Hakite Mineral Data

General Hakite Information

Chemical Formula:

(Cu,Hg)3(Sb,As)(Se,S)3

Composition:

Molecular Weight = 606.78 gm

Copper 26.18 % Cu

Mercury 16.53 % Hg

Antimony 16.05 % Sb

Arsenic 3.70 % As

Selenium 33.83 % Se

Sulfur 3.70 % S

______

100.00 %

Empirical Formula:

Cu_2.5Hg_0.5Sb_0.8As_0.3Se_2.6S_0.7

Environment:

Epithermal calcite veins.

IMA Status:

Approved IMA 1971

Locality:

At Bukov and Predborice, Czechoslovakia. Link to MinDat.org Location Data.

Name Origin:

Named for Jaroslav Hak, mineralogist, Institute of Ore Research, Kutna Hora, Czechoslovakia.

Name Pronunciation:

Hakite

Synonym:

ICSD 400652

PDF 25-297

Hakite Image

Images:

Chrisstanleyite Hakite

Comments: Polished section showing chrisstanleyite (chr) is present as a single grain intergrown with clausthalite (cl) and eucairite (eu). cp (chalcopyrite), ha (hakite), di (selenian digenite), bo (bornite). (CanMin, v43:689).
Location: Low-temperature selenium-rich assemblage at Predborice, Czech Republic. Scale: See Image.
© Canadian Mineralogist

Images:

Giraudite Hakite

Comments: Polished Section image of giraudite-hakite (gir-hak) with berzelianite (bzl ) and galena (gln). (CanMin, v40:1161).
Location: Niederschlema-Alberoda uranium deposit, Erzgebirge, Germany. Scale: See Image.
© Canadian Mineralogist

Hakite Crystallography

Cell Dimensions:

a = 10.88, Z = 8; V = 1,287.91 Den(Calc)= 6.26

Crystal System:

Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: I 43m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.14(1), 1.925(0.9), 1.639(0.8),

Physical Properties of Hakite

Cleavage:

None

Color:

Gray brown.

Density:

6.3

Diaphaneity:

Opaque

Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

white

Optical Properties of Hakite

RL Color:

Creamy white to clear brown.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Hakite in Air**
λ	R	∑ R(λ)
400 nm	31.80
420 nm	32.50
440 nm	33.20
460 nm	33.60
480 nm	33.70
500 nm	33.70
520 nm	33.50
540 nm	33.40
560 nm	33.40
580 nm	33.50
600 nm	33.60
620 nm	33.60
640 nm	33.60
660 nm	33.50
680 nm	33.50
700 nm	33.40

**Calculated Relative Intensity Colors of Hakite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	270%
R

Calculated Properties of Hakite

Electron Density:

Bulk Density (Electron Density)=5.42 gm/cc
note: Specific Gravity of Hakite =6.26 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Hakite= 367.66 barns/electron
U=PE_Hakite x rElectron Density=1,993.62 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hakite is Not Radioactive

Hakite Classification

Dana Class:

03.03.06.04 (03)Sulfides - Sulfosalts

(03.03)where 3 < z/y < 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.03.06)Tetrahedrite Group (Isometric: I-43m)

03.03.06.01 Tetrahedrite (Cu,Fe)12Sb4S13 I 43m 4 3m

03.03.06.02 Tennantite (Cu,Fe)12As4S13 I 43m 4 3m

03.03.06.03 Freibergite (Ag,Cu,Fe)12(Sb,As)4S13 I 43m 4 3m

03.03.06.04 Hakite (Cu,Hg)3(Sb,As)(Se,S)3 I 43m 4 3m

03.03.06.05 Giraudite (Cu,Zn,Ag)12(As,Sb)4(Se,S)13 I 43m 4 3m

03.03.06.06 Goldfieldite Cu12(Te,Sb,As)4S13 I 43m 4 3m

03.03.06.07 Argentotennantite (Ag,Cu)10(Zn,Fe)2(As,Sb)4S13 I 43m 4 3m

Strunz Class:

02.GB.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.G - Sulfarsenites, sulfantimonites, sulfbismuthites

02.GB -Neso-sulfarsenites, etc

02.GB.05 Argentotennantite (Ag,Cu)10(Zn,Fe)2(As,Sb)4S13 I 43m 4 3m

02.GB.05 Giraudite (Cu,Zn,Ag)12(As,Sb)4(Se,S)13 I 43m 4 3m

02.GB.05 Goldfieldite Cu12(Te,Sb,As)4S13 I 43m 4 3m

02.GB.05 Freibergite (Ag,Cu,Fe)12(Sb,As)4S13 I 43m 4 3m

02.GB.05 Hakite (Cu,Hg)3(Sb,As)(Se,S)3 I 43m 4 3m

02.GB.05 Tennantite (Cu,Fe)12As4S13 I 43m 4 3m

02.GB.05 Tetrahedrite (Cu,Fe)12Sb4S13 I 43m 4 3m

Other Hakite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Hakite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Hakite

(Cu,Hg)3(Sb,As)(Se,S)3
Dana No: 03.03.06.04 Strunz No: 02.GB.05
Locality:

Notes:

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