Bogdanovite Mineral Data

Bogdanovite Mineral Data +

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General Bogdanovite Information

Chemical Formula:

(Au,Te,Pb)3(Cu,Fe)

Composition:

Molecular Weight = 592.69 gm

Iron 3.20 % Fe

Copper 7.08 % Cu

Tellurium 21.53 % Te

Lead 34.96 % Pb

Gold 33.23 % Au

______

100.00 %

Empirical Formula:

AuTePbCu_0.66Fe²⁺_0.34

Environment:

Oxidation zone of Au-Te deposits.

IMA Status:

Approved IMA 1979

Locality:

Dalnii Vostok, Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named for Aleksei A. Bogdanov (1907-1971), Russian geologist.

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Bogdanovite Crystallography

Cell Dimensions:

a = 4.088, Z = 1; V = 68.32 Den(Calc)= 14.40

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: P m3m

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

By Intensity(I/I_o): 2.36(1), 1.23(0.8), 2.045(0.6),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
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Help on Above

Bayliss P , The Canadian Mineralogist , 28 (1990) p.751-755, Revised unit cell dimensions, space group,, and chemical formua of some metallic minerals

Physical Properties of Bogdanovite

Cleavage:

None

Color:

Brown, Bronze brown, Bluish black.

Diaphaniety:

Opaque

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Habit:

Tarnishes - Freshly fractured surfaces form a surface oxidation film

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Sub Metallic

Optical Properties of Bogdanovite

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Bogdanovite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
540 nm	5.60	29.50
560 nm	6.10	34.50
580 nm	8.40	37.60
600 nm	13.50	39.20
640 nm	29.50	39.80
660 nm	36.20	39.00
680 nm	41.20	37.70
700 nm	44.90	35.70

**Calculated Relative Intensity Colors of Bogdanovite in Air**
Relative Intensity	0%	100%	200%	300%	400%	500%	600%	700%	800%	900%	1000%
R₁
R₂

Calculated Properties of Bogdanovite

Electron Density:

r_electron=11.7 gm/cc
note: r_Bogdanovite=14.4 gm/cc.

Fermion Index

Fermion Index = 0.09513
Boson Index = 0.90487

Photoelectric:

PE_Bogdanovite=1,301.89 barns/electron
U=PE_Bogdanovite x r_electron=15244.63 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bogdanovite is Not Radioactive

Bogdanovite Classification

Dana Class:

2.2.3.1 (2)Sulfides - Including Selenides and Tellurides

(2.2)where Am Bn Xp, with (m+n):p=3:1

(2.2.3)Dana Group

2.2.3.1 Bogdanovite (Au,Te,Pb)3(Cu,Fe) P m3m 4/m 3 2/m

Strunz Class:

I/A.01-65 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.01 - Series Copper, Silver and Gold

I/A.01-10 Copper Cu F m3m 4/m 3 2/m

I/A.01-15 Allabogdanite! (Fe,Ni)2P P nma 2/m 2/m 2/m

I/A.01-20 Silver Ag F m3m 4/m 3 2/m

I/A.01-40 Gold Au F m3m 4/m 3 2/m

I/A.01-50 Auricupride Cu3Au P m3m 4/m 3 2/m

I/A.01-60 Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m

I/A.01-65 Bogdanovite (Au,Te,Pb)3(Cu,Fe) P m3m 4/m 3 2/m

I/A.01-68 Hunchunite! (Au,Ag)2Pb F d3m 4/m 3 2/m

I/A.01-70 Anyuiite Au(Pb,Sb)2 I 4/mcm 4/m 2/m 2/m

Other Bogdanovite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

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Print or Cut-and-Paste your Bogdanovite Specimen Label here :

Bogdanovite

(Au,Te,Pb)3(Cu,Fe)
Dana No: 2.2.3.1 Strunz No: I/A.01-65
Locality:

Notes: