selenostephanite
Ag
 
5
Sb(Se,S)
 
4
2.GB.10Stephanite
Ag
 
5
SbS
 
4
2.GB.15Pearceite
[(Ag,Cu)
 
6
(As,Sb)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15Polybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15UM2003-14-S:AgBiFeTe
Ag
 
16
FeBiTe
 
3
S
 
8
2.GB.15Selenopolybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
(S,Se)
 
7
][Ag
 
9
Cu(S,Se)
 
2
Se
 
2
]
2.GB.15Cupropearceite
[Cu
 
6
As
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15Cupropolybasite
[Cu
 
6
Sb
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15UM1979-17-S:BiCuFe
Cu
 
18
Fe
 
4
BiS
 
16
Related Minerals - Hey's Index Grouping:

- +
5.4.1Nowackiite
Cu
 
6
Zn
 
3
As
 
4
S
 
12
5.4.2Florensovite
(Cu,Zn)Cr
 
1.5
Sb
 
0.5
S
 
4
5.4.3Aktashite
Cu
 
6
Hg
 
3
As
 
4
S
 
12
5.4.4Laffittite
AgHgAsS
 
3
5.4.6Livingstonite
HgSb
 
4
S
 
8
5.4.7Gruzdevite
Cu
 
6
Hg
 
3
Sb
 
4
S
 
12
5.4.8Tvalchrelidzeite
Hg
 
3
SbAsS
 
3
5.4.9Hakite
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13

Other Names for Galkhaite

Synonyms:
IMA1971-029
Other Languages:
German:Galchait
Galkhait
Russian:Галхаит
Simplified Chinese:硫砷铊汞矿
Spanish:Galkhaita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Galkhaite

Reference List:

- +
American Mineralogist: 59:208.

American Mineralogist: 68: 474.

Canadian Mineralogist: 19: 571-581.

Pekov, I.V. & Bryzgalov, I.A. (2006): New data on galkhaite. New data on minerals, 41: 26-32.

V. I. Vasil’ev, N. V. Pervukhina, S. V. Borisov und S. A. Magarill (2010): New data on the composition and crystal structure of galkhaite (Hg,Cu)6(Cs,Tl)(As,Sb)4S12. Geology of Ore Deposits, 52, 662-668.

Internet Links for Galkhaite

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  • Raman and XRD data at RRUFF project
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  • Galkhaite details from Handbook of Mineralogy (PDF)
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    • Localities for Galkhaite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Ontario
      • Thunder Bay District
        • Marathon
    		G.S.C.Misc.Rep.49, 1991, pp.86-89
    Iran
     
    • West Azarbaijan Province (West Azerbaijan Province)
      • Takab (Takan Tepe)
    		Mehrabi, B. (2008). Solid solution in the As2S3-Sb2S3 Series at Zarshuran Gold Deposit, Iran. Journal of Sciences, Islamic Republic of Iran, 19, 137-143. ; Mehrabi, B., Yardley, B.W.D., and Cann, J.R. (1999): Mineralium Deposita 34, 673-696.; Asadi, H.H., Voncken, J.H.L, Kühnel, R.A., and Hale, M. (2000): Mineralium Deposita 35, 656-671.
    Italy
     
    • Piedmont
      • Torino Province
        • Susa Valley
          • Oulx
            • Signols
    		Biagioni, C., Ciriotti, M.E., Ambrino, P., Brizio, P. (2010): Secondo ritrovamento europeo di galkhaite Cumbë Suřdë, Signols, Piemonte. Micro (UK report), 1/2010, 118-123.
    Kyrgyzstan
     
    • Osh Oblast
      • Alai Range (Alay Range)
    		[Lapis 1993:11 p11-24]
        • Fergana Valley
    		[Lapis 11:11-24]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    		DAN-SSSR,(1972) 205,; Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; V. I. Vasil’ev, N. V. Pervukhina, S. V. Borisov und S. A. Magarill (2010): New data on the composition and crystal structure of galkhaite (Hg,Cu)6(Cs,Tl)(As,Sb)4S12. Geology of Ore Deposits, 52, 662-668.
    USA
     
    • Nevada
      • Elko Co.
        • Independence Mountains District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Eureka Co.
        • Lynn District
          • Elko
    		Min.Rec.:20:469.
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Humboldt Co.
        • Potosi District
          • Adam Peak
    		NBMG Spec. Pub. 31 Minerals of Nevada; Jungles, G. (1974): Galkhaite: A newly described mineral from Siberia found at the Getchell mine, Nevada. Mineralogical Record 5: 290
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia
          • Twin Creeks Mine
            • South Mega pit
    		Colorado School of Mines museum specimens, discovered by Phil Persson.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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