Hakite-(Hg)
A valid IMA mineral species
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About Hakite-(Hg)
Jaroslav Hak
Formula:
Cu6(Cu4Hg2)Sb4Se12Se
Colour:
Grey-brown to creamy-white
Lustre:
Metallic
Hardness:
4½
Specific Gravity:
6.3 (Calculated)
Crystal System:
Isometric
Member of:
Name:
Originally named hakite, without the suffix, in honour of Jaroslav Hak (b. 1931, Kutna Hora, Czechoslovakia), geologist and mineralogist in former Institute of Ore Research in Kutná Hora and then in the Czech Geological Survey in Prague. The suffix was added later with the acceptance of the IMA 18-K proposal.
Type Locality:
Isostructural with:
Tetrahedrite Group. Compare the chemically very similar pošepnýite, which may be its Hg4Cu2 analogue.
Renamed from hakite due to the acceptance of the IMA 18-K proposal.
Renamed from hakite due to the acceptance of the IMA 18-K proposal.
Unique Identifiers
Mindat ID:
1803
Long-form identifier:
mindat:1:1:1803:2
GUID
(UUID V4):
(UUID V4):
2a87f11a-687c-4310-aaef-651cd832084d
IMA Classification of Hakite-(Hg)
Approved
IMA Formula:
Cu6(Cu4Hg2)Sb4Se13
Approval year:
1970
First published:
1971
Classification of Hakite-(Hg)
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
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
3.3.6.4
3 : SULFOSALTS
3 : 3 <ø < 4
3 : SULFOSALTS
3 : 3 <ø < 4
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
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
4 : Sulpharsenites etc. of Zn and Hg
Mineral Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Hak-Hg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Hak | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Pronunciation of Hakite-(Hg)
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Hakite-(Hg)
Metallic
Transparency:
Opaque
Colour:
Grey-brown to creamy-white
Streak:
White
Hardness:
4½ on Mohs scale
Hardness:
VHN40=306 kg/mm2 - Vickers
Density:
6.3 g/cm3 (Calculated)
Optical Data of Hakite-(Hg)
Type:
Isotropic
Reflectivity:
| Wavelength | R |
|---|---|
| 420nm | 32.8% |
| 440nm | 33.8% |
| 460nm | 34.0% |
| 480nm | 34.0% |
| 500nm | 33.7% |
| 520nm | 33.2% |
| 540nm | 33.0% |
| 560nm | 33.1% |
| 580nm | 33.2% |
| 600nm | 33.5% |
| 620nm | 33.9% |
| 640nm | 33.6% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 34.0%.
Colour in reflected light:
Creamy white to clear brown
Chemistry of Hakite-(Hg)
Mindat Formula:
Cu6(Cu4Hg2)Sb4Se12Se
Elements listed:
Common Impurities:
As
Crystallography of Hakite-(Hg)
Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3m
Cell Parameters:
a = 10.83 Å
Unit Cell V:
1270.24 ų
Z:
8
Morphology:
Anhedral grains to 0.3mm.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.140 Å | (100) |
| 2.910 Å | (70) |
| 2.568 Å | (60) |
| 1.985 Å | (70) |
| 1.925 Å | (90) |
| 1.764 Å | (60) |
| 1.639 Å | (80) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-𝑇 alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Hakite-(Hg)
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:
Reference:
Johan, Z., Kvacek, M. (1971) La hakite, un nouveau minéral du groupe de la tétraédrite. Bulletin de la Société Française de Minéralogie et de Cristallographie: 94: 45-48.
Synonyms of Hakite-(Hg)
Other Language Names for Hakite-(Hg)
Relationship of Hakite-(Hg) to other Species
Member of:
Other Members of this group:
| Hakite-(Cd) | Cu6(Cu4Cd2)Sb4Se12Se | Iso. 4 3m : I4 3m |
| Hakite-(Fe) | Cu6(Cu4Fe2+2)Sb4Se12Se | Iso. 4 3m : I4 3m |
| Hakite-(Zn) | Cu6(Cu4Zn2)Sb4Se12Se | Iso. 4 3m : I4 3m |
Common Associates
Associated Minerals Based on Photo Data:
| 26 photos of Hakite-(Hg) associated with Clausthalite | PbSe |
| 12 photos of Hakite-(Hg) associated with Berzelianite | Cu2-xSe (x ≈ 0.12) |
| 9 photos of Hakite-(Hg) associated with Eucairite | AgCuSe |
| 7 photos of Hakite-(Hg) associated with Tiemannite | HgSe |
| 4 photos of Hakite-(Hg) associated with Calcite | CaCO3 |
| 2 photos of Hakite-(Hg) associated with Gold | Au |
| 2 photos of Hakite-(Hg) associated with Chalcopyrite-Eskebornite Series | |
| 1 photo of Hakite-(Hg) associated with Milotaite | PdSbSe |
| 1 photo of Hakite-(Hg) associated with Chalcopyrite | CuFeS2 |
| 1 photo of Hakite-(Hg) associated with Tetrahedrite Subgroup | Cu6(Cu4C2+2)Sb4S12S |
Related Minerals - Strunz-mindat Grouping
| 2.GB. | Polybasite-Tac | |
| 2.GB. | Argentotetrahedrite-(Hg) | Ag6(Cu4Hg2)Sb4S12S |
| 2.GB. | Hakite-(Zn) | Cu6(Cu4Zn2)Sb4Se12Se |
| 2.GB. | Hakite-(Cd) | Cu6(Cu4Cd2)Sb4Se12Se |
| 2.GB. | Argentotetrahedrite-(Zn) | Ag6(Cu4Zn2)Sb4S12S |
| 2.GB. | Pošepnýite | (Cu+3◻3)(Hg2+4Cu+2)Sb4Se12(Se0.5◻0.5) |
| 2.GB. | Argentopearceite | Ag16As2S11 |
| 2.GB. | Zvěstovite-(Zn) | Ag6(Ag4Zn2)As4S12S |
| 2.GB. | Kenoargentotennantite-(Fe) | [Ag6]4+(Cu4Fe2)As4S12◻ |
| 2.GB. | Tennantite-(Hg) | Cu6(Cu4Hg2)As4S12S |
| 2.GB. | Kenoargentotetrahedrite-(Zn) | [Ag6]4+(Cu4Zn2)Sb4S12◻ |
| 2.GB. | Tennantite-(Cu) | Cu6(Cu4Cu2)As4S12S |
| 2.GB. | Stibiogoldfieldite | (Cu4Cu2)(Cu4Cu+2)(Sb2Te2)S12S |
| 2.GB. | Tennantite-(Ni) | Cu6(Cu4Ni2)As4S12S |
| 2.GB. | Tetrahedrite-(Ni) | Cu6(Cu4Ni2)Sb4S12S |
| 2.GB. | Stibioústalečite | (Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12Se |
| 2.GB. | Arsenogoldfieldite | (Cu4Cu2)(Cu4Cu+2)(As2Te2)S12S |
| 2.GB. | Tennantite-(In) | Cu6(Cu4(In3+Cu+))As4S12S |
| 2.GB. | Tennantite-(Cd) | Cu6(Cu4Cd2)As4S12S |
| 2.GB. | Tetrahedrite-(Mn) | Cu6(Cu4Mn2)Sb4S12S |
| 2.GB. | Argentopolybasite | [Ag6Sb2S7][Ag9AgS4] |
| 2.GB.X | Kenorozhdestvenskayaite-(Fe) | [Ag6]4+(Ag4Fe2+2)Sb4S12◻ |
| 2.GB. | Argentotetrahedrite-(Cd) | Ag6(Cu4Cd2)Sb4S12S |
| 2.GB. | Tennantite-(Mn) | Cu6(Cu4Mn2)As4S12S |
| 2.GB. | Zvěstovite-(Fe) | Ag6(Ag4Fe2+2)As4S12S |
| 2.GB. | Hakite-(Fe) | Cu6(Cu4Fe2+2)Sb4Se12Se |
| 2.GB. | Tetrahedrite-(Cu) | Cu6(Cu4Cu2+2)Sb4S12S |
| 2.GB. | Arsenoústalečite | (Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12Se |
| 2.GB. | Tetrahedrite-(Cd) | Cu6(Cu4Cd2)Sb4S12S |
| 2.GB.05 | Argentotennantite-(Zn) | Ag6(Cu4Zn2)As4S12S |
| 2.GB.05 | Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1 |
| 2.GB.05 | Giraudite-(Zn) | Cu6(Cu4Zn2)As4Se12Se |
| 2.GB.05 | Goldfieldite | (Cu4◻2)(Cu4Cu+2)Te4S12S |
| 2.GB.05 | Tennantite Subgroup | Cu6(Cu4C2+2)As4S12S |
| 2.GB.05 | Tetrahedrite Subgroup | Cu6(Cu4C2+2)Sb4S12S |
| 2.GB.05 | Argentotetrahedrite-(Fe) | Ag6(Cu4Fe2)Sb4S12S |
| 2.GB.05 | Rozhdestvenskayaite-(Zn) | Ag6(Ag4Zn2)Sb4S12S |
| 2.GB.05 | UM1992-21-S:AgFeSb | Ag6(Ag4Fe2+2)Sb4S12S |
| 2.GB.05 | Tennantite-(Zn) | Cu6(Cu4Zn2)As4S12S |
| 2.GB.05 | Tetrahedrite-(Zn) | Cu6(Cu4Zn2)Sb4S12S |
| 2.GB.05 | Tennantite-(Fe) | Cu6(Cu4Fe2+2)As4S12S |
| 2.GB.05 | Tetrahedrite-(Fe) | Cu6(Cu4Fe2+2)Sb4S12S |
| 2.GB.05 | Kenoargentotetrahedrite-(Fe) | [Ag6]4+(Cu4Fe2+2)Sb4S12◻ |
| 2.GB.05 | Tetrahedrite-(Hg) | Cu6(Cu4Hg2)Sb4S12S |
| 2.GB.10 | Selenostephanite | Ag5SbSe4 |
| 2.GB.10 | Stephanite | Ag5SbS4 |
| 2.GB.15 | Pearceite | [Ag6As2S7][Ag9CuS4] |
| 2.GB.15 | Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| 2.GB.15 | UM2003-14-S:AgBiFeTe | Ag16FeBiTe3S8 |
| 2.GB.15 | Selenopolybasite | [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] |
| 2.GB.15 | Cupropearceite | [Cu6As2S7][Ag9CuS4] |
| 2.GB.15 | Cupropolybasite | [Cu6Sb2S7][Ag9CuS4] |
| 2.GB.15 | UM1979-17-S:BiCuFe | ~Cu18Fe4BiS16 |
| 2.GB.20 | Galkhaite | (Hg5Cu)CsAs4S12 |
| 2.GB.20 | Vorontsovite | (Hg5Cu)Σ6TlAs4S12 |
| 2.GB.20 | Ferrovorontsovite | (Fe5Cu)Σ6TlAs4S12 |
Other Information
Notes:
Turns brown with 20% KCN solution; other reagents negative.
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 Hakite-(Hg)
mindat.org URL:
https://www.mindat.org/min-1803.html
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Hakite-(Hg)
Reference List:
Johan, Zdenek, Kvacek, Milan (1971) La hakite, un nouveau minéral du groupe de la tétraédrite. Bulletin de Minéralogie, 94 (1) 45-48 doi:10.3406/bulmi.1971.6549
Localities for Hakite-(Hg)
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Argentina | |
| Milka K. de Brodtkorb (2002) +2 other references |
Czech Republic | |
| Josef Vajdak (2008) +3 other references |
| Pavel Skacha photo +1 other reference |
| Kopecký et al. (2010) |
| Sejorka et al. (2014) |
| Scharmová et al. (1995) |
| Johan et al. (1971) +1 other reference |
| Förster et al. (2002) |
| Vavřín +1 other reference |
Germany | |
| Can Min 40 et al. (2002) +1 other reference |
| Forster et al. (2004) |
Japan | |
| Nakata et al. (2011) +1 other reference |
Mexico | |
| Panczner (1987) |
Russia | |
| B. B. Damdinov et al. (2016) |
| Pavel M. Kartashov analytical data of ... |
Sweden | |
| Adelmann et al. (2022) |
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Předbořice deposit, Předbořice, Kovářov, Písek District, South Bohemian Region, Czech Republic