IMA2000-044 Mineral Data

IMA2000-044 Mineral Data

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General IMA2000-044 Information

Chemical Formula:

Pb1.6Cu1.6Bi6.4S12

Composition:

Molecular Weight = 2,155.46 gm

Copper 4.72 % Cu

Bismuth 62.05 % Bi

Lead 15.38 % Pb

Sulfur 17.85 % S

______

100.00 %

Empirical Formula:

Pb_1.6Cu_1.6Bi_6.4S₁₂

Environment:

Bismuthinite-aikinite derivative; structure

IMA Status:

Proposed IMA 2000 (Dana # Added)

Locality:

Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2000-044 Crystallography

Axial Ratios:

a:b:c =0.0894:1:0.2569

Cell Dimensions:

a = 4.007, b = 44.81, c = 11.513, V = 2,067.20

Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P mc2₁

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

By Intensity(I/I_o): 2.836(1), 3.631(0.99), 3.156(0.95),3.552(0.82), 3.156(0.59), 3.586(0.55),

Physical Properties of IMA2000-044

Color:

Gray.

Diaphaniety:

Opaque

Luster:

Metallic

Optical Properties of IMA2000-044

RL Anisotrophism:

Distinct.

RL Color:

Grayish white.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of IMA2000-044 in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	39.15	48.36
546 nm	38.26	47.65
589 nm	37.23	47.14
650 nm	36.55	45.71

**Calculated Relative Intensity Colors of IMA2000-044 in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%
R₁
R₂

Calculated Properties of IMA2000-044

Fermion Index

Fermion Index = 0.03533
Boson Index = 0.96467

Photoelectric:

PE_IMA2000-044=1,480.67 barns/electron
U=PE_IMA2000-044 x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

IMA2000-044 is Not Radioactive

IMA2000-044 Classification

Dana Class:

3.4.5.8 (3)Sulfides - Sulfosalts

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

(3.4.5)Aikinite Group (Orthorhombic containing Pb, Cu, Bi, & S)

3.4.5.1 Aikinite PbCuBiS3 Pbnm 2/m 2/m 2/m

3.4.5.2 Krupkaite PbCuBi3S6 P mc2₁ mm2

3.4.5.3 Gladite PbCuBi5S9 P nma 2/m 2/m 2/m

3.4.5.4 Hammarite Pb2Cu2Bi4S9(?) Pbnm 2/m 2/m 2/m

3.4.5.5 Friedrichite Pb5Cu5Bi7S18 Pb21m mm2

3.4.5.6 Pekoite PbCuBi11(S,Se)18 P 2₁am mm2

3.4.5.7 Lindstromite Pb3Cu3Bi7S15 Pbnm 2/m 2/m 2/m

3.4.5.8 IMA2000-044 ! Pb1.6Cu1.6Bi6.4S12 P mc2₁ mm2

Strunz Class:

II/X.00-00 II - Sulfides and sulphosalts

II/X - Unclassified Strunz Sulfides and sulphosalts

II/X.00 - Sulfosalt - Bi

Other IMA2000-044 Information

See Also:

Links to other databases for IMA2000-044 :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch)

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Print or Cut-and-Paste your IMA2000-044 Specimen Label here :

IMA2000-044

Pb1.6Cu1.6Bi6.4S12
Dana No: 3.4.5.8 Strunz No: II/X.00-00
Locality:

Notes: