Bilibinskite Mineral Data

Bilibinskite Mineral Data +

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General Bilibinskite Information

Chemical Formula:

Au3Cu2PbTe2

Composition:

Molecular Weight = 1,180.39 gm

Copper 10.77 % Cu

Tellurium 21.62 % Te

Lead 17.55 % Pb

Gold 50.06 % Au

______

100.00 %

Empirical Formula:

Au₃Cu₂PbTe₂

Environment:

Weathering zone of gold-telluride deposits.

IMA Status:

Approved IMA 1978

Locality:

Far Eastern region, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Yuri A. Bilibin (1902-1952), Russian geologist.

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Bilibinskite Crystallography

Cell Dimensions:

a = 8.19, Z = 4; V = 549.35 Den(Calc)= 14.27

Crystal System:

IsometricSpace Group: Unk

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

By Intensity(I/I_o): 2.37(1), 1.232(0.8), 2.05(0.7),

Physical Properties of Bilibinskite

Cleavage:

None

Color:

Bronze brown, Light brown, Pink brown.

Density:

14.27

Diaphaniety:

Opaque

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

5 - Apatite

Luster:

Sub Metallic

Streak:

brown

Calculated Properties of Bilibinskite

Electron Density:

r_electron=11.6 gm/cc
note: r_Bilibinskite=14.3 gm/cc.

Fermion Index

Fermion Index = 0.05606
Boson Index = 0.94394

Photoelectric:

PE_Bilibinskite=1,253.14 barns/electron
U=PE_Bilibinskite x r_electron=14573.81 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bilibinskite is Not Radioactive

Bilibinskite Classification

Dana Class:

2.1.6.1 (2)Sulfides - Including Selenides and Tellurides

(2.1)where Am Xp, with m:p>3:1

(2.1.6)Dana Group

2.1.6.1 Bilibinskite Au3Cu2PbTe2 Unk Cubic

Strunz Class:

II/A.03-30 II - Sulfides and sulphosalts

II/A - Alloys and alloylike compounds, with Copper, Silver, Gold and Nickel

II/A.03 - Bezsmertnovite - Maldonite series

II/A.03-10 Bezsmertnovite Au4Cu(Te,Pb) Pmmn 2/m 2/m 2/m

II/A.03-30 Bilibinskite Au3Cu2PbTe2 Unk Cubic

II/A.03-40 Maldonite Au2Bi F d3m 4/m 3 2/m

Other Bilibinskite Information

References:

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

See Also:

Links to other databases for Bilibinskite :
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 Bilibinskite Specimen Label here :

Bilibinskite

Au3Cu2PbTe2
Dana No: 2.1.6.1 Strunz No: II/A.03-30
Locality:

Notes: