Vikingite Mineral Data

General Vikingite Information

Chemical Formula:

Ag5Pb8Bi13S30

Composition:

Molecular Weight = 5,875.67 gm

Silver 9.18 % Ag

Bismuth 46.24 % Bi

Lead 28.21 % Pb

Sulfur 16.37 % S

______

100.00 %

Empirical Formula:

Ag₅Pb₈Bi₁₃S₃₀

Environment:

Associated with cosalite and as lamellae in galena in the gustavite-galena paragenesis.

IMA Status:

Approved IMA 1977

Locality:

Ivigtut, Greenland. Link to MinDat.org Location Data.

Name Origin:

Named for the Vikings, who settled Greenland in the tenth century.

Name Pronunciation:

Vikingite + Pronunciation

Synonym:

ICSD 72805

PDF 43-690

Vikingite Image

Images:

Vikingite

Comments: Gray to bronze tarnished platy vikingite masses in quartz.
Location: Roche Balue, Vendee, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Vikingite Crystallography

Axial Ratios:

a:b:c =0.5387:1:0.1628

Cell Dimensions:

a = 13.603, b = 25.248, c = 4.112, Z = 1; beta = 95.55° V = 1,405.64 Den(Calc)= 6.94

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 3.4(1), 1.75(0.9), 2.06(0.8),

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
B - Bonds On/Off
Help on Above

Makovicky E , Mumme W G , Madsen I C , Neues Jahrbuch fur Mineralogie, Monatshefte , 1992 (1992) p.454-468, The crystal structure of vikingite, Locality: La Roche Balue, France

Physical Properties of Vikingite

Color:

Gray.

Diaphaneity:

Opaque

Habit:

Lamellar - Thin laminae producing a lamellar structure.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Habit:

Twinning Common - Crystals are usually twinned.

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Optical Properties of Vikingite

RL Anisotrophism:

Distinct to strong, in light gray to steel bluish black.

RL Color:

Galena-white.

RL Pleochroism:

Absent in air, absent to weak in oil.

Calculated Properties of Vikingite

Electron Density:

Bulk Density (Electron Density)=5.79 gm/cc
note: Specific Gravity of Vikingite =6.94 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_Vikingite=1,437.66 barns/electron
U=PE_Vikingite x rElectron Density=8,320.60 barns/cc.

Radioactivity:

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

Vikingite Classification

Dana Class:

03.06.11.01 (03)Sulfides - Sulfosalts

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

(03.06.11)Dana Group

03.06.11.01 Vikingite Ag5Pb8Bi13S30 C 2/m 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 Vikingite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)

See Also:

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

Search for Vikingite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Vikingite :

A Bijoux Google Search for Vikingite
Adam's Minerals Google Search for Vikingite
Cape Minerals Google Search for Vikingite
Dakota Matrix Minerals Google Search for Vikingite
Excalibur Mineral Corp. Google Search for Vikingite
Exceptional Minerals Google Search for Vikingite
John Betts Fine Minerals Search for Vikingite
McDougall Minerals Google Search for Vikingite
Mineral News Website Link
Rock and Mineral Shows Google Search for Vikingite
Weinrich Minerals, Inc. Google Search for Vikingite

Ask about Vikingite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Vikingite

Ag5Pb8Bi13S30
Dana No: 03.06.11.01 Strunz No: 02.JB.40a
Locality:

Notes: