Rouxelite Mineral Data

General Rouxelite Information

Chemical Formula:

Cu2HgPb22Sb28S64(O,S)2

Composition:

Molecular Weight = 10485.87 gm

Copper 1.33 % Cu

Mercury 1.76 % Hg

Antimony 31.47 % Sb

Lead 45.01 % Pb

Sulfur 20.04 % S

Oxygen 0.39 % O

______

100.00 %

Empirical Formula:

Cu_2.2Hg_0.92Pb_22.78Sb_27.1S_65.53O_2.55

Environment:

Occurs in small veinlets that cross-cut dolomitic lenses interstratifed in Ba and Fe-oxide ore, and is closely associated with bournonite, as well as tetrahedrite and sphalerite. Ne w structure type.

IMA Status:

Approved IMA 2002 (Dana # Added)

Locality:

Buca della Vena mine, Apuan Alps. Link to MinDat.org Location Data.

Name Origin:

Named after Jean Rouxel (1935-1998), specialist in solid-state chemistry and member of the French Academy of Science, for his studies of chalcogenides.

Synonym:

IMA2002-062

Rouxelite Crystallography

Axial Ratios:

a:b:c =10.6213:1:9.3306

Cell Dimensions:

a = 43.113, b = 4.0591, c = 37.874, Z = 2; beta = 117.35° V = 5,887.06 Den(Calc)= 5.92

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 3.402(1)(10.0.2,12.0.8,3.369(0.74)(714,0.0.10 2.815(0.7)(317,11.1.4 2.756(0.36)(516,12.0.3 2.116(0.31)(11.1.15 2.251(0.31)(1.1.12,3.1.113.84(0.31)(10.0.8 1.955(0.3)(

Physical Properties of Rouxelite

Cleavage:

None

Color:

Black.

Diaphaneity:

Opaque

Habit:

Acicular - Occurs as needle-like crystals.

Luster:

Metallic

Optical Properties of Rouxelite

RL Anisotrophism:

Distinct.

RL Bireflectance:

Weak.

RL Color:

Light gray.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Rouxelite in Air**
λ	R	∑ R(λ)
470 nm	38.20
546 nm	36.40
589 nm	35.40
650 nm	32.80

**Calculated Relative Intensity Colors of Rouxelite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	260%
R

Calculated Properties of Rouxelite

Electron Density:

Bulk Density (Electron Density)=5.03 gm/cc
note: Specific Gravity of Rouxelite =5.92 gm/cc.

Fermion Index:

Fermion Index = 0.1
Boson Index = 0.9

Photoelectric:

PE_Rouxelite= 953.01 barns/electron
U=PE_Rouxelite x rElectron Density=4,795.38 barns/cc.

Radioactivity:

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

Rouxelite Classification

Dana Class:

03.06.21.02 (03)Sulfides - Sulfosalts

(03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.06.21)Dana Group

03.06.21.01 Pizgrischite! (Cu,Fe)Cu14PbBi17S35 C 2/m 2/m

03.06.21.02 Rouxelite! Cu2HgPb22Sb28S64(O,S)2 C 2/m 2/m

Strunz Class:

02.JB.25j 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.J - Sulfosalts of PbS Archetype

02.JB -Galena derivatives, with Pb

02.JB.25j Rouxelite! Cu2HgPb22Sb28S64(O,S)2 C 2/m 2/m

Other Rouxelite Information

References:

NAME( AmMin, v91, p219)

See Also:

Links to other databases for Rouxelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Rouxelite

Cu2HgPb22Sb28S64(O,S)2
Dana No: 03.06.21.02 Strunz No: 02.JB.25j
Locality:

Notes:

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