Hauchecornite Mineral Data

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General Hauchecornite Information

Chemical Formula:

Ni9Bi(Sb,Bi)S8

Composition:

Molecular Weight = 1,137.28 gm

Nickel 46.45 % Ni

Bismuth 22.97 % Bi

Antimony 8.03 % Sb

Sulfur 22.56 % S

______

100.00 %

Empirical Formula:

Ni₉Bi_1.25Sb_0.75S₈

Environment:

Hydrothermal origin.

IMA Status:

Valid Species (Pre-IMA) 1893

Locality:

From the Friedrich mine, near Wissen, North Rhine-Westphalia, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for William Hauchecorn (1828-1900), Director of the Geological Survey and the Mining Academy, Berlin, Germany.

Name Pronunciation:

Hauchecornite + Pronunciation

Synonym:

ICSD 40055

PDF 6-457

Hauchecornite Image

Images:

Hauchecornite

Comments: B&W polished section image showing arsenian hauchecornite (hc) with bornite (bn). (Mineralogical Journal, v9:199).
Location: Tsumo mine, Shimane Prefecture, Japan. Scale: See Image.
© Mineralogical Journal

Hauchecornite Crystallography

Axial Ratios:

a:c = 1:0.74074

Cell Dimensions:

a = 7.29, c = 5.4, Z = 1; V = 286.98 Den(Calc)= 6.58

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm

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

By Intensity(I/I_o): 2.79(1), 2.3(0.6), 2.39(0.6),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
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Kocman V , Nuffield E W , The Canadian Mineralogist , 12 (1974) p.269-274, The crystal structure of antimonian hauchecornite from Westphalia, Locality: Westphalia

Physical Properties of Hauchecornite

Cleavage:

None

Color:

Bronze, Brown, Dark.

Density:

6.36

Diaphaneity:

Opaque

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

grayish black

Optical Properties of Hauchecornite

RL Anisotrophism:

Distinct.

RL Pleochroism:

Very weak in air, more distinct in oil.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Hauchecornite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	35.80	37.90
420 nm	37.20	39.30
440 nm	38.60	40.70
460 nm	40.00	42.20
480 nm	41.40	43.80
500 nm	42.70	45.40
520 nm	44.00	46.90
540 nm	45.20	48.20
560 nm	46.30	49.30
580 nm	47.30	50.20
600 nm	48.20	51.00
620 nm	49.00	51.70
640 nm	49.70	52.30
660 nm	50.40	52.90
680 nm	51.00	53.40
700 nm	51.50	53.90

**Calculated Relative Intensity Colors of Hauchecornite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	230%
R₁
R₂

Calculated Properties of Hauchecornite

Electron Density:

Bulk Density (Electron Density)=6.04 gm/cc
note: Specific Gravity of Hauchecornite =6.58 gm/cc.

Fermion Index:

Fermion Index = 0.0069402627
Boson Index = 0.9930597373

Photoelectric:

PE_{Hauchecornite}= 449.26 barns/electron
U=PE_{Hauchecornite} x rElectron Density=2,713.69 barns/cc.

Radioactivity:

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

Hauchecornite Classification

Dana Class:

03.02.05.01 (03)Sulfides - Sulfosalts

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

(03.02.05)Hauchecornite Group, Complex Ni sulfides (Tetragonal: P4/nnn or I4/mmm)

03.02.05.01 Hauchecornite Ni9Bi(Sb,Bi)S8 P 4/mmm 4/m 2/m 2/m

03.02.05.02 Bismutohauchecornite Ni9Bi2S8 P 4/mmm 4/m 2/m 2/m

03.02.05.03 Tellurohauchecornite Ni9BiTeS8 P 4/mmm 4/m 2/m 2/m

03.02.05.04 Arsenohauchecornite Ni18Bi3AsS16 I 4/mmm 4/m 2/m 2/m

03.02.05.05 Tucekite Ni9Sb2S8 P 4/mmm 4/m 2/m 2/m

Strunz Class:

02.BB.10 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)

02.BB -With Ni, Fe

02.BB.10 Arsenohauchecornite Ni18Bi3AsS16 I 4/mmm 4/m 2/m 2/m

02.BB.10 Bismutohauchecornite Ni9Bi2S8 P 4/mmm 4/m 2/m 2/m

02.BB.10 Hauchecornite Ni9Bi(Sb,Bi)S8 P 4/mmm 4/m 2/m 2/m

02.BB.10 Tellurohauchecornite Ni9BiTeS8 P 4/mmm 4/m 2/m 2/m

02.BB.10 Tucekite Ni9Sb2S8 P 4/mmm 4/m 2/m 2/m

Other Hauchecornite Information

References:

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

See Also:

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

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Hauchecornite

Ni9Bi(Sb,Bi)S8
Dana No: 03.02.05.01 Strunz No: 02.BB.10
Locality:

Notes: