Parajamesonite Mineral Data

Parajamesonite Mineral Data +

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General Parajamesonite Information

Chemical Formula:

Pb4FeSb6S14

Composition:

Molecular Weight = 2,064.07 gm

Iron 2.71 % Fe

Antimony 35.39 % Sb

Lead 40.15 % Pb

Sulfur 21.75 % S

______

100.00 %

Empirical Formula:

Pb₄Fe²⁺Sb₆S₁₄

Environment:

In a hydrothermal deposit, late-stage mineral.

IMA Status:

Valid Species (Pre-IMA) 1947

Locality:

Herja, Romania. Link to MinDat.org Location Data.

Name Origin:

Named as a dimorph of jamesonite.

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Parajamesonite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 4.203(1), 3.777(0.6), 2.483(0.3),

Physical Properties of Parajamesonite

Cleavage:

None

Color:

Gray.

Density:

5.479 - 5.485, Average = 5.48

Diaphaniety:

Opaque

Habit:

Columnar - Forms columns

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Metallic

Calculated Properties of Parajamesonite

Electron Density:

r_electron=4.70 gm/cc
note: r_{Parajamesonite}=5.48 gm/cc.

Fermion Index

Fermion Index = 0.09094
Boson Index = 0.90906

Photoelectric:

PE_{Parajamesonite}= 843.35 barns/electron
U=PE_{Parajamesonite} x r_electron=3,960.09 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Parajamesonite is Not Radioactive

Parajamesonite Classification

Dana Class:

3.6.9.1 (3)Sulfides - Sulfosalts

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

(3.6.9)Dana Group

3.6.9.1 Parajamesonite Pb4FeSb6S14 Unk Ortho

Strunz Class:

II/E.22-30 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 Parajamesonite Information

References:

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

See Also:

Links to other databases for Parajamesonite :
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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Parajamesonite

Pb4FeSb6S14
Dana No: 3.6.9.1 Strunz No: II/E.22-30
Locality:

Notes: