Sakharovaite Mineral Data

Sakharovaite Mineral Data +

General Sakharovaite Information

Chemical Formula:

(Pb,Fe)(Bi,Sb)2S4

Composition:

Molecular Weight = 656.33 gm

Iron 0.85 % Fe

Bismuth 38.21 % Bi

Antimony 12.99 % Sb

Lead 28.41 % Pb

Sulfur 19.54 % S

______

100.00 %

Empirical Formula:

Pb_0.9Fe²⁺_0.1Bi_1.2Sb_0.7S₄

Environment:

in carbonate veinlets cutting arsenopyrite ore.

IMA Status:

Valid Species (Pre-IMA) 1955

Locality:

Ustarasaisk deposit, Tian Shan Mountains, Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named for Marina S. Sakharova (1917-), Russian mineralogist.

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Sakharovaite Crystallography

Crystal System:

Monoclinic

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

By Intensity(I/I_o): 3.412(1), 2.031(0.6), 2.721(0.6),

Physical Properties of Sakharovaite

Cleavage:

[???] Perfect

Color:

Lead gray.

Diaphaniety:

Opaque

Habit:

Acicular - Occurs as needle-like crystals.

Luster:

Metallic

Optical Properties of Sakharovaite

RL Anisotrophism:

Strong, with reddish internal reflections seen only in oil.

RL Color:

Pure white.

RL Pleochroism:

Birefringent.

Calculated Properties of Sakharovaite

Fermion Index

Fermion Index = 0.06443
Boson Index = 0.93557

Photoelectric:

PE_Sakharovaite=1,298.02 barns/electron
U=PE_Sakharovaite x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sakharovaite is Not Radioactive

Sakharovaite Classification

Dana Class:

3.7.9.2 (3)Sulfides - Sulfosalts

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

(3.7.9)Dana Group

3.7.9.1 Galenobismutite PbBi2S4 Pnam 2/m 2/m 2/m

3.7.9.2 Sakharovaite (Pb,Fe)(Bi,Sb)2S4 Mono

3.7.9.3 Berthierite FeSb2S4 Pnam 2/m 2/m 2/m

3.7.9.4 Garavellite FeSbBiS4 Pnam 2/m 2/m 2/m

3.7.9.5 Clerite! MnSb2S4 Pnam 2/m 2/m 2/m

Strunz Class:

II/E.22-40 II - Sulfides and sulphosalts

II/E - Sulfosalts (S : As,Sb,Bi = x) Complex Lead-Sulfosalts (Pb-Fe/Mn, Pb-Ag), with predominant Antimon x = 2.3 - 2.0

II/E.22 - Jamesonite - Sakharovaite series

II/E.22-10 Jamesonite Pb4FeSb6S14 P 2₁/a 2/m

II/E.22-20 Benavidesite Pb4(Mn,Fe)Sb6S14 P 2₁/a 2/m

II/E.22-30 Parajamesonite Pb4FeSb6S14 Unk Ortho

II/E.22-40 Sakharovaite (Pb,Fe)(Bi,Sb)2S4 Mono

Other Sakharovaite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

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

Sakharovaite

(Pb,Fe)(Bi,Sb)2S4
Dana No: 3.7.9.2 Strunz No: II/E.22-40
Locality:

Notes: