Lillianite Mineral Data

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General Lillianite Information

Chemical Formula:

Pb3Bi2S6

Composition:

Molecular Weight = 1,231.96 gm

Bismuth 33.93 % Bi

Lead 50.46 % Pb

Sulfur 15.62 % S

______

100.00 %

Empirical Formula:

Pb₃Bi₂S₆

Environment:

In hydrothermal veins of probable high temperature origin.

IMA Status:

Valid Species (Pre-IMA) 1889

Locality:

Leadville, Colorado, USA. Link to MinDat.org Location Data.

Name Origin:

Named after the Lillian Mining Co. in Colorado.

Name Pronunciation:

Lillianite + Pronunciation

Synonym:

ICSD 2737

PDF 29-763

Lillianite Image

Images:

Lillianite

Comments: Gray metallic massive lillianite in clear quartz.
Location: Gladhammar, Kalmar, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Lillianite Crystallography

Axial Ratios:

a:b:c =0.6561:1:0.1995

Cell Dimensions:

a = 13.522, b = 20.608, c = 4.112, Z = 4; V = 1,145.86 Den(Calc)= 7.14

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Bbmm

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

By Intensity(I/I_o): 3.51(1), 2.14(0.9), 2.92(0.9),

Crystal Structure:

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drag2 - RMB Resize/Rotate
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Pinto D , Balic-Zunic T , Garavelli A , Makovicky E , Vurro F , The Canadian Mineralogist , 44 (2006) p.159-175, Comparative crystal-structure study of Ag-free lillianite, and galenobismutite from Vulcano, Aeolian Islands, Italy, Locality: Vulcano, Aeolian Islands, Italy

View Additional jPOWD Structure files for Lillianite
[1]

Physical Properties of Lillianite

Cleavage:

{100} Good, {010} Poor

Color:

Steel gray.

Density:

Diaphaneity:

Opaque

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Non-fluorescent.

Luster:

Metallic

Magnetism:

Nonmagnetic

Streak:

black

Optical Properties of Lillianite

Optical Data:

NCalc= 1.41 - from Gladstone-Dale relationship (KC = 0.0579) where Ncalc=Dcalc*KC+1
NCalc= 1.41 - from Gladstone-Dale relationship (KC = 0.0579) where Ncalc=Dmeas*KC+1

RL Anisotrophism:

Distinct.

RL Color:

White.

RL Pleochroism:

Very weak.

Calculated Properties of Lillianite

Electron Density:

Bulk Density (Electron Density)=5.89 gm/cc
note: Specific Gravity of Lillianite =7.14 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Lillianite=1,602.20 barns/electron
U=PE_Lillianite x rElectron Density=9,434.35 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lillianite is Not Radioactive

Lillianite Classification

Dana Class:

03.04.15.01 (03)Sulfides - Sulfosalts

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

(03.04.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi)

03.04.15.01 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m

03.04.15.02 Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m

03.04.15.03 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m

03.04.15.04 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m

03.04.15.05 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m

03.04.15.06 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m

03.04.15.07 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m

03.04.15.08 Fizelyite Pb14Ag5Sb21S48(?) P 2₁/n 2/m

Strunz Class:

02.JB.40a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.J - Sulfosalts of PbS Archetype

02.JB -Galena derivatives, with Pb

02.JB.40a Fizelyite Pb14Ag5Sb21S48(?) P 2₁/n 2/m

02.JB.40a Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m

02.JB.40a Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m

02.JB.40a Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m

02.JB.40a Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m

02.JB.40a Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m

02.JB.40a Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m

02.JB.40a Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m

02.JB.40a Xilingolite Pb3Bi2S6 C 2/m 2/m

02.JB.40a Treasurite Ag7Pb6Bi15S32 B2/m 2/m

02.JB.40a Vikingite Ag5Pb8Bi13S30 C 2/m 2/m

Other Lillianite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Lillianite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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Lillianite

Pb3Bi2S6
Dana No: 03.04.15.01 Strunz No: 02.JB.40a
Locality:

Notes: