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Hakite

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Předbořice, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
© Pavel M. Kartashov

Show Hakite Photos (3)



Formula:
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13
System:IsometricColour:Grey-brown to ...
Lustre:MetallicHardness:4½
Member of:Tetrahedrite Group
Name:Named after Jaroslav Hak (1931- ), Czech mineralogist, Institute of Ore Research, Kutna Hora, Czech Republic


Tetrahedrite Group.

Classification of Hakite

IMA status:Approved 1970
Strunz 8th edition ID:2/C.11-70
Nickel-Strunz 10th (pending) edition ID:2.GB.05

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:3.3.6.4

3 : SULFOSALTS
3 : 3 <ø < 4
Hey's CIM Ref.:5.4.9

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 Hakite

Type Locality:Předbořice, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
General Appearance of Type Material:anhedral grains, to 0.3 mm
Place of Conservation of Type Material:Charles University, Prague, Czech Republic; National School of Mines, Paris, France
Geological Setting of type material:in epithermal calcite veins
Associated Minerals at type locality:
BerzelianiteClausthaliteUmangiteChalcopyritePyrite
UraniniteHematiteGoethiteGold

Physical Properties of Hakite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Grey-brown to creamy-white
Streak:White
Hardness (Mohs):4½
Hardness (Vickers):VHN40=306 kg/mm2
Density (calculated):6.3 g/cm3

Crystallography of Hakite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:I4 3m
Cell Parameters:a = 10.83Å
Unit Cell Volume:V 1270.24 ų
Z:8
Morphology:Anhedral grains to 0.3mm
X-Ray Powder Diffraction:
d-spacingIntensity
3.140 (100)
2.910 (70)
2.568 (60)
1.985 (70)
1.925 (90)
1.764 (60)
1.639 (80)

Optical Data of Hakite

Type:Isotropic
Colour in reflected light:Creamy white to clear brown

Chemical Properties of Hakite

Formula:
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13
Essential elements:Cu, Sb, Se
All elements listed in formula:Ag, Cu, Hg, S, Sb, Se
Common Impurities:As

Relationship of Hakite to other Species

Member of:Tetrahedrite Group
Other Members of Group:

- +
Argentotennantite
(Ag,Cu)
 
10
(Zn,Fe)
 
2
(As,Sb)
 
4
S
 
13
Freibergite
(Ag
 
4+2x
Cu
 
2-2x
)[(Cu, Ag)
 
4
(Fe, Zn)
 
2
]Sb
 
4
S
 
12
S
 
1-x
 (0 < x < 1)
Giraudite
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
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.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
2.GB.20Galkhaite
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
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
5.4.5Galkhaite
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
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

Other Names for Hakite

Synonyms:
IMA1970-019
Other Languages:
German:Hakit
Spanish:Hakita

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 Hakite

Reference List:

- +
Bull. Soc. fr. Mineral (1971):94:45-48. American Mineralogist (1972): 57: 1553 (abstract).

Internet Links for Hakite

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

    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.
    Argentina
     
    • La Rioja
      • Sierra de Umango
        • Sierra de Cacho
    		Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    		Bull.Soc.fr.Min.Crist.(1971) 94, 45-48; Econ Geol (1997) 92:468-484
    Josef Vajdak (2008) Mineral News, 24, #3, 15. (collected on dump by Pavel Skacha)
      • Plzeň Region
        • Planá u Mariánských Lázní (Plan)
    		Scharmová, M., Scharm, B.: Minerály selenu na uranovém ložisku Zadní Chodov. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 43-47.
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Nové Město na Moravě
    		HANS-JÜRGEN FÖRSTER and DIETER RHEDE (2002) CONTINUOUS SOLID-SOLUTION BETWEEN MERCURIAN GIRAUDITE AND HAKITE. The Canadian Mineralogist, Vol. 40, pp. 1161-1170
        • Rožná deposit
    		Vavřín, I.: Nové poznatky o selenidech Českého masívu. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 82-89. ; Econ Geol (1997) 92:468-484
    Germany
     
    • Saxony
      • Erzgebirge
        • Schlema-Hartenstein District
    		Can Min 40, 4, (2002), 1161-1170
            • Shaft 366
    		The Canadian Mineralogist, V 42, 2004, pp. 1719-1732.
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
        • Moctezuma
    		Panczner(1987):108-401.
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